Non-contact Thickness Meters/Displacement Meters

Non-contact Thickness Meters/Displacement Meters
(Electrostatic capacitance type)
Non-contact
displacement meters
VT-5200/5700 Series
Gap detectors
VE Series
Non-contact
thickness meters
CL-5600 Series
New advances have been made in
displacement meters and thickness
meters that use electrostatic
capacitance, a method which has an
established reputation for accuracy
and stability.
Non-contact measurement can now be
performed in nanometer resolution,
and a frequency response of 10 kHz
has been realized.
These instruments meet a wide range
of applications, including the
measurement of the thickness of
conductors and semiconductors, and
of the axial runout of rotating objects.
They can be incorporated into
production lines, and used for
applications such as quality control
and testing in a wide variety of fields.
High-accuracy non-contact measurement.
Utilize the power of these meters for measurement
CL-5600 Series Electrostatic capacitance-type non-contact thickness meters
Built-in gap
converter type
CL-5600
VE Series
Electrostatic capacitance-type
non-contact thickness meter
Electrostatic capacitance-type
gap detectors
Separate gap
converter type
Signal cable
(2.5m)
CL-5600S
CL-0420
VE Series
Electrostatic capacitance-type
non-contact thickness meter
Gap converter
Electrostatic
capacitance-type
gap detectors
(Includes the separate CL-0420 Gap converter x 2 pcs.)
• Select the most appropriate combination to suit the sensor measurement range, required resolution and usage conditions.
Standard specifications
Maximum measurement range
Sensor model name
Resolution
Display unit
CL-5600
CL-5600S
500µm
VE-5010
0.1µm
1000µm
VE-1020
0.1µm
OK
OK
1500µm
VE-1520
0.5µm
OK
OK
3000µm
VE-3020
1µm
OK
OK
8000µm
VE-8020
2µm
OK
OK
OK
Linearity
OK
CL-5600: Uses a 1.5-m sensor
cable which cannot be
extended.
0.15%/F.S.
Specifications using optional CL-0200 high-resolution calculation function
Maximum measurement range
Sensor model name
500µm
VE-5010
200µm
VE-5010
Resolution
0.05µm
0.02µm
Comparison between
CL-5600 and CL-5600S
Display unit
CL-5600
CL-5600S
OK
OK
1000µm
VE-1020
0.1µm
OK
OK
1500µm
VE-1520
0.2µm
OK
OK
3000µm
VE-3020
0.5µm
OK
OK
8000µm
VE-8020
1µm
OK
OK
Linearity
0.12%/F.S.
2
0.15%/F.S.
CL-5600S: Uses a 1.5-m sensor
cable which can be extended
up to a maximum length of
10 m between the display
unit and the gap converter
when the gap converter is
connected. The standard
length provided is 2.5 m.
and control in a wide range of fields!
VT-5200/5700 Series Electrostatic capacitance-type non-contact displacement meters
Caution
The electrostatic capacitance-type gap
detectors, the electrostatic
capacitance-type non-contact displacement
meters and the electrostatic capacitance-type
non-contact thickness meters are not, in principle,
provided with an over-voltage safeguard for the
sensors or sensor amplifiers. If the object under
measurement is electrically charged, the sensor
amplifier may be damaged. In addition, to prevent an
adverse effect on the measurement accuracy, be
sure to affix anti-static brushes to the object
under measurement or use an antistatic
blower (to completely eliminate any
static) before performing
measurement.
VT-5210/5220
Electrostatic capacitance-type
non-contact displacement meters
VT-5710/5720
Electrostatic capacitance-type
non-contact displacement meters
• Select the most appropriate combination to suit the functions required, your application and the usage conditions.
Maximum measurement range
Sensor model name
500µm
1000µm
1500µm
3000µm
8000µm
VE-5010
VE-1020
VE-1520
VE-3020
VE-8020
Electrostatic capacitance-type displacement meter
VT-5710
VT-5720
VT-5210
VT-5220
Power requirement
±15 VDC
±15 VDC
100 to 240 VAC
100 to 240 VAC
Frequency response
4 kHz
10 kHz
4 kHz
10 kHz
0.2%/F.S.
