IFOS-2, IFOS-2-3, IFOS-2-5 IFOS-4 IFOS-5M IFOS-5 IFOS-6 IFOS-10
Fiber Optical Solution’s inertial measurement units IFOS-2, IFOS-2-3, IFOS-2-5 and IFOS-4 are miniature FOG with low-noise MEMS accelerometers (3 triads of MEMS utilized and combined) Inertial measurement unit IFOS-5M is based on Fiber Optical Solution’s three axis closed loop fiber optic gyroscope TFOS-5 and three three MEMS accelerometers. Inertial measurement unit IFOS-5 is based on Fiber Optical Solution’s three axis closed loop fiber optic gyroscope TFOS-5 and three pendulum accelerometers. Inertial measurement unit IFOS-6 is based on Fiber Optical Solution’s three closed loop fiber optic gyroscopes SFOS-6 and three pendulum accelerometers. High-precision inertial measurement unit IFOS-10 is based on Fiber Optical Solution’s three fiber optic gyroscopes SFOS-10 and three pendulum accelerometers.

 

Parameter IFOS-2 IFOS-2-3 IFOS-2-5 IFOS-4 IFOS-5M IFOS-5 IFOS-6 IFOS-10
Gyro
Range of measured angular rate, °/s ±950 ±760 ±495 ±550 ±400 ±400 ±250 (optional ±1000) ±550
Bias drift at fixed temperature (100s-averaging, 1σ), °/hour ≤0.2

~0.015 (Allan variance)

 ≤0.15
≤0.015 (Allan variance)		 ≤0.1
≤0.01 (Allan variance)		 ≤0.1
~0.007 (Allan variance)		 ≤0.1
~0.005 (Allan variance)		 ≤0.1
~0.005 (Allan variance)		 ≤0.03
~0.002 (Allan variance)		 ≤0.005
~0.0005 (Allan variance)
Bias drift at changing temperature from -40°C to +60°C (100s-averaging, 1σ), °/hour ≤0.5 (*≤0.2) ≤0.25 ≤0.2 ≤0.3(*≤0.2) ≤0.3(*≤0.1) ≤0.3(*≤0.1) ≤0.1(*≤0.05) ≤0.05(*≤0.02)
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤300(*≤150) ≤250 ≤250 ≤200(*≤150) ≤200(*≤100) ≤200(*≤100) ≤200(*≤100) ≤100(*≤50)
Random walk (Allan variance), °/√hour ≤0.02 ≤0.012 ≤0.01 ≤0.01 ≤0.007 ≤0.007 ≤0.005 ≤0.0007
Bandwidth, Hz >1000 (user defined)
Accelerometers
Range of measured acceleration, g ±10g ±10g ±10g ±10g ±10g ±10g to ±40g ±10g to ±40g ±10g to ±40g
Bias drift at constant temperature, mg ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤1.0 ≤0.5 ≤0.1 ≤0.05
Velocity random walk, µg/√Hz ≤80 ≤80 ≤80 ≤80 ≤80 ≤20 ≤20 ≤15
Scale factor error in temperature range -40°C to +60°C (1σ), ppm ≤500(*≤150) ≤500 ≤500 ≤500(*≤150) ≤500 ≤300(*≤100) ≤300(*≤100) ≤100
Physical Characteristics
Misalignment, ° ≤0.08(*≤0.015)
Output sample rate up to 2000 Hz
Power supply, V 5±0.25 5 or 27 5 or 27 5±0.25 5 or 24~36 5 or 24~36 27±5 27±5
Power consumption, W ≤7 W ≤7 W ≤7 W ≤7 W ≤10 W ≤10 W ≤20 W ≤20 W
Digital output interface RS-485 RS-485 RS-485 RS-422 RS-485 or RS-422 RS-485 or RS-422 RS-422 RS-422
Operation temperature  -30°C ~ +60°C
Dimensions, mm 75×75×60 75×75×60 75×75×60 80 x 95 x 65 110 × 110 × 90 110 × 110 × 90 140 × 140 × 110 171 × 224 × 233
Weight, kg 0.5 0.5 0.5 0.7 1.2 1.4 3 8.4
* – improved calibration spec.

 

 

 

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