Transcript
Mag651 Low Power Unpackaged Three-Axis Magnetic Field Sensor
www.bartington.com
Mag651 Low Power Unpackaged Three-Axis Magnetic Field Sensor
Mag651 Low Power Unpackaged Three-Axis Magnetic Field Sensor This fluxgate sensor offers high sensitivity magnetic field measurements. Its exceptionally low power consumption makes it ideal for surveillance and perimeter security applications.
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Features • • • • •
Low power consumption: < 2.3mA in a 45μT field Noise band of 10-20pTrms/√Hz at 1Hz Frequency response DC to 5Hz Unpackaged for easy incorporation in multi-sensor systems Measuring range ±60μT
Typical Applications • • • •
Vehicle monitoring Intruder detection Magnetic field measurement in remote locations Multi-sensor magnetic signature ranges
Mag651 Low Power Unpackaged Three-Axis Magnetic Field Sensor
Mag651 Specifications Performance Number of axes
Three
Polarity
+ve non-inverting output when pointing North
Measuring range
±60μT
Bandwidth at-3dB
> 30Hz
Measurement noise floor
> 10 to 20pTrms/√Hz at 1Hz.
Scaling
50mV/μT
Temperature coefficient of scale factor
100ppm/°C
Start-up time
150ms
Warm-up time
15 mins
Offset
±100nT in zero field
Temperature coefficient of offset error
1nT/ºC
Scaling error
±0.5% at DC
Orthogonality error
Less than 1° error between axes
Linearity error
0.0033% (least squares fit)
Frequency response (< 5% deviation from DC)
DC – 5Hz
Hysteresis
< 2nT at 1 x full scale (when powered)
Excitation breakthrough
< 10mV pk-pk at 4kHz
MTBF
~21 years per MIL-217F-2(GB)
Environmental Operating temperature range
-40ºC to +70ºC
Storage temperature range
-55ºC to +125ºC
Environmental protection
None; no package provided
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Mechanical Dimensions (W x H x L)
29 x 25 x 100mm
Weight (approximate)
20g
Connector
Hirose DF11-10DP-2DSA(01)
Mating connector
Hirose DF11-10DS-2DSA(06) (not supplied)
Mounting points available
Six mounting holes M2.5
Electrical Supply voltage
+3.5V to +15V
Current consumption
< 2.3mA in typical Earth’s field; 2.8mA max.
Power-on surge
400mA maximum
Analogue outputs – full-scale voltages
±3V (balanced differential, each output 0.15V to 3.15V, 1.65V zero-field)
Output impedance
20Ω typical
Maximum load capacitance
> 10μF
Maximum cable length
Must have 3.5V at supply voltage pin
DS3844/1
T: +44 (0)1993 706565 F: +44 (0)1993 774813 E:
[email protected]
www.bartington.com
Bartington Instruments Limited 5 Thorney Leys Business Park Witney, Oxford, OX28 4GE, England.
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
