Inertial Measurement Unit (IMU) Based On Micromachining Technology
(MEMS)
The IMU200B-IMU is an inertial measurement unit (IMU) based on
micromachining technology (MEMS) with built-in high-performance
MEMS gyroscope and MEMS accelerometer, which outputs 3 angular
velocities and 3 accelerations. Product features- Three-axis digital gyroscope:
- ± 500º/s dynamic measuring range;
- Zero bias stability: 8 °/H (GJB, 10s), 1.9 °/H (ALLAN);
- Triaxial digital accelerometer:
- ± 16 G dynamic measuring range;
- Zero-bias stability: 0.5mg (GJB, 10s), 0.1mg (ALLAN);
- High reliability: MTBF > 20000h;
- Guaranteed accuracy within the full temperature range (-40 ℃ ~ 80
℃): built-in high-performance temperature calibration and
compensation algorithm;
- Suitable for working under strong vibration conditions;
- Interface 1-way RS422
| Test conditions | Typical value | |
|---|
| Angular velocity | | |
|
|
| | | Zero bias | Stability | 10 s average, + 70 ℃, + 20 ℃, -40 ℃ |
|
|
| | | Allan variance, + 20 ℃ |
| 2.85 | 3.8 | | | Repeatability of successive starts | - ℃,+20℃,-40℃
|
| 22.5 | 30 | | | Daily start repeatability | - ℃,+20℃,-40℃
|
| 45 | 60 | | | Monthly Start Repeatability | - ℃,+20℃,-40℃
|
| 90 | 120 | | | Zero-bias total temperature variation | -40 ℃ ~ + 70 ℃, 1 ℃/min, 10 s average, 1σ |
| 0.03 | 0.04 | | | Zero bias | Life-cycle change, accelerated testing |
| 0.225 | 0.3 | | | Scale factor | Repeatability of successive starts | - ℃,+20℃,-40℃
|
| 150 | 200 |
| | Daily start repeatability | - ℃,+20℃,-40℃
|
| 300 | 400 |
| | Monthly Start Repeatability | - ℃,+20℃,-40℃
|
| 600 | 800 |
| | Non-linearity | - ℃
|
| 300 | 400 |
| | Full temperature change | - ℃/min,1σ
|
| 600 | 800 |
| | Scale factor | Life-cycle change, accelerated testing |
| 4500 | 6000 |
| | Acceleration sensitive term |
|
|
|
| | | Random walk |
|
|
|
| °/√hr | | Noise density |
|
|
|
| °/s/√Hz | | Bandwidth |
|
| | | Data delay | Excluding transmission time |
|
| | |
|
|
|
| | Zero bias | Stability | 10 s average, + 70 ℃, + 20 ℃, -40 ℃ |
|
| | Allan variance, + 20 ℃ |
|
| | Repeatability of successive starts | - ℃,+20℃,-40℃
|
|
| | Daily start repeatability | - ℃,+20℃,-40℃
|
|
| | Monthly Start Repeatability | - ℃,+20℃,-40℃
|
|
| | Zero-bias total temperature variation | -40 ℃ ~ + 70 ℃, 1 ℃/min variation |
|
| | Zero bias | Life-cycle change, accelerated test instead |
|
| | Scale factor | Repeatability of successive starts | - ℃,+20℃,-40℃
|
|
|
| | Daily start repeatability | - ℃,+20℃,-40℃
|
|
|
| | Monthly Start Repeatability | - ℃,+20℃,-40℃
|
|
|
| | Non-linearity | - ℃
|
|
|
| | Full temperature change | After full temperature calibration and compensation, 1 ℃/min, 10 s average peak-peak value |
|
|
| | Scale factor | Life-cycle change, accelerated test instead |
|
|
| | Bandwidth |
|
| | | Data delay | Excluding transmission time |
|
| | Start time | Time from power up to output valid data |
|
| | Reset time | Time from reset to output valid data (hard reset) |
|
| | Time from reset to output valid data (soft reset) |
|
| 3 gyro axes and 3 acceleration axes The degree of nonorthogonality between any two ax | - ℃,+20℃,-40℃
|
| | | Power supply |
|
|
| | Power consumption |
|
|
| | Communication update rate | 1