0.25%/F.S.
0.2%/F.S.
0.25%/F.S.
Offset function
Not provided
Not provided
Provided
Provided
Monitor display
10-segment LED
10-segment LED
20-segment LED
20-segment LED
Built-in type
Built-in type
Stand-alone type
Stand-alone type
Linearity*1
Setting
*1: Linearity is the shifting rate between the actual line and ideal line.
Note: F.S. refers to the sensor's maximum measurement range.
3
VE Series Electrostatic capacitance-type gap detectors
Measurement principle
The VE Series gap detectors measure and display the gap
(displacement) from the electrostatic capacitance between the
sensor and the target measurement object. The electrostatic
capacitance C is a function of the area of the conductor that is
facing the sensor S and the gap D. If the sensor and the conductor
that it is facing (object under measurement) are parallel flat plates,
we can use the following equation to obtain the gap D by
measuring the electrostatic capacitance C.
C=
Sensor
D
,S
D
: dielectric constant
S
Conductor
Objects that can be measured
If the material of the object to be measured is a conductor, then it
can be measured. There are several different types of conductors
available as follows.
• Metal plates:
Steel, aluminum stainless steel, etc.
• Silicon wafers:
Can be measured in the same way as metal plates
(Status with the cable connected)
• Copper-clad laminated plates:
The thickness of both surfaces can be measured prior to etching.
Outline
A gap detector is a vibration/displacement sensor that uses
non-contact technology for the high-accuracy measurement
of the amount of displacement. It is used in combination
with the VT-5200/5700 Series and CL-5600 Series.
It demonstrates its best performance when used for the
measurement and control of the vibration and surface
vibration of rotating shafts such as the main shafts of
turbines, electric motors, compressors and industrial
machinery, and of the thickness and width of moving
objects.
In addition to the measurement of the amount of
displacement, a gap detector can also be used for a wide
range of other measurement and control applications such
as the measurement and monitoring of the amount of slack
and the detection of warping and objects.
• Pastes:
Pastes such as battery pole plates prior to firing
• Carbon plates:
Plates which include a large amount of the carbon material used
for gaskets, etc.
Objects that require care when they are measured
• Alumite:
Aluminum plates which have undergone alumite processing have
an insulating film on the surface which may cause unstable
measurement.
• Coated objects:
Objects coated with an insulating layer include errors in the
measured values.
• Round objects:
VE sensors operate on the premise that the object under
measurement has a flat surface. If the surface is curved,
measurement errors may occur.
Features
• Objects with a rough surface:
If the surface is rough, the measured values will be smaller when
compared to the values obtained when measurement is
performed by a contact-type instrument. This instrument
averages out the surface roughness. If the surface is very rough,
there may be cases when measurement cannot be performed.
• Can be used for any type of conductor without the need
for any adjustments.
• Simple structure; extremely durable.
• High accuracy, high stability and high resolution.
• Spongy objects:
If the object under measurement is spongy, measurement may be
smaller due to the open area ratio.
4
Measurement of insulators
Sensor calibration
Gap measurement cannot be performed when the target
measurement object is an insulator. Examples of insulators include
the following. (With a non-contact thickness meter, the thickness is
obtained from the dielectric constant and calculation performed.
Please refer to the section on non-contact thickness meters.)
In order to keep the specified accuracy, the calibration has been
performed for one-to-one each other of the sensor with the
converter or the display unit before delivery.
Recalibration is required if the sensor shall be replaced.
• Plastics
• Plastic film
• Sapphires
• Crystals
• Glass
VE Series Specifications
Model name
VE-5010
VE-1020
VE-1520
VE-3020
VE-8020
Measurement range (µm)*1
0 to 500
0 to 1000
0 to 1500
0 to 3000
0 to 8000
Minimum diameter of target
(mm)
φ6
φ8
φ10
φ20
φ40
Cable length
1.5 m (attached cable as standard)
Temperature function*4
1.5 m (VL-1520 as sold separately)
k1 = 1.7 x 10-5, k2 = 3.4 x 10-5
Operating temperature range*3
0 to +80ºC
Note: The VL-1520 signal cable is sold separately.
