APPENDIX A IMU Technical Specifications
OEM7 SPAN Installation and Operation User Manual v14
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A.2.2 IMU-CPT Sensor Specifications
Gyroscope Performance
Bias Offset
±20 °/hour
Turn On To Turn On Bias Repeatability (Compensated)
±3 °/hour
In Run Bias Variation, At Constant Temperature
1 °/hour @ 1σ
Scale Factor Error (Total)
1500 ppm, 1σ
Scale Factor Linearity
1000 ppm, 1σ
Temperature Dependent SF Variation
500 ppm, 1σ
Angular Random Walk
0.0667 °/√hour @ 1σ
Maximum Input
±375 °/second
Accelerometer Performance
Bias Offset
±50 mg
Turn On To Turn On Bias Repeatability
±0.75 mg
In Run Bias Variation, At Constant Temperature
0.25 mg @ 1σ
Temperature Dependent Bias Variation
0.5 mg/°C @ 1σ
Scale Factor Error (Total)
4000 ppm, 1σ
Temperature Dependent SF Variation
1000 ppm, 1σ
Accelerometer Noise
55 μg/√Hz @ 1σ
Bandwidth
50 Hz
Accelerometer Bias
±10 g
Data Rate
IMU Measurement
100 Hz
Table 38: IMU-CPT Performance
