NVGate - OROS GmbH
NVGate® TECHNICAL SPECIFICATIONS
NVGate
TECHNICAL
SPECIFICATIONS
®
Software Platform for OROS 3-Series
Analyzers
M002-012-9
1
NVGate® TECHNICAL SPECIFICATIONS
Table of Content
Table of Content ...................................................................................................................................... 2
General description ................................................................................................................................. 3
Modules .............................................................................................................................................. 3
Signal sources ......................................................................................................................................... 5
Front-end ............................................................................................................................................ 5
Recorder / Player................................................................................................................................ 7
Recorder ............................................................................................................................................. 7
Player ................................................................................................................................................. 8
Plug-ins analyzers ................................................................................................................................. 10
Time Domain Analysis - TDA ........................................................................................................... 10
Fast Fourier Transform analysis - FFT ............................................................................................. 11
Constant Band Order Tracking Add-on (CBT) ................................................................................. 12
Diagnostic Add-on (FFTDiag)........................................................................................................... 13
Synchronous Order Analysis (SOA) ................................................................................................. 14
Diagnostic Add-on (SOADiag).......................................................................................................... 15
1/n octave constant percentage band filter analysis - OCT ............................................................. 16
Overall acoustics sound level meter - OVA ...................................................................................... 17
Options .................................................................................................................................................. 18
Instantaneous angular Velocity Converter (IVC) .............................................................................. 18
Angular sampling (A-Samp) ............................................................................................................. 18
Virtual inputs (VIn) ............................................................................................................................ 18
Virtual parameter (VDC) ................................................................................................................... 19
Combined tachometer editor (CTE) ................................................................................................. 20
General purpose analysis ...................................................................................................................... 21
Monitor .............................................................................................................................................. 21
Waterfall ........................................................................................................................................... 21
Shared ressources ................................................................................................................................ 23
Triggering ......................................................................................................................................... 23
Output signals................................................................................................................................... 24
Filters ................................................................................................................................................ 25
Notes ..................................................................................................................................................... 26
M002-012-9
2
NVGate® TECHNICAL SPECIFICATIONS
General description
®
®
The following specifications concern NVGate software for OR34, OR35, OR36, OR38 and Mobi-Pack multianalyzer instruments. These specifications apply for on-line analysis and post analysis with or without the
instrument connected to the PC. This specification applies for NVGate version 9.00 and Teamwork instruments.
The detailed features of analyzer hardware and metrological information are available in OROS 3-Series multianalyzer/recorder instruments specifications documents.
Modules
®
NVGate software is based on a general-purpose platform where optional analysis modules called plug-in
analyzers are added.
The FFT plug-in features specific add-on for specialized analysis.
®
NVGate Platform
®
NVGate platform provides a comprehensive set of tools for noise and vibration acquisition, recording and
analysis.
These functions are arranged in 4 parts:
•
•
•
•
Signal sources that condition, provide and store time domain signals.
Shared resources that apply simultaneously or independently on distributed signal to plug-in analyzers.
Operational tools that increase measurement efficiency and reliability.
General-purpose analysis for monitoring and result tracking.
Front-end
Controls
dynamic
inputs,
generators,
external
synchronization/tach. input and parametric (DC) inputs.
Recorder
Record and store time domain signal on analyzer or PC
hard disc. Records dynamic, parametric (DC) and ext.
synch/tach inputs with multiple frequencies.
Player
Visualize, listen, playback on output or generate signals
for post-analysis purpose. Based on recorded or imported
time domain signal file.
Filters
High/low pass, Band/Stop pass, single and double
integrator, differentiator, A and C acoustic laws
Events
Edge detection, DC levels, Delta DC levels, RPM, Delta
RPM, Manual, Time period, combinations.
Weighting windows
Programmable Force and response, Hanning, Hamming,
Kaiser Bessel, flat-top, uniform.
Tachometers
Compute RPM from ext. sync and input pulses, DC, CAN.
Fractional, simulated and combined tach.
Transducers management
Automatic calibration, database management, calibration
history, automatic setup of inputs, TEDS management.
Masks
Mask editor for spectra, profiles, 1/n octave, order spectra
Operational tools Report
On-line report editor, automated report generation, word
or Excel files.
Signal sources
Shared
resources
Automation tools
Macros, sequence from Excel® sheet, alarms based on
mask comparison, customizable control panel, restricted
user profiles, remote controller interface.
Monitor
4 channels FFT analyzer with input hot swap. Statistical
extraction (RMS, Max, Min, Kurtosis) from time domain
with programmable band-pass filter.
Waterfall
Synchronized stack for 2D (spectra) and scalar (order,
overall). 3D, color map and profiles displays. Extraction
capabilities.
General purpose
analysis
M002-012-9
3
NVGate® TECHNICAL SPECIFICATIONS
®
NVGate Plug-ins analyzers
®
In addition to the standard functions featured in the software platform, NVGate can receive additional plug-in
analyzers that offer flexible configuration of independent analysis modes.
Fast Fourier Transform - Time to General-purpose
frequency
analysis,
machinery
Frequency
conversion
with
multiple signature, modal analysis acquisition (hammer or shaker),
average domains, combinable trigger, machinery diagnostic.
zooms and cross functions.
FFT
FFT Add-ons
CBT
FFTDiag
Constant Band Tracking extraction at constant bandwidth
Order Gears mesh analysis, gearboxes noise and vibration
tracking.
Cepstrum, Auto and cross correlation, Set of functions dedicated to the diagnostics of industrial
DC, Min/Max, Pk, pk/pk and crest factor.
machineries.
TDA
Machinery diagnostic, long term acquisition monitoring,
Time Domain Analysis –Time view
critical acquisition control, large structure damping control,
(oscilloscope). True statistical extraction,
shocks determination, machinery health control, trend
averaging.
analysis.
SOA
Synchronous Order Analysis - Time to Rotating machinery balancing. In vehicle order to noise
Order re-sampling with angle or order correlation R&D. Pump, compressors, turbines and speed
averaging, acoustic weightings, multiple reducer/multiplier test.
tach management.
SOADiag
(SOA Add-on)
Copstrum™, Auto and cross correlation, Set of diagnostic functions based on the synchronous
Revolution synchronous statistics, Order order analysis for rotating part transmission and forced
transmission Function (ORF™), X functions vibration extraction.
OCT
1/n Octave Constant Percentage Band General-purpose industrial
filters - 1/n octave detectors set with acoustics R&D. Noise test.
multiple averaging modes.
OVA
Overall Acoustics Detectors - 3 detectors
Industrial acoustic, sound power
+ 1 peak detection per channel with parallel
Machinery with cycles, R&D and test.
averaging and acoustic weightings.
noise
analysis.
Vehicle
measurements.
®
NVGate Options
Beside the plug-ins analyzers and their add-on, the 3-Series analyzers software features options:
IVC
Instantaneous angular velocity converter
Torsional measurements from Ext. Synch inputs
CTE
Combined Tachometer editor
Tachometer math editor - 2 inputs, 1 output
VIN
Virtual Inputs
Real-time math combination of dynamic inputs
VDC
Virtual DC
Real-time math combination of parametric inputs
Angular sampling for SOA
Real-time Angular sampling of inputs
A-Samp
PC requirements
Minimum
Recommended
(for laptop)
Recommended
(for desktop)
Connections
Operating systems
1)
1 GB1 of RAM / 250 MB free on HD + storage for measurements and signals / 1024 x 768 display
Dual/quad core processor (e.g.: Intel Core i5) / > 2.5 GHz / 4 GB of RAM / GPU / 1368 x 768 display /
1 GB free on HD + storage for signals
Quad core processor (e.g.: Intel Core i7) / 6 GB of RAM / GPU / 1920 x 1080 display / 1 GB free on
HD + storage for signals
Type: Ethernet 100/1000 BASE-T, 1 Gb/s : Connector: RJ45
For removable disk: USB 3.0 / For dongle key: USB 2.0
Windows Vista Service Pack 2 / Windows 7 / Windows 8 & 8.1 / MS Office 32 bits only
Waterfall depth depends on available memory. Minimum configuration does not allow waterfall storage.