Note: Please refer to the page 2 and 7 for the resolution and accuracy of the VE Series.
*1: The measurement range refers to the maximum gap between the surface of the sensor tip and the object under measurement.
*2: The surface measurement area of the object under measurement must be larger than the external diameter of the sensor.
*3: The operating temperature range is the temperature range in which the sensor can operate, not the operating range for which accuracy is guaranteed. The
operating range for which accuracy is guaranteed at 23±2ºC. The temperature characteristics of the VE series are shown in the formula below.
Temperature characteristics
∆D
Precautions to note when the object to be
measured is columnar
(K1 xR+ K2 x D) ∆t
-5
K1 : Linear expansion coefficient of the sensor housing (1.7 x 10 )
The initial calibration is made for target measurement
objects that have a flat surface. Measurement can be
performed if the target diameter is larger than the sensor
diameter, but if the surface of the object is curved, it may
include error in the measured value depending on the
diameter of the curved surface.
K2 : Rate of expansion of the sensor electrode material (3.4 x 10-5)
∆t : Change in temperature
D : Measured gap
∆D : Change in the output of the converter
VE sensor
Fixing jig
R
D
5
CL-5600 Series Electrostatic capacitance-type non-contact th
Outline
The CL-5600 Series non-contact thickness meters use an electrostatic capacitance-type gap detector to measure conductors,
semiconductors and insulators. The VE Series electrostatic capacitance-type gap detectors have shown proven results as
non-contact electrostatic capacitance-type sensors, and enable high-accuracy, stable thickness measurement using easy
operations.
The CL-5600 Series offers both a conductor/semiconductor measurement function that uses two sensors (standard) and an
insulator measurement function (option: CL-0300) that uses one sensor.
Featuring a new outward appearance and enhanced functions, they utilize the revamped electrostatic capacitance-type
converters, the VE Series gap detectors.
The measurement range has been expanded, and an easy-to-read fluorescent display has been utilized for the display unit.
Moreover, the separation of the gap converter from the main unit enables the addition of an analog output, a comparator
function (option: CL-0100) and a high-resolution display function (option: CL-0200) for even more flexibility and improved
ease of use.
CL-5600: Model with gap converters built into the main unit
CL-5600S: Model with gap converters (CL-0420) that
are separated from the main unit
VL-1520 (1.5m)
Standard cable length: 2.5 meter
(It can be extended upto 10m
at maximum optionally.)
VL-1520 (1.5m)
VE sensors
VL-1520 (1.5m)
CL-0420
VE sensors
VL-1520 (1.5m)
CL-5600
(Signal cable (1.5 meter) is attached directly to the VE-5010 and VE-1020.
VL-1520 signal cable is required for other models of VE series.)
CL-0420
CL-5600
(Signal cable (1.5 meter) is attached directly to the VE-5010 and VE-1020.
VL-1520 signal cable is required for other models of VE series.)
Features
(1) The high-resolution calculation function enables a resolution at 0.02µm by using VE-5010 with optional CL-0200.
(2) The gap measurement range has been increased considerably (Maximum 8 mm when VE-8020 is used.).
(3) The length of the cable between the sensor and the gap converter is 1.5 m.
(4) The CL-5600S features separate gap converters (CL-0420). The length of the cable between each gap converter and the
main unit is 2.5 m as standard specification (Max. 10 m is possible on request as an option.).
(5) An easy-to-read vacuum fluorescent display has been utilized at the display unit.
(6) The RS-232C interface connection enables connection to a printer.
(7) Analog and comparator output functions are both provided as optional CL-0100.
(8) A function for measuring the thickness of conductors and semiconductors is provided as standard, while a function for
measuring the thickness of insulators is provided as optional CL-0300.
6
hickness meters
Measurement methods
• When measuring conductors or semiconductors
• When measuring insulators
(CL-0300 Insulator measurement function)
Install two sensors in parallel within the measurement range for
the target measurement object. Specify the space (Gs) between
these two sensors at the CL-5600 Series. Insert the target
measurement object between sensors A and B and measure the
gap between each sensor and the target measurement object
(Ga and Gb) to obtain the thickness (t).
