 |
 |
 |
 |
 |
| IFOS-2 | IFOS-4 | IFOS-5 | IFOS-6 | IFOS-10 |
| Fiber Optical Solution’s inertial measurement units IFOS-2 and IFOS-4 are miniature FOG with low-noise MEMS accelerometers (3 triads of MEMS utilized and combined) | 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-4 | IFOS-5 | IFOS-6 | IFOS-10 |
| Gyro | |||||
| Range of measured angular rate, °/s | ±950 | ±550 | ±400 | ±250 (optional ±1000) | ±550 |
| Bias drift at fixed temperature (100s-averaging, 1σ), °/hour | ≤0.2
~0.015 (Allan variance) |
≤0.1 ~0.007 (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) | ≤0.3(*≤0.2) | ≤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) | ≤200(*≤150) | ≤200(*≤100) | ≤200(*≤100) | ≤100(*≤50) |
| Random walk (Allan variance), °/√hour | ≤0.02 | ≤0.01 | ≤0.007 | ≤0.005 | ≤0.0007 |
| Bandwidth, Hz | >1000 (user defined) | ||||
| Accelerometers | |||||
| Range of measured acceleration, g | ±10g | ±10g | ±10g to ±40g | ±10g to ±40g | ±10g to ±40g |
| Bias drift at constant temperature, mg | ≤1.0 | ≤1.0 | ≤0.5 | ≤0.1 | ≤0.05 |
| Velocity random walk, µg/√Hz | ≤80 | ≤80 | ≤20 | ≤20 | ≤15 |
| Scale factor error in temperature range -40°C to +60°C (1σ), ppm | ≤500(*≤150) | ≤500(*≤150) | ≤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±0.25 | 5±0.25 | 27±5 | 27±5 |
| Power consumption, W | ≤7 W | ≤7 W | ≤10 W | ≤20 W | ≤20 W |
| Digital output interface | RS-485 | RS-422 | RS-485 or RS-422 | RS-422 | RS-422 |
| Operation temperature | -40°C ~ +60°C | ||||
| Dimensions, mm | 75×75×60 | 80 x 95 x 65 | 110 × 110 × 90 | 140 × 140 × 110 | 171 × 224 × 233 |
| Weight, kg | 0.5 | 0.7 | 1.4 | 3 | 8.4 |
| * – improved calibration spec. | |||||
© 2022 Fiber Optical Solutions. All rights reserved.