1
) Waterfall depth depends on available memory.
M002-012-9
4
NVGate® TECHNICAL SPECIFICATIONS
Signal sources
®
NVGate /OROS 3-Series multi-analyzers platform can process signal coming from different sources. These
sources are detailed in this section as modules.
Front-end
The front-end module gathers the different input and output settings available in the instrument unit. In addition,
the front-end module generates virtual signals (synthesized) when running the office mode (no unit connected to
the PC) which is useful for set-up.
Front-end settings
Sampling clock
LEMO2 connectors management
Coupling3,4
Node information3
Dynamic inputs
Physical quantity3,4
Sensitivity3,4
Range2
External conditioner compensation3
Filter3
Label - component - node - direction (± X ,Y,Z) - type
(translation, rotation)
Any physical quantity can independently be associated to
inputs.
User defined in V/unit.
Pk to pk expressed in the associated unit, (taking in account
sensitivity) - linear or dB
Gain - polarity - offset.
Any NVGate filter can independently be applied to each
dynamic input (See Filters §)
Auto-range
Sampling
Coupling3
Enable/disable auto-ranging independently on any input
over-sampled 64 time the dynamic inputs sampling
AC (0.35 Hz) - DC
Information3
Physical quantity3,4
Sensitivity3,4
Label
Any physical quantity can be associated to inputs.
User defined in V/unit.
Range3
Pk to pk expressed in the associated unit, (taking in account
sensitivity) - linear or dB
Gain, offset.
Threshold (in associated unit) - Edge (rise, fall) - Hystersis hold off (sec)
External conditioner compensation3
Edge detection3
Pre-divider3
Ext. sync inputs
102.4 kS/s to 2,048 S/s or 65.536 kS/s to 3,200 S/s
200 V polarization on/off per block of 8 input
AC (0.35 Hz) - DC - ICP - ICP + TEDS - AC float - DC float Grounded
Post-multiplier3
Tachometer mode3
Hardware - 1 to 255 pulses – accept up to 375 kpulses/sec
1 to 50 pulses/trigger - Generate higher frequencies on low
rate triggers. (ex. GPS)
Pulse per rev: 0.5 to 4096 - average (n rev) - min (detect
stopped shaft) and max RPM speed - hold off (in % of
revolution) - rotation (clockwise/counterclockwise)
Pulse per rev: 1 to 4096 - min (detect stopped shaft) and
Torsional mode2: Instantaneous angular max RPM speed - sliding average (1 to 20 samples) Missing pulse number: 0 to 5, Missing pulses detection :1
velocity converter
to ±20%: of previous pulses duration- Filters (dt, dt², 1/dt)
for SOA - Pulse per rev: 1 to 4096 continuously (no power of
2 limitation) - Real time, in line anti-aliasing - Missing pulse
2
Angular sampling : multi-pulse/rev clock
number: 0 to 5, Missing pulses detection: 1 to ±20% of
used for signal sampling
previous pulses duration – Phase reference: Any tachometer
including same input
2
Optional features
Independent for each input
4
Linked with the transducer database
3
M002-012-9
5
NVGate® TECHNICAL SPECIFICATIONS
Front-end (continued)
Sampling
Generated signals
Same as dynamic inputs
Any outputs signals, see §outputs - play-back of signal file
tracks - DC levels - Inputs playback (Delay > 256 samples)
Any NVGate filter can independently be applied to each
dynamic output (See Filters §)
3
Filters3
50 Ω, 600 Ω (only OR36 and 0R38) or grounded
Impedance3
Outputs
3
-100 dB to + 120 dB
Gain
Synchronization3
Free run or linked to acquisitions runs
3
No (Steps) - controlled (ramp) - user selectable ramp time
Level and phase transition
User selectable - protects shaker and amplifier.
Clipping
3
Events (can trig analysis or record)
Outputs stabilized - new step reached - start & stop sweep
Controls
Emergency stop - mute/un-mute all
12.3 to 12,8 S/s - 10 Hz to 100 Hz harmonics rejection
Sampling
3
Parametric1 (DC)
inputs
Information
Label
Physical quantity3,4
Any physical quantity can be associated to inputs.
Sensitivity3,4
User defined in V/unit.
Range
Pk to pk expressed in the associated unit (taking in account
sensitivity) - linear or dB
External conditioner compensation3
Gain (-120 dB to +20 dB) - polarity - offset (< range).
Auto-range
Enable/disable auto-ranging independently on any input
Type
Normal - on Peak detection
Margin
Select the first highest range with 0 dB - 3 dB or 20 dB margin
Duration (apply for normal auto-range)
0 to 10 sec.
Peak detection
User select input were to detect peak, auto-range applies on
all enabled input at each peak detection.
Peak parameters settings
1 to 10 peaks - sensitivity (low, normal, high) - rise, fall or
any edge.
ICP5
Test and report (Open, shortcut, ok) all enabled inputs.
TEDS
Transducers automatic recognition - Complies with IEEE
1451.4 2004 Rev. 1.0
3
Auto-ranging
Checking
Front-end results & connections
The following results are available for monitoring and connection to analysis mode (plug-in analyzers)
Dynamic inputs
& torsional1
inputs
Monitoring3
Time domain instantaneous signal - Size 256 samples
Status led3 (docking tool bar)
Overloaded = red - overload occurred since last start = red
with yellow center - ok = green - under load (20 dB below
range) = green with yellow center
Connection3
To any: plug-in analyzer channel, monitor channel, Virtual
inputs, recorder track, edge event detector & tachometer
Monitoring3
Time domain instantaneous status (1 = threshold crossed, 0
= no event) - Size 256 samples.
Connection3
To any: start or stop averaging of plug-in analyzers, recorder
start or stop recording, waterfall start or stop acquisition,
new block trigger for FFT and SOA and new slice for
waterfall acquisition.
To torsional, tachometer & angular sampling
Monitoring3
Profiles versus time (160 ms to 163 sec user selectable), and
digital/analog view meter.
Status led3
Overloaded = red - ok = yellow - under load (20 dB below
range) = Cyan
Connection3
To any: recorder track, waterfall reference (Z/X axis) and
profiles, level delta level detectors and virtual DC
Ext. Sync inputs
Parametric1 (DC)
inputs & CAN1
parameters
5
For OR36, OR38 and Mobi-Pack only
M002-012-9
6
NVGate® TECHNICAL SPECIFICATIONS
Recorder / Player
OROS 3-Series/NVGate instruments feature a recorder and a player module that allows users to:
•
•
•
•
•
Record time domain signal, torsional inputs, trigger and parametric input.
Export or import time domain files.
Playback time domain files on analyzers outputs during analysis
Listen recorded tracks on the PC speakers.
Post-analyze time domain files in the available plugs-in.
