Inertial measurement unit IFOS-500 is based on Fiber Optical Solution’s three axis closed loop fiber optic gyroscope TFOS-500 and three pendulum accelerometers.

Parameter Specification
Range of measured angular rate, °/s ±400
Bias drift at fixed temperature (100s-averaging, 1σ), °/hour ≤0.1
~0.005 (Allan variance)
Bias drift at changing temperature from -40°C to +60°C (100s-averaging, 1σ), °/hour ≤0.3(*≤0.1)
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤200(*≤100)
Random walk (Allan variance), °/√hour ≤0.007
Bandwidth, Hz >1000 (user defined)
Range of measured acceleration, g ±10g to ±40g
Bias drift at constant temperature, mg ≤0.5
Velocity random walk, µg/√Hz ≤20
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤300(*≤100)
Physical Characteristics
Misalignment, ° ≤0.08(*≤0.015)
Output sample rate up to 2000 Hz
Power supply, V 5±0.25
Power consumption, W ≤10 W
Digital output interface RS-485 or RS-422
Operation temperature  -40°C ~ +60°C
Dimensions, mm 110 × 110 × 90
Weight, kg 1.4
* – improved calibration spec.


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