DS3551 Mag614

DS3551 Mag614
Mag614 and Mag615
High Temperature Miniature Three-Axis Fluxgate Probes
Innovation in Magnetic Field Measuring Instruments
Spacemag Three-Axis Space Magnetometer
Mag614 and Mag615
High Temperature Miniature Three-Axis Fluxgate Probes
These miniature probes operate to 175oC and are designed to survive high levels of
shock and vibration. They are ideally suited for measurement while drilling (MWD)
applications.
Ambient temperature electronics can be supplied in packaged and unpackaged
versions, and a PCB schematic is also available.
Features
• Compact probe heads for easy integration into other systems
Mag614
• Dimensions: 25x10x20mm (Mag614) and 20x17x20mm (Mag615)
• Room temperature electronics and PCB schematic available
• Flying lead (Mag615)
Typical applications
• Measurement while drilling (MWD)
Mag615
• Applications requiring high shock and temperature resistance
Mag614 and Mag615 Specifications
Performance
Mag614
Mag615
Number of axes
Three (right hand XYZ co-ordinate system)
Polarity
+ve non-inverting when pointing North
Output scaling (Note: value will depend
on electronic drive and sense circuit
used)
60µT / mA typical TBC
Scaling error
±5% at 25°C, ±10% at 175°C
Linearity error
0.005% (Least Squares Fit)
Temperature coefficient of scaling
±0.015% FS range / °C max
Frequency response
<5% amplitude error DC to 1kHz
Frequency range
DC – 3 kHz minimum within 3dB level
Measurement noise floor
<300 pTrms/√Hz at 1Hz across temperature range within 20 minutes of power applied
Zero field offset
±500nT max. at 25°C, when scaled for 100µT range
Temperature co-efficient of offset
±0.0005% FS range / °C max
Orthogonality error between axes
<2° target
Alignment error to enclosure side
<3° target
Start-up / settling time
99% of final value in 0.5s
120µT / mA typical TBC
Environmental
Operating temperature range
-20ºC to +175ºC
Storage temperature range
-40ºC to +175ºC
Mechanical
Mag614
Mag615
Dimensions excl. cable (W x H x L)
25x10x20mm maximum
20x17x20mm maximum
Weight (approximate)
<30g
<30g
Connector (Mag614) /
Pinning (Mag615)
2 rows of 4 off 0.6mm diameter pins, 2.54mm pitch, for through hole mounting to
electronics PCB (not supplied)
Cable (flying lead version only)
n/a
Mounting points available
4 off mounting holes M2.5
8 off PTFE wires colour coded
Electrical performance (each axis)
Mag614
Mag615
Primary resistance
5.2Ω ±20%
10.4Ω ±20%
Primary inductance
130µH ±20% TBC
260µH ±20% TBC
Secondary resistance
27.4Ω ±20%
54.8Ω ±20%
Secondary inductance
1.2mH ±20% TBC
2.4mH ±20% TBC
Recommended primary coil drive current
4mA peak AC coupled
Recommended excitation frequency
32kHz
16kHz
www.bartington.com
DS3551/2
Bartington Instruments Limited,
T: +44 (0)1993 706565
5, 10 & 11 Thorney Leys Business Park,
F: +44 (0)1993 774813
Witney, Oxford, OX28 4GE, England.
E:[email protected]
The specifications of the products described in this brochure are subject
to change without prior notice.
Bartington® is a registered trademark of Bartington Instruments Ltd.
www.bartington.com
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