Recorder
The recorder module memorizes time domain signal into files located on 3-Series analyzer HD, Mobi-Disk
PC HD. This is available on 2 different modes:
•
•
TM
or
On-line record, the chosen inputs (Dynamic, ext. sync, parametric) are recorded at selected sampling
frequency during acquisition. Real-time analysis is available simultaneously.
Time and tracks split, the chosen recorded tracks (from signal file) are played back in the recorder
using the post-analysis mode. The sampling frequency, duration, and/or track arrangement can be
changed.
Recorder settings
Dynamics inputs
2 groups of user selectable sampling frequency - From 102.4
kS/s to 2.048 S/s (40 kHz to 800 mHz) - available
simultaneously
Ext. sync inputs
Automatic selection at Front-end sampling frequency Resolution is 64 time Front-end sampling frequency
Parametric (DC) inputs
12.5 S/s (50 Hz rejection) - 15 S/s (60 Hz rejection)
Number
14 tracks6 (8 + 6 ext. sync) or 38 tracks7 (32 + 6 ext. Sync)
Sum of connected licenses using multiple hardware
Saved settings / track
Label - Coupling - External gain - Input range - Sampling
frequency and signal bandwidth - Component - Node
number - Direction - Type - Associated transducer - Unit Sensitivity and Offset compensation.
Start to time
Start recording on run or any activated event - Stop recording
when duration ends - Duration 10 ms to available space on
target HDD.
Start to stop
Start recording on run or any activated event - Stop
recording on stop on any activated event - Start and stop
event can be the same - Duration 10 ms to available space
on active drive (PC or OR3x).
Time to stop
Memorize the earliest x seconds - Stop = stop or any
activated event - Duration 10 ms to 2 GSamples (limited by
the drive available space)
Start recording (new record)
Any NVGate® event plus manual and free run
Stop recording (end current record)
Any NVGate® event plus manual and free run
Start delay
Positive = unlimited - negative = 128 kSamples
Bandwidths
Tracks
Modes
Triggering
Markers
Signal file
6
7
Stop delay
Positive = unlimited - negative = 0
Saved in the record files
Added by tool bar or shortcut - comment fields editable
during record or at end of acquisition
Record on PC HDD
Up to 10 dynamic inputs – Up to 4 parametric inputs - max
total bandwidth 512 kS/s - (2 MB/s)
Record on Analyzer SSD
Up to 40 channels (32 inputs + 6 ext. sync or DC)/instruments
- max bandwidth 3.2 MS/s (12.5 MB/s)
Format
Normal: 32 bits/sample - Compressed 16 bits/sample
For OR34, OR35 and Office-8 licenses.
For OR36, OR38 and Office licenses.
M002-012-9
7
NVGate® TECHNICAL SPECIFICATIONS
Recorder settings (continued)
Management
Download
Discard Analyzer SSD on PC HDD - Batch download
available - Rate 4 MB/s
Upload
Load PC HDD records on the analyzer SSD - Rate 1.4 MB/s
Location
All records accessible from the project manager tree
Hard drive management
Format SSD - Selective delete - Sorting tools
TM
Mobi-Disk
OR36 Mobi-Pack and OR38 multi analyzers/recorders feature a removable hard drive with 2 ports:
TM
• Parallel High speed port for direct data throughput to the Mobi-Disk .
• USB 2.0 port for post processing and data management without the instrument.
Connection
Transfer
1 to 8 Mobi-DiscTM
Up to 8 Mobi-disc connected - Active Mobi-Disc: 1 (user
selectable) - hot swap
Based on the USB 3.0 link
Download 15 MB/s
Recorder monitoring
The following displays are available during real-time or post-analysis.
RMS
Signal
Overall RMS / input
Digital or analog view-meter
Real-time
Compressed view of entire recorded signals - Automatic
update of time axis.
Player
The player module plays the recorded signal files. This is achieved following 2 different ways:
• Post-analysis, the player tracks take place of the corresponding inputs (Dynamics, Ext. Sync and
parametric) to be processed by the plug-in analyzers, recorder, trigger and tachometer
• Playbacks, the recorded dynamic input are generated on the instrument outputs simultaneously with
standard analysis of the inputs.
Player settings
Played section
Mode
File selection
NVGate® recorded files - Imported files - located on
instrument SSD, Mobi-DsicTM or on PC HDD.
Record selection
Record number selection (for multi record files)
Section definition
User selectable Start and stop offsets (in sec.) - available in
the file overview window (marker and slider)
Duration
Play backed duration (User information)
Repeat
On/off - repeat continuously the selection (available only for
playback on analyzer output)
File swap
Swap loaded files with same tracks number - applies
identical post-analysis setup to multiple files.
Playback
Continuous or step by step (5 ms to 360,000 s)
Bandwidth
All tracks at lowest frequency (compatible with all plugs-in) or
initial record frequencies (no track mix in plugs-in)
Number
Up to 352 according to user’s fleet
Type
Dynamic input record (2 sampling frequencies), parametric
(DC) input record and ext. sync record.
Fixed setting (information) / track
Label, Coupling, external gain, input range, sampling
frequency and signal bandwidth
Modifiable measurement point
information settings (apply for post
analysis or re-recording) / track
Component - node number - direction - type
Modifiable settings (apply for post
analysis or re-recording) / track
Associated transducer
compensation
Tracks
M002-012-9
8
-
unit
-
sensitivity
-
offset
NVGate® TECHNICAL SPECIFICATIONS
Player settings (continued)
Listening
Markers
File location
Analyzer HD - Mobi-DiskTM connected with USB or inside the
analyzer - PC HD
Playback
One track - from cursor position - repeat displayed signal
Display
Recorded markers are available in the file overview
Use
Set the start and stop playback offset (user selectable)
Player connections
The following table describes the available connections to the analysis modes (plug-in analyzers and recorder)
during post-analysis operation:
Dynamic inputs
& torsional
Tracks
Preview (multiple file simultaneously)
Entire file fast overview (pre-compressed at recording time) Track contents preview, independently (multi-graph display)
Monitoring (loaded file only)
Zoom on selected play-back section
Connection3 (loaded file only)
To any: plug-in analyzer channel, monitor channel,
recorder track, edge event detector and tachometer
Preview (multiple file simultaneously)
Entire file fast overview (pre-compressed at recording time) Track contents preview, independently (multi-graph display)
Monitoring (loaded file only)
Zoom on selected play-back section
Connection3 (loaded file only)
To any: start or stop averaging of plug-in analyzers, recorder
start or stop recording, waterfall start or stop acquisition,
new block trigger for FFT and SOA and new slice for
waterfall acquisition.
To torsional, tachometer & angular sampling
Preview (multiple file simultaneously)
Entire file fast overview - Track contents preview
Ext. sync Tracks
Recorded
parametric1 (DC)
inputs & CAN
parameters
M002-012-9
Monitoring (loaded file only)
Profiles versus time and digital or analog view meter.
Connection3 (loaded file only)
To any: recorder track, waterfall reference (Z/X axis) and
profiles, level and delta level events.
9
NVGate® TECHNICAL SPECIFICATIONS
Plug-ins analyzers
®
The following plug-in analyzers are available as options of NVGate software platform.
Time Domain Analysis - TDA
The TDA plug-in analyzer provides time domain based analyses and visualizations. This plug-in analyzer
computes statistical extractions and data compression of long duration oscilloscope views. All results are real time
and operations are possible on-line or in post processing. The TDA plug-ins can operate free run or synchronized
with the other plug-in analyzers.