Specify the space (Gs) between the sensor and the conductor
(reference area) at the CL-5600 Series. When the target
measurement object is inserted between the sensor and the
conductor (reference area), the sensor output becomes Ga. The
thickness (t) is obtained from the amount of change in the sensor
output and the relative dielectric constant r.
t = Gs - (Ga + Gb)
r.: Dielectric constant (When the dielectric constant of a vacuum is 1 the
dielectric constant of the target measurement object is referred to as
the relative dielectric constant.)
r
t = — x (Gs – Ga)
r–1
(
Sensor A
Target measurement object
)
Sensor A (or B)
Target measurement object
Ga
Gs
t
Gs
Ga
t
Gb
Sensor B
Conductor
Note: The sensor case and the material are assumed to have equal potential.
Note: The sensor case and the material are assumed to have equal potential.
Objects that can be measured
• Conductors, semiconductors
(when using the CL-5600 or CL-5600S’s standard functions)
• Insulators
(when using the CL-0300 option’s additional function)
Metal, conductive materials such as silicon wafers, double-sided
copper-clad laminated plates, pastes.
Carbon plates.
Thin objects that are composed of a uniform, simple material
throughout can be measured.
Relatively thin objects such as glass, crystal wafers, sapphire
wafers, film and plastic.
Compatible sensors, display resolution and linearity
The display resolution and linearity when used in combination with the VE Series electrostatic capacitance-type gap detectors are as follows.
High-resolution calculation
function (CL-0200 option)
Standard
Model
VE-5010
VE-1020
VE-1520
VE-3020
VE-8020
Measurement
range (µm)
200*
500
External
diameter (mm)
φ6
Display
Linearity
Display
Linearity
resolution (µm) (% F.S./10 to 100% F.S.) resolution (µm) (% F.S./10 to 100% F.S.)
0.1
0.15
0.02
0.12
0.1
0.15
0.05
0.12
1000
φ8
0.1
0.15
0.1
0.12
1500
φ10
0.5
0.15
0.2
0.12
3000
φ20
1
0.15
0.5
0.12
8000
φ40
2
0.15
1
0.15
• The VE-5010/1020 come with a cable attached (1.5 m cable length as standard).
• The VE-1520/3020/8020 require the separated optional VL-1520 Cable (1.5-m cable length).
• The high-resolution calculation function (CL-0200) is an option.
* VE-5010 with 200µm can be used with the CL-5600 Series only.
It cannot be used in combination with the VT-5200/5700 Series.
Perform calibration on the CL-5600 Series so that the correlation with “VE-5010 200-µm” is “one by one“.
7
CL-5600 Series Electrostatic capacitance-type non-contact thickness meters
CL-5600 Series Specifications
CL-5600
Measurement parameters
Display modes
Interface
SYNC function
Remote functions
Gap converter
Measurable objects
Display parameters
Resolution
Sampling time
Averaging
Display
Comparator function
(Option: CL-0100*3)
Analog output
(Option: CL-0100*3)
Compatible printer
(option)
Power requirement
Operatating temperature range
(achieving the specified accuracy)
Operating temperature range
Operating humidity range
External dimensions, weight
CL-5600S
Thickness of the conductor or semiconductor that is under measurement
Gap A between sensor A and the object under measurement
Gap B between sensor B and the object under measurement
Thickness of the insulator that is under measurement (CL-0300 option)*1
ABS: Measured values
DEVI: Deviation values (Measured values – reference values)
Maximum, Minimum, Maximum – Minimum
RS-232C (Cable: AX-5022/Sold separately)
Possible for the cascade connection with CL-5600 series
External start/stop of calculation function, thickness calibration, etc.
CL-0420 (a 2.5-m length cable is supplied as standard. ;
–
can be optionally increased up to a length of 10 m.)
Conductors, semiconductors, insulators*1
Thickness, Gap A, Gap B
Depends on which sensors are used. 0.1, 0.5, 1, 2 µm (0.02, 0.05, 0.2, 0.5, 1µm by using optional CL-0200*2)
20 ms
Moving mean, 1 to 64 times
Vacuum fluorescent display; either 2-row display or 1-row display (large character size) can be selected.
