APPENDIX A IMU Technical Specifications
OEM7 SPAN Installation and Operation User Manual v14
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A.5.3 IMU-IGM Sensor Specifications
Gyroscope Performance
Gyro Input Range
± 450 °/second
In Run Gyro Rate Bias Stability
6.25 °/hour
Angular Random Walk
0.3 °/√hour
Accelerometer Performance
Accelerometer Range
± 18 g
In Run Accelerometer Bias Stability
0.1 mg
Velocity Random Walk
0.029 m/s/√hour
Data Rate
IMU Measurement
200 Hz
Table 59: IMU-IGM-A1 IMU Performance
Gyroscope Performance
Gyro Input Range
± 400 °/second
In Run Gyro Rate Bias Stability
0.5 °/hour
Angular Random Walk
0.15 °/√hour
Accelerometer Performance
Accelerometer Range
± 10 g
In Run Accelerometer Bias Stability
0.05 mg
Velocity Random Walk
0.07 m/s/√hour
Data Rate
IMU Measurement
125 Hz
Table 60: IMU-IGM-S1 IMU Performance