TDA Settings
Oscillator 1
800 mHz to 40 kHz
(sampling oscillator 102.4 kS/s to 2,048 S/s)
Oscillator 2
512 mHz to 25.6 kHz
(sampling oscillator 65.536 kS/s to 3,277 S/s)
Depth
7200/ABW8 sec to 100 000 sec (27 hours) - Independent on
each channel
Time base (resolution)
Depth/2048- Independent on each channel
Type
Continuous sliding with refresh each 256 samples (Exponential)
- One shot (Linear) - Repeated shot (Repeated linear)
Duration
1/ABW to 2 106/ABW (ex: 50 ms to 1000 sec @ 2 kHz)
Bandwidths
Time views
Time span for
extraction
(averaging)
Channels
Filters
Triggering
OR36 & OR38 analyzers
32 channels per plug-in for on line 32 to 256 in post-analysis
OR34 & OR35 analyzers
8 channels per plug-in for on line and post-analysis
On each channel
Any NVGate filter can independently be applied to each dynamic
input (See Filters §)
Start analysis
Any NVGate® event plus manual and free run
End analysis
Any NVGate® event plus manual and free run
Repeat analysis
On new start or end of averaging
Trigger delay
Positive = unlimited - negative = 32k Samples
TDA Results
The following results are available for real time or post-analysis display, report and saving.
Time Views
Extractions
8
Overview
Signal envelope: Min/Max line for each time step -
Statistical values
DC - RMS - Min- Max - Peak - Peak to Peak - Crest factor Skewness - Kurtosis - computed on a user defined area of the
time view
Statistical values
DC - RMS - Min- Max - Peak - Peak to Peak - Crest factor Kurtosis - computed on the Time span – All values available for
View-meter and/or Waterfall profiles
ABW: the plug-in Analysis Bandwidth.
M002-012-9
10
NVGate® TECHNICAL SPECIFICATIONS
Fast Fourier Transform analysis - FFT
The FFT plug-in analyzer features multiple vibrations results depending on applied setting. This type of plug-in
analyzers computes real-time (on-line or post-processing) Fast Fourier Transform algorithms with multiple
averaging domain and trigger capabilities. Up to 4 FFT plug-ins can operate at the same time.
FFT Settings
Oscillator 1
800 mHz to 40 kHz
(sampling oscillator 102.4 kS/s to 2,048 S/s)
Oscillator 2
512 mHz to 25.6 kHz
(sampling oscillator 65.536 kS/s to 3,277 S/s)
Lines
101, 201, 401, 801, 1601, 3201, 6401, 128019 and 25601 lines
Frequency resolution
80 µHz (512 mHz/6401 lines)
to 400 Hz (40 kHz/101 lines)
Domain
Spectral (power) - time (with phase) - FDSA (Synchronized with
one frequency)
Type
Exponential - linear - repeated linear - referenced peak hold
(eq. to tracking filter locked on reference channel frequency) peak hold
Bandwidths
Resolution
Averaging
Channels
Weighting
Filters
Cross functions
Zoom
Triggering
Size
Duration or number of blocks, unlimited size
Overlap
0% to 99.9% depending on block size - retrigger
OR36, MP & OR38 analyzers
32 to 256 ch. per plug-in for on line and post-analysis
OR34 & OR35 analyzers
8 channels per plug-in for on line and post-analysis
General
Uniform - Hanning - Hamming - Kaiser Bessel
Modal acquisition
User defined Force (rect.) and Response (Rect. + exp)
Assignment
Independently on any channels
On each channel
Any NVGate filter can independently be applied to each dynamic
input (See Filters §)
Reference selection
Full or partial matrix available (all channels can be references)
Magnification factor
2 to 128 by step power of 2
Min., max and center frequencies
Graphically selectable on wide band spectrum
Start averaging
Any NVGate® event plus manual and free run
End averaging
Any NVGate® event plus manual and free run
New block
Any NVGate® event plus manual and free run
Repeat averaging
On new start or end of averaging
Trigger delay
Blocks rejection
Overall
Overall
9
Positive = unlimited - negative = 32k Samples
Automatic
Reject overloaded blocks
Manual
Accept or Reject after preview of averaged results (FRF,
Coherence)
Normal
Accept all blocks
Detector
Quadratic sum of spectra lines taking in account weighting
window equivalent noise bandwidth
Lower and upper frequencies
Selectable into the current FFT bandwidth
With force DSP
M002-012-9
11
NVGate® TECHNICAL SPECIFICATIONS
FFT Results
The following results are available for real time or post-analysis display, report and saving.
Time averaging
Spectral averaging
Synchronous
averaging on one
frequency (FDSA)
Time domain
Filtered signal - Triggered block - Averaged Triggered block
- Weighted Block - Lissajoux of triggered blocks
Spectra
Complex spectra
Cross-functions
Instantaneous cross-spectra - averaged cross-spectra - FRF
H1 - FRF H2 - Coherence
Overall
Overall RMS value in specified band - Overall RMS profile in
specified band.
Time domain
Filtered signal - Triggered block - Weighted Block Lissajous of triggered blocks
Spectra
Instantaneous complex spectra - averaged power spectra
Zoomed spectra
Zoomed instantaneous complex spectra - zoomed averaged
power spectra
Cross-functions
Instantaneous cross-spectra - averaged cross-spectra - FRF
H1 - FRF H2 - Coherence
Zoomed cross-function
Instantaneous zoomed cross-spectra - averaged zoomed
cross-spectra - zoomed FRF H1 - zoomed FRF H2 - zoomed
Coherence
Overall
Overall RMS value in specified band - Overall RMS profile in
specified band.
Time domain
Filtered signal - Triggered block - Averaged Triggered block
- Weighted Block - Lissajous of triggered blocks
Spectra
Instantaneous complex spectra - time domain averaged power
spectra
Overall
Overall RMS value in specified band - Overall RMS profile in
specified band.
Constant Band Order Tracking Add-on (CBT)
Constant band order tracking is an optional add-on to the FFT plug-in analyzers. This add-on computes spectrum
lines power related to RPM speed. This option adds settings and results to the FFT Plug-ins. Up to 4 constant
Band tracking can operate on 4 different tachometers at the same time.
CBT Settings
Tracked Order
Computation
Number
8 per channels
Max
0.001 to 800
Constant bandwidth
User selectable per channel - minimum depend on weighting
windows
Associated tachometer
Any front end, recorded or virtual tachometer
Peak tracking
On/Off center bandwidth on nearest peak
Order amplitude
Weighting windows eq. noise bandwidth correction
CBT Results
The following results are available for real time or post-analysis display, report and saving.
Scalar
10
Monitoring
Profiles
10
Tracked order
Digital (magnitude and phase) or analog view-meter
Cross phase tracking
Order phases are relative to the same order from a ref. channel
Overall
Digital or analog view-meter
Continuous profiles of tracked order
Profiles vs. time - profiles vs. RPM - max depth 2048 pts - user
selectable delta time - user selectable delta RPM
One shot acquisition
Tracked order (complex), cross phase orders and overall level
can be collected by the waterfall profiles.
References
Time, RPM and DC levels
These results cannot be saved
M002-012-9
12
NVGate® TECHNICAL SPECIFICATIONS
Diagnostic Add-on (FFTDiag)
FFT Diagnostic is an optional add-on to the FFT plug-in analyzers. This add-on computes a set of useful analysis
for machinery diagnostic. Up to 4 FFTDiag can operate on 4 different FFT plug-in at the same time.
This option adds settings and results to the FFT Plug-ins.