3-CH output
Thickness, Gap A, B (linearity ±0.2% F.S./10% to 100% F.S.)
DPU-414 (Connection cable is provided as standard part.)
* AC Power supply adaptor: PW7007 series (Sold as an option)
100 to 240 VAC, 50/60 Hz
+21 to +25ºC
0 to +40ºC
20 to 80% RH
210(W) mm x 99 (H) mm x 276(D) mm, 4.5 kg
210(W) mm x 99 (H) mm x 276(D) mm, 4.5 kg
CL-0420: 42(W) mm x 56 (H) mm x 120 (D) mm, 0.6 kg
*1: CL-0300 Insulator measurement function (option)
*2: CL-0200 High-resolution function (option)
Remote functions (pin arrangement and input signals)
Pin
A
B
C
D
E
F
G
H
*3: CL-0100 Output function (option)
Comparator output (terminal block)
The items for comparison and the threshold can be set respectively
for each of the three comparator channels (COMP1/COMP2/COMP3).
The comparator operates as shown in the figure below.
Signal name
Details
Inputs 5 to 24 VDC
Power supply • If 6 VDC or higher is supplied from an
external source, incorporate a resistor.
START
Same function as the START key
STOP
Stops the calculation mode
PAUSE
Same function as the PAUSE key
Performs calibration using the reference data
of the registered object to be measured.
• Only valid for conductor measurement.
CALIB
• The thickness of the reference data of
the registered object to be measured
cannot be changed.
Used to switch to the active status when
START STATUS the meter is in the calculation mode or the
calculation stopped mode.
COMMON
Connects to 0V
+5 V output Outputs +5 V (Max: 0.4 A)
Measured value
Upper limit value
Lower limit value
Open
Comparator output
Close
The comparator contact output closes when the specified upper limit value
(UPPER) is less than the specified value or when the specified lower limit value
(LOWER) is larger than the specified value.
• Suitable connector: R03-PB8M
8
VT-5220/5700 Series Electrostatic capacitance-type non-contact displacement meters
The VT Series comprises the VT-5200 Series with AC powered operation and VT-5700 Series with ±15 VDC specifications. 4 kHz
or 10 kHz output response frequency is provided depending on the model to enable you to select the most suitable frequency
for your application.
VT-5200 Series
VT-5210
VT-5220
VT-5210
Model name
Output
VT-5220
0 to 5 V/0 to 100% F.S.
Linearity
±0.2% F.S./10% to 100% F.S.
Temperature characteristic
±0.25% F.S./10% to 100% F.S.
Within ±0.05% F.S/ºC
Response frequency
DC to 4 kHz
Monitor display
DC to 10 kHz
20-segment LED
Analog output offset function
Power requirement
100 to 240 VAC, 10 VA
External dimensions, weight
95 (W) x 150 (H) x 195 (D), Approx. 2 kg
Note: F.S. refers to the sensor’s maximum measurement range.
VT-5700 Series
VT-5710
Model name
Output
Linearity
VT-5720
VT-5710
VT-5720
0 to 5 V/0 to 100% F.S.
±0.2% F.S./10% to 100% F.S.
Temperature characteristic
Response frequency
DC to 4 kHz
DC to 10 kHz
Monitor display
10-segment LED
Power requirement
External dimensions, weight
±0.25% F.S./10% to 100% F.S.
Within ±0.05% F.S/ºC
±15 VDC, 100 mA
42(W) mm x 56(H) mm x 120(D) mm, Approx. 0.6 kg
9
Note: F.S. refers to the sensor’s maximum measurement range.
Examples of the measurement
Conductor/semiconductor thickness measurement
Insulator thickness measurement (when the CL-0300 option is installed.)
Measurement of a silicon wafer
Example of the measurement of objects such as thin glass or crystal
VL-1520 Signal cable x 2 pcs.
Non-contact thickness measurement of glass masks for
semiconductors on a production line
Supplied by the customer
Wafer with
orientation flat
Personal computer
Transparent glass
(Wafer)
VE-1520
Gap detector x 2 pcs.
