Fiber Optical Solution’s inertial measurement unit IFOS-400 is miniature FOG with low-noise MEMS accelerometers (3 triads of MEMS utilized and combined)

Parameter Specification
Range of measured angular rate, °/s ±550
Bias drift at fixed temperature (100s-averaging, 1σ), °/hour ≤0.1
~0.007 (Allan variance)
Bias drift at changing temperature from -40°C to +60°C (100s-averaging, 1σ), °/hour ≤0.3(*≤0.2)
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤200(*≤150)
Random walk (Allan variance), °/√hour ≤0.01
Bandwidth, Hz >1000 (user defined)
Range of measured acceleration, g ±10g
Bias drift at constant temperature, mg ≤1.0
Velocity random walk, µg/√Hz ≤80
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤500(*≤150)
Physical Characteristics
Misalignment, ° ≤0.08(*≤0.015)
Output sample rate up to 2000 Hz
Power supply, V 5±0.25
Power consumption, W ≤7 W
Digital output interface RS-422
Operation temperature  -40°C ~ +60°C
Dimensions, mm 80 x 95 x 65
Weight, kg 0.7
* – improved calibration spec.


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