FFTDiag Settings
Envelop
demodulation
Correlation
Activation
Enable/disable on all channels - requires zoom activation
Averaging
Spectral domain - FDSA
Bandwidth
½ of zoom span - ¼ of FFT bandwidth
Activation
Enable/disable on all channels - All other FFT results are
affected
Weighting window
Uniform - Left zero padding - Centred zero padding
FFTDiag Results
The following results are available for real time or post-analysis display, report and saving.
Scalar
Others
M002-012-9
Min/Max
Minimum and maximum amplitude per trigger block
Peak detectors
Peak level - Peak to Peak level - Crest Factor - per trigger
block
Cepstrum
Cepstrum - Zoomed cepstrum
Correlation
Auto-correlation block - Cross correlation block
Shaft view
Time domain signal on first rotation - angular representation
13
NVGate® TECHNICAL SPECIFICATIONS
Synchronous Order Analysis (SOA)
The SOA plug-in analyzer features several results depending on applied settings. Up to 2 SOA plug-ins can
operate in parallel.
SOA Settings
Bandwidths
Resolution
Averaging
Tachometer
Order span
6.25 to 400 – up to 800 with ForceDSP
Frequency bandwidth
Up to 40 kHz
RPM span
Up to 192 000 RPM - Ratio of 64 between Min & Max RPM
Lines
101 - 201 - 401 – 801 – 1601 with ForceDSP
Order resolution
1 - ½ - ¼ - 1/8 - 1/16 - 1/32
Domain
Spectral (power) - revolution (re-sampled blocs)
Type
Exponential - linear - repeated linear - peak hold
Size
Number of blocks, unlimited size
Overlap
0 to 31 revolutions depending on resolution – 0 to 359° into
revolution – Retrigger on multi-pulse/rev
Computation base
Any NVGate® tachometer (ext. sync, regular input, DC input,
CAN, simulated, Fractional, and combined tach.)
Phase reference
Tachometer pulse edge or pulse center requires to analyze the
tachometer input
0° Phase reference
Cosine or sine
Max speed variation
1 to 99% per analyzed block - blocks with higher variation are
rejected. No control (set @ 100%)
RPM range
User selectable max & min RPM, under and over speed blocks
are rejected
Number
Up to 8 per channels
Min-Max
1/32 to 400 – up to 800 with ForceDSP
Cross phase tracking
Order phases are relative to the same order from a ref. channel
OR36 & OR38 analyzers
32 channels per plug-in for on line - 32 to 256 in post-analysis
OR34 & OR35 analyzers
8 channels per plug-in for on line and post-analysis
Windows selection
Uniform - Hanning - Hamming - Kaiser Bessel Applied
independently on any channels
On each channel
Any NVGate filter can independently be applied to each dynamic
input (See Filters §)
Start averaging
Any NVGate® event plus manual and free run
End averaging
Any NVGate® event plus manual and free run
New block
Any NVGate® event plus manual and free run
RPM
Tracked order
Channels
Weighting
Filters
Triggering
Overall
M002-012-9
Repeat averaging
On new start or end of averaging
Trigger delay
Positive = unlimited - negative = 1/order res revolution
Trigger block phase shift
±720° - independent for each channel
Detector
Quadratic sum of order spectra lines taking in account
weighting window equivalent noise bandwidth
Lower and upper orders
Selectable into order span - from 0,03125 to 800 with ForceDSP
14
NVGate® TECHNICAL SPECIFICATIONS
SOA Results
The following results are available for real time or post-analysis display, report and saving.
Revolution
averaging
Spectral (order)
averaging
Time domain
Filtered signal
Angle domain (Revolution)
Triggered block - Averaged Triggered block - Weighted block
Order spectra
Complex spectra
Tracked orders
Digital (magnitude & phase) view-meter - Analog view -meter
Overall
Overall RMS value in specified order band (digital or analog
view-meter)
Time domain
Filtered signal
Angle domain (Revolution)
Triggered block - Weighted Block
Order spectra
Instantaneous complex order spectra - averaged power order
spectra
Tracked orders
Digital (module and phase) and/or Analog view-meter.
Overall
Overall RMS value in specified order band (digital or analog
view-meter)
Diagnostic Add-on (SOADiag)
Order based Diagnostic is an optional add-on to the SOA plug-in analyzers. This add-on computes a set of useful
synchronous order transmission extraction tools and analyses. Up to 2 SOADiag can operate on 2 different SOA
plug-in at the same time.
This option adds settings and results to the SOA Plug-ins.
SOADiag Settings
Cross-functions
Angular
Correlation
Reference selection
Full or partial matrix available (all channels can be references) order domain averaging only.
Activation
Enable/disable on all channels - All other SOA results are
affected simultaneously
Weighting window
Uniform - Left zero padding - Centred zero padding
SOADiag Results
The following results are available for real time or post-analysis display, report and saving.
Rev.
synchronous
Scalars
Min/Max
Minimum and maximum amplitude per trigger block (n rev.)
RMS, DC
Per trigger block (n rev.)
Peak detectors
Peak level - Peak to Peak level - Crest Factor - per trigger
block (n rev.)
Copstrum™
Cepstrum of the order spectra
Cross-functions
Instantaneous order cross-spectra - averaged order crossspectra - ORF™ H1 / H2 -Coherence – angular or order
domain averaging.
Angular Correlation
Auto-correlation block - Cross correlation block - angular
averaged
Re-sampled Shaft view
Time domain signal on first rotation – angular representation instantaneous or revolutions averaged
Others
M002-012-9
15
NVGate® TECHNICAL SPECIFICATIONS
1/n octave constant percentage band filter analysis - OCT
The OCT plug-in analyzer features multiple acoustic results depending on applied setting. This plug-in analyzer
computes real-time signal (on-line or post-processing analysis) based on digital filters (CPB) and detectors.
OCT Settings
Bandwidths
Resolution
Averaging
Standards
Sampling oscillator #1
(102.4 kS/s to 2,048 S/s)
Center of highest 1/3rd band = 40 kHz
Center of lowest 1/3rd band = 100 mHz
Sampling oscillator #2
(65.536 kS/s to 3,277 S/s)
Center of highest 1/3rd band = 25 kHz
Center of lowest 1/3rd band = 100 mHz
Frequency span
Highest Band / lowest band < 2000 (ex. 10Hz - 20kHz)
1/n Octave
1, 1/3 rd, 1/12th, 1/24th
Basic
Linear & repeated linear (20 ms to 60,000 s) exponential (20
ms to 60s)
Acoustics
Short LEQ 1 s, Short LEQ 1/8 s, Fast, Slow, Impulse
Constant Bandwidth * Time
B*T = 0.2dB, 0.5 dB, 1 dB, 2 dB
Detectors
Complies with IEC 651, IEC 804, IEC 61-672 class 1
CPB filters
Complies with IEC 1260 class 1
OCT Settings (continued)
Channels
Triggering
Overall
OR36 & OR38 analyzers
32 channels per plug-in for on line - 32 to 256 in post-analysis
OR34 & OR35 analyzers
8 channels for on line and post-analysis
Start averaging
Any NVGate® event plus manual and free run
End averaging
Any NVGate® event plus manual and free run
Repeat averaging
On new start or end of averaging
Detectors
2 parallel overall detectors linear and weighted (time domain)
Weighting
A, C, or Z (none) applicable in 10 kHz - 40 kHz bandwidth
OCT Results
The following results are available for real time or post-analysis display, report and saving.