Conductor
VL-1520 Signal cable
The measuring instrument
and the sensors are
connected electrically.
VE-1520 Gap detector x 1 pc.
AX-5022
RS-232C cable
CL-015
Wafer slide table
CL-5600
Non-contact thickness meter
CPU for
system control
CL-5600
Non-contact thickness meter
Conductor
Thickness measurement during a running operation
Non-contact thickness measurement of film on a production line
Place the film so that it contacts the conductor that is to be
measured.
Steel plate rolling machine
VL-1520 Signal cable x 2 pcs.
Signal cable (directly attached to the VE-5010)
VE-8020
Gap detector
x 2 pcs.
VE-5010 Gap detector x 1 pc.
CL-5600
Non-contact thickness meter
Conductor
CL-5600
Non-contact thickness meter
Film
Anvil mounted with sensors
Displacement measurement of conductors/semiconductors
Measurement of copper-clad laminated plates
Non-contact monitoring of the vibrations and eccentricity of a rotating shaft
Copper-clad laminated plate
Insulator
Copper foil
VL-1520 Signal cable
Analog output
VL-1520 Signal cable x 2 pcs.
Connected
electrically
VT-5200 Series
VE-3020 Gap detector
x 1 pc.
Y
VL-1520
Signal cable
VE-3020
Gap detector x 2 pcs.
Connected
electrically
Analog
output
X
VE-3020 Gap detector
x 1 pc.
CL-5600
Non-contact thickness meter
VT-5200 Series
Oscilloscope monitoring
of the shaft vibrations
and eccentricity
Note: The above examples represent only a few of the diverse system configurations that have actually been implemented.
10
External Dimensions (Unit: mm)
VE-1520
Cable(φ3)
Connector
m
in
im
um
Cable(φ3)
R1
5
R1
5
f.e
22.7
17.7
φ10h7
φ4
m
in
im
um
10.7
φ4
VE-1020
17.7
φ6h7
VE-5010
φ8h7
Gap detectors
Connector
Connector
21.5
f.e
Cable length (cable part) 1.5 m
Cable length (cable part) 1.5 m
VE-3020
VE-8020
VL-1520 Signal cable
(connecting VE-1520, VE-3020, VE-8020)
VE-3020
Connector
VL-1520 (Signal cable)
Cable
(φ20, Length: 1.5m)
m
in
im
um
φ20h7
φ40
φ20h7
Connector
(25)
25
f.e
20
(51)
25
R1
5
f.e
*Figure is connection drawing of VL-1520 with VE-3020.
Non-contact thickness meter
CL-5600
(4)
275
(14)
(15)
99
210
REAR VIEW
Note: Please see the below drawing of VT-5710/VT-5720/CL-0420 for the
dimension of CL-0420.
Non-contact displacement meters
VT-5710/5720/CL-0420
(25)
195
(14)
42.4
(14)
122
(6.5)
95
(5)
150
56
VT-5210/5220
(10.5)
6.5
43
4-M3, Depth: 5
19.5
REAR VIEW
11
85
(17.5)
Example of the measurement for the wafer thickness
• CL-015 Wafer slide table (manufactured upon receipt of order)
External drawing
(Unit: mm)
Groove for removal of the workpieces,
two locations
(Width: 25 mm, Depth: 10 mm)
VL-1520 Signal cable
φ158
VE-1520 Gap detector
85
(150)
111
Measurement table
260
180
VE-1520 Gap detector
VL-1520 Signal cable
Please refer to the "Measurement of a silicon wafer" on page 10 for this application in details.
The CL-015 is a simple manual slide table that can be used together with the CL-5600 Series, VE-1520 Gap detector (2 pcs.) and VL-1520
Signal cable (2 pcs.) to perform non-contact thickness measurements of conductive wafers such as silicon wafers. Grooves have been
provided in the table surface to facilitate use of the tweezers used for vacuum adsorption.
Compatible wafer size: Diameter 100 to 150mm, Thickness 0.1 to 1mm
Note: Other special tables for 200-mm and 300-mm wafers can also be manufactured to order.
and specifications are subject to change without prior notice.
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