Spectra
1/n Octave spectra
Instantaneous spectra, averaged spectra
Holden spectra
Minimum & maximum spectra
Linear
Digital & analog view meter of time domain overall detector,
exact bandwidth is informed
Weighted
Digital & analog view meter of A or C weighted overall levels
computed in time domain, exact bandwidth is informed
Overall
M002-012-9
16
NVGate® TECHNICAL SPECIFICATIONS
Overall acoustics sound level meter - OVA
The OVA plug-in analyzer features class sound pressure level measurement according to IEC 61-672 standard.
This plug-in analyzer computes real-time signal (on-line or post-processing analysis) based on digital filters and
detectors.
OVA Settings
Type
Channels
Averaging
Triggering
Standard
IEC 61-672-1 - IEC 651 - IEC 804
Class
1
Bandwidths
10 Hz to 40 kHz - Adjustable
OR36 & OR38 analyzers
32 channels per plug-in for on line - 32 to 256 in post-analysis
OR34 & OR35 analyzers
8 channels for on line and post-analysis
Linear
User selectable duration - repeat mode
Short leq
1/8 s - 1 s - User selectable duration
Start averaging
Any NVGate® event plus manual and free run
End averaging
Any NVGate® event plus manual and free run
Repeat averaging
On new start or end of averaging
Peak
1 peak detector/Ch. - A, C or Z (none) weighting -Independent
for each channel
Weighting
3 overall detectors/Ch. - A, C or Z (none) weighting - Fast,
Slow, Impulse and linear time weighting - Independent for
each channel
Detectors
OVA Results
The following results are available for real time or post-analysis display, report and saving. The following levels
can be tracked in profiles up to 100 000 pts. each.
SPL
M002-012-9
Time weighted
Instant - max hold - min Hold
Averaged
Short leq - leq
Peak
Peak - Time weighted - max hold min hold
17
NVGate® TECHNICAL SPECIFICATIONS
Options
Instantaneous angular Velocity Converter (IVC)
The IVC option converts frequency to voltage from the External synch inputs. It covers torsional and acyclism
measurements. The converted signals are made available as standard inputs (or player tracks). This option
operates real-time computation and operations are possible on-line or in post processing.
IVC Settings & specs
Rate
Missing pulses
Tach. phase ref
Resolution
Pre-processing
Max Speed
Pulse/rev
0.5 to 4096 - Up to 1 E6 with pre-divider
Pulse/rev Frequency
> 40 kpulse/sec max
Pre-divider
1 to 255 - hardware decimation (pulse are not measured)
Pre-divider frequency
375 kpulse/sec max.
Number
0 to 5 consecutive pulses integer or fractional
Hold off
2 consecutive pulses
Generated signal
1st order interpolation
No missing pulse
First random - continuous offset further
missing pulse > 0
Last known edge before missing pulse
Time
160 ns : 1/(SF x 64)
Angular (with SOA)
350 µRad (20 mdegres) @ 8000 RPM, up to order 10
Smoothing
Sliding average - 1 to 32 samples
Filtering
Any NVGate filter (See Filters §) incl. dt and 1/dt
Without pre-divider
Max RPM = 2.4 e6/Pulse per rev - 12 000 RPM @ 200 pulse/rev
With pre-divider
Max RPM = 36 e6/Pulse per rev - 12 000 RPM @ 200 pulse/rev
IVC Results
The following results are available for real time or post-analysis.
Signals
View
Number
1 to 6 (depends on the number of available ext. synch)
Use
Same as dynamic inputs or recorded dynamic inputs
Magnitude
Torsional acceleration, velocity & angle – separated from
angular magnitudes (RPM)
Type
Signal - filtered signal - 256 samples frame
Angular sampling (A-Samp)
The angular sampling option allows localizing accurately the order phenomenon angle on cyclic rotating
machineries. It uses the pulses delivered by and encoder (or zebra tape or gear teeth) to resample the inputs and
torsional signal in the SOA plug-in. This option operates real-time computation and operations are possible online or in post processing.
IVC Settings & specs
See front-end/ext. Synch § for details
Virtual inputs (VIn)
The virtual input allows combining front end inputs with polynomial operations to generate a signal (new input).
This option covers numerous applications such as vector strain calculation with rosette or dynamic twist
measurement on machinery transmission. The virtual inputs are made available as standard dynamic input. A
static twist computation based on phase comparison is also available with the Vin + IVC options.
This option operates real-time computation on raw or recorded signal.
M002-012-9
18
NVGate® TECHNICAL SPECIFICATIONS
VIn Settings
Output
Sources
Output
adjustment
Sources
adjustment
Operators
Twist
Number
12 Operators
Type
New item in the active inputs/tracks list
Synchronization
0° phase shift with sources and analyzed signal
Magnitude
Automatic or voltage if unresolved
Number
1 to 32 channels
Type
Analyzer dynamic inputs or recorded dynamic inputs
Type
(Input * Coeff + Offset ) ^power - independent on each output
Offset
Any real value from -1 e9 to 1 e9 - ex: -5.67
Coefficient
Any real value from -1 e9 to 1 e9 - ex: 12
Power
Any real value from -4 to 4 - ex: 0.5
Type
Filtering [ (input * Coeff + Offset ) ^ power] - independent for
each source
Offset
Any real value from -1 e9 to 1 e9 - ex: -5.67 e-5
Coefficient
Any real value from -1 e9 to 1 e9 - ex: 1200
Power
Any real value from -4 to 4 - ex: -2.4567
Filtering
Any NVGate filter
Type
Product - Sum - independent on each operator
Type
Phase comparison – output in plane angle
Correction (zeroing) offset
-360° to +360°
Output
Plane angle or torque with conversion factor
Virtual parameter (VDC)
The virtual parameter (VDC) allows combining front-end parametric inputs (DC) with math operations to generate
a calculated parameter (new DC). This option covers numerous applications such as averaged temperature or
non linear response transducers. The virtual parameters are made available as standard DC input. This option
operates real-time computation on raw or recorded signal.
VDC Settings
Output
Sources
Editor
Output
characterization
M002-012-9
Number
12 Operators
Type
New item in the DC inputs/track list
Synchronization
0° phase shift with sources and analyzed signal
Magnitude
User defined
Number
1 to 32 channels
Type
Analyzer DC inputs or recorded DC inputs
Type
Text
Variables
Real values
Operators
+, -, x, /, ^, = (affectation)
Predefined
Ch x (Channels signals), Pi, e
Trigonometric functions
Sine, Cosine, Tangent - with Arc and Hyperbolic combination
Logarithmic functions
Log2, Log10, Ln, Exp
Miscellaneous
Sqrt, Abs, Min, Max, Sum, Avg
Limits
Min and max: +/- 1 E9 - In current unit
Information
Label (text)
19
NVGate® TECHNICAL SPECIFICATIONS
Combined tachometer editor (CTE)
The CTE option combines 2 actual tachometers with math to generates a calculated angular velocity (new
tachometer). It covers various unreachable rotating parts and more specially the CVT gear chain measurements.
The combined tachometers are made available as standard tachometer. This option operates real-time
computation and operations are possible on-line or post processing.
CTE Settings
Sources
Output
Editor
Output
characterization
Number
2
Type
Any NVGate tachometer – excepted another CTE
Type
New item in the active tachometers list
Synchronization
0° phase shift with sources and analyzed signal
Type
Text
Variables
Real values
Operators
+, -, x, /, ^, = (affectation)
Predefined
Rmp1, Rpm2 (sources speed), Pi, e
Trigonometric functions
Sine, Cosine, Tangent - with Arc and Hyperbolic combination
Logarithmic functions
Log2, Log10, Ln, Exp
Miscellaneous
Sqrt, Abs, Min, Max, Sum, Avg, Sign, If, Rint
Rotation
Clock wise or counter clock wise
Average
Sliding - 1 to 256 revolution
Speed limits
Min: 0 RPM - max: 1 200 000 RPM
Information
Label (text)
CTE Results
The following results are available for real time or post-analysis
Number
Signals
View
M002-012-9
4
Use
Same as on-line Tachometer or recorded tachometer
Magnitude
Angular velocity (RPM)
Types
View meter - 1 to 100 s rolling profile
20
NVGate® TECHNICAL SPECIFICATIONS
General purpose analysis
®
The following modules are available as standard features of NVGate software platform; they feature additional
analysis capabilities to regular plug-in analysis module.
Monitor
The monitor is an independent (dedicated processor) module that processes continuously FFT analysis on 4
channels at the maximum available bandwidth. The aim of this module is to monitor in both domains (time and
spectral) 4 inputs and to compute basic indicators for monitoring and triggering purpose.
Monitor settings
Fixed setup
Channels
Average
Overall analysis
Bandwidth
ABW = Sampling freq / 2.56
Resolution
401 lines
Average domain
Spectral (power)
Overlap
0%
Average type
Exponential
Weighting windows
Hanning
Trigger
Free run
Number
4
Swap
Between any active dynamic input - hot swap capable
Duration
Instantaneous (20 ms) to unlimited
Pass band filter
Butterworth order 2 to 10 - IIR type - Bypass function
Upper & lower frequency
User defined - can be graphically modified
Computed indicators
DC - Max - Min - RMS - Skew - Kurtosis - Into defined pass
band - overall if bypass is on
Average
User defined duration - independent from spectral averaging
Monitor results and connections
The following results are available for real time or post-analysis display, connection to other modules.
Time domain
FFT analyzer
Play back
On any output generator - hot swappable
Trigger bloc
1024 samples - time domain analyzed bloc
Spectra
Instantaneous complex spectra - averaged power spectra
Display (digital or analog view-meter)
DC - Max - Min - RMS - Skew - Kurtosis
Connection
To level and delta level event detector - to waterfall profiles
Overall detectors
Waterfall
The waterfall module operates as a stack for plug-in analyzers results. Waterfall module features advanced
graphics for 3D and profiles, including extraction tools. It can synchronize results coming from multiple plug-in
analyzers and sources in one result.
Waterfall settings
Mode
Triggering
M002-012-9
Continuous
Circular buffer of results
One shot
Fill stack and stop waterfall acquisition
Start acquisition
Any NVGate® event plus manual and free run
Stop acquisition
Any NVGate® event plus manual and free run
New slice (point or spectra)
Any NVGate® event - manual - free run - availability of
connected results - periodic
21
NVGate® TECHNICAL SPECIFICATIONS
Waterfall settings (continued)
Size
Number of result per acquisition
Up to 95 results + Time
Depth
2 to 100,000 slices or points - depend on PC available memory
and requested result - automatically adjusted before acquisition
Depth for stand-alone acquisition
Up to 3 MSamples per computation DSP
Overall levels (lin and weighted) from OvA and 1/n OCT Monitor indicators (DC, Max, Min, RMS, Kurtosis) - Orders
Type scalar (the following results are (from CBT and SOA) - Complex orders (magnitude & phase) Overall levels in selected BW from FFT & SOA (order or
connectable to waterfall channels)
frequency) - TDA scalar: DC, Min/max, RMS, Kurtosis, peak,
peak-peak, crest factor
Channels
Triggered block - Averaged Triggered block - Weighted Block Type 2D - FFT (the following results are Complex spectra - Power spectra -Cross-spectra - FRF H1 FRF H2 - Coherence - Zoomed complex spectra - zoomed
connectable to waterfall channels)
power spectra
Type 2D - OCT (the following results Instantaneous spectra - averaged spectra - max & min hold
are connectable to waterfall channels)
spectra
Type 2D - SOA (the following results Triggered block - Averaged Triggered block - Weighted block Complex order spectra - Power order spectra
are connectable to waterfall channels)
Waterfall results
The following results are available for real time or post-analysis display, report and saving. All stacked result can
be saved.
Display
3D
1 pane (3D) - 2 panes (3D + YZ view or 3D + XY view) , 3
panes (3D + YZ + XY + Extraction view) windows - automatic or
user selectable pane arrangement - Real or imaginary part and
module or phase for complex results
Z axis (X axis for extraction and YZ Any reference - time - independent for any window - swap
view)
reference at any time
Saving selection
Entire 3D data and / or any active section (YZ, XY or
Extraction)
Display
Profile of any scalar - Real or imaginary part and module or
phase for complex results
X axis
Any reference - Time – Slice - independent for any window swap reference at any time
Profiles
Waterfall Tools
The following results are available for real time or post-analysis display, report and saving.
YZ Sections (Profiles vs. Ref)
Any order/frequency - Power - Peak - on selected bandwidth
XY Sections (Spectra)
Any position in the current ref. - Min - Max - Average - on
selected range or all slices
Sections
Order/Frequency extraction (profiles Any order/frequency extraction - user selectable tach. - Power Peak - on selectable bandwidth - Max order
vs. Ref.)
Linked cursors
Number of sections
Unlimited - available on result or real-time waterfalls
General
Single or dual cursor in each view - linked with other graphs
Linked by value
Linked cursors track the same X value in different windows.
Linked by reference
Linked cursors track the same acquisition slice in different
waterfall windows with different X or Z-axis.
References are: Time - Slice number - DC channels (expressed in physical quantity) - TDA scalars - Monitor
levels- any Tachometer
M002-012-9
22
NVGate® TECHNICAL SPECIFICATIONS
Shared resources
The following resources are available for each plug-in analyzer (when it is compatible). For example once a
trigger is activated it can be applied to FFT and SOA: Then modifying the trigger setting in the resources will apply
on all corresponding plug-in.
Triggering
Each plug in analyzer (and recorder) can be started, stopped or triggered (new block) with events defined in the
Event module.
Event settings
Edge detector
RPM speed
detector
Delta RPM speed
detector
Source
Any dynamic input - Any recorded dynamic input
Label
String for event identification (Ex. “Impact” for a hammer impact
detection)
Threshold
Between min and max range - use source unit (ex. g for an
accelerometer)
Pre-filtering
A law - C law - any NVGate filter
Slope
Rise - fall
Hold off
0 to 36000 s
Hystersis
Into source input range - use source unit (ex. g for an
accelerometer)
Number
2 edge detectors
Source
Any tachometer - computed from dynamic input or ext.sync any recorded pulses (through tachometer)
Label
String for event identification (Ex. “start speed” for a run up
initial triggering)
Threshold
Detection into source tachometer RPM range
Slope
Run up - Run down
Hysteresis
0 to source max RPM
Interpolation
On interpolate event occurrence into revolution - Off event
occur at revolution ends (new pulse)
Number
2 to 6 RPM speed detector
Source
Any tachometer - computed from dynamic input or ext.sync any recorded pulses (through tachometer)
Label
String for event identification (Ex. “Each 100 RPM” for a run up
triggering)
Lower velocity
Minimum RPM speed - Events occurs only for higher source
speed
Higher velocity
Maximum RPM speed - Events occurs only for lower source
speed
Delta velocity
Define velocity step - event occur each time source speed
increase or decrease by delta velocity
Slope
Run up - run down - first, first slope is automatically selected any, event occur on any slope
Interpolation
On, interpolate event occurrence into revolution - Off, event
occur at revolution end (new pulse)
Number
2 to 6 delta RPM speed detector
Source
Any parametric (DC) input - Monitor scalar - Filtered monitor
scalar (Band Pass)
Label
String for event identification (Ex. “temp A” for a recording
trigger)
Type
Monitor scalar - DC - RMS - Max - Min - Kurtosis
Level detector
M002-012-9
Status
Above / below - Detection level - available in lin or dB
Number
1 to 4 level detectors
23
NVGate® TECHNICAL SPECIFICATIONS
Event settings (continued)
Periodic event
Combination
Plug-in
synchronization
Generators
Synchronization
Label
String for event identification (Ex. “Hourly” for 1 hour time
interval)
Time interval
2 ms to 11 days - Synchronized with analyzer.
Number
2 periodic events
Sources
Any event - 2 different sources defined as A and B
Label
String for event identification (Ex. “Time/RPM variation” for a
mix between periodic and delta RPM)
Combination
A OR B - A AFTER B - A AND B (occur in the same bloc)
Number
2 event combination
FFTx result available
Occurs at each new spectra availability - Occurs at end of
linear averaging (repeat and linear) - One event per active FFT
plug in (FFT1 to FFT4)
OCT result available
Occurs at each new 1/n spectra availability - Occur at end of
linear averaging (leq, short leq, linear repeat)
SOAx result available
Occurs at each new spectra availability - Occurs at end of
linear averaging (repeat and linear) - One event per active SOA
plug in (up to 2)
TDA result available
Occurs at each new level set ( RMS, DC, etc) availability - Occur
at end of linear averaging (repeat and linear)
OVA result available
Occurs at each new set of overall level (short LEQ) availability Occur at end of short averaging (repeat and linear)
Event synchronized with blocks of:
Multi-sine - random noise - chirps
Swept sine generator event:
Swept sine stabilized (output amplitude established) - step
sine stabilized (occur x sec after step frequency is reached) pure tone stabilized (output amplitude established)
Output signals
®
NVGate proposes a set of generator signals.
Output signals
The following output signals are available as standard and can be independently applied to the front-end outputs.
Sine
Multi-sine
M002-012-9
Type
Pure tone - Swept sine - Step sine
Frequency
100 µHz to 40 kHz - smooth variation between step - resolution
10 µHz
Frequency control
Start & stop frequencies - pause/release during sweep adjustment during pause - step
Cycle control
One shot - One cycle - continuous sweep between boundaries
Amplitude control
Settling time 100 µs to 10 s - Stabilization time 0 s to 1000 s
Sweep speed
Linear: 300 mHz/s to 20 kH/s - Log: 5 mOct/s to 330 Oct/s
Step control
Synchronized with analysis end - free run
Gain control
-15 dB to +60 dB - Independent for each output
- Amplitude variation controlled by settling time (1 ms to 1000
s)
Phase control
Offset ±360° - Independent for each output - phase variation
controlled by phase speed (1.5°/s to 360°/s)
Number
2 to 6 sine generated simultaneously - with independent
phases and amplitudes - synchronized frequencies
Frequency span
From 125 mHz to 40 kHz
Amplitude
0 to 2.5 Vrms - Settling time 100 µs to 10 s
Resolution
125 mHz to 400 Hz - 101 lines to 6401 lines
Phase
Fixed (all sine have same phase) - Random
Burst
0 to 100% - Step 1%
Number
2 to 4 independents multi-sine
24
NVGate® TECHNICAL SPECIFICATIONS
Output signals (continued)
Random noise
Chirp
Frequency span
From 125 mHz to 40 kHz - independent lower and upper
frequencies
Amplitude
0 to 2.5 Vrms - Settling time 100 µs to 10 s
Type
White - pink
Burst
0 to 100% - Step 1% - Bloc duration: 2.5 ms to 100 s
Number
2 to 6 independent and uncorrelated random noises
Frequency span
From 3.125 Hz to 40 kHz - independent lower and upper
frequencies
Amplitude
0 to 7,07 Vrms - Settling time 100 µs to 10 s
Size
256 - 512 - 1024 - 2048 - 4096 - 8192 - 16384
Burst
0 to 100% - Step 1%
Number
2 to 6 independents chirps
In addition to these predefined signal, any recorder or imported signal file can be generated synchronously on
front-end the outputs.
Filters
The following filters apply on front-end inputs, plug-ins analyzers and output generators.
High pass
Low pass
Stop/pass band
Integrators
Differentiators
Weightings
All
11
Type
Butterworth – IIR type
Order
1 to 6
Cutoff frequency
ABW11 to ABW/1024
Type
Butterworth – IIR type
Order
1 to 6
Cutoff frequency
ABW to ABW /102.4
Type
Butterworth – IIR type
Order
2 to 10
Cutoff frequencies
ABW to 0.055 * ABW
Bandwidth
ABW/2 to 0.0075 * ABW
Type
HP, Single or double
High pass frequency
ABW1/10 000 or ABW1/2 000
Integration time
2 ms to 500 s
Type
Single
Average
Sliding - 0 to 2 s
Laws
A & C laws
Bandwidths
10 kHz to 40 kHz
By-Pass
Apply/bypass without stabilisation time - independently on each
filter
Application
Same filters set for each plug-in
Label
Each filter features a user define name
ABW : the analysis bandwidth, of the plug-in or front end where the filter is in use.
M002-012-9
25
NVGate® TECHNICAL SPECIFICATIONS
Notes
The above specifications describe all the guaranteed capacities and performances of the NVGate V8.00 software
installed in a PC running Windows 7 pro (recommended configuration). Functionalities may change depending on
operation mode (connected to a 3-Series unit or office). Plug-in analyzers, options and channel number
availability depend on purchased options.
The instruments hardware are described separately in the “Instruments specifications” data sheet for OR34 &
OR35 and OR36, MP & OR38.
OROS reserves the right to modify the specifications without notification.
M002-012-9
26
NVGate® TECHNICAL SPECIFICATIONS
OROS, Leadership through Innovation
About Us
Now approaching 30-years in business, OROS’ designs and manufacturing have been renowned for providing the best in
noise and vibration analyzers as well as in specific application solutions.
Our Philosophy
Reliability and efficiency are our ambition everyday. We know you require the same for your measurement instruments:
comprehensive solutions providing performance and assurance, designed to fit the challenges of your demanding world.
Our Emphasis
Continuously paying attention to your needs, OROS collaborates with a network of proven scientific affiliates to offer the
latest of the technology, always based on innovation.
Worldwide Presence
OROS products are marketed in more than 35 countries, through our authorized network of representatives, offices and
accredited maintenance centers.
Want to know more?
OROS headquarters
OROS Inc
OROS French Sales
Office
OROS GmbH
OROS China
Tel: +33.811.70.62.36
Tel: +1.888.200.OROS
+1.703.478.3204
Tel: +33.169.91.43.00
Tel: +49.261.133.96.50
Tel: +86.10.59892134
Mail:
info@oros.com
Mail:
info@orosinc.com
Mail:
info@orosfrance.fr
Mail:
info@oroschina.com
Web:
www.oros.com
Web:
www.oros.com
Web:
www.oros.fr
Mail:
info@orosdeutschland.com
M002-012-9
Web:
www.oros-
27
Web:
www.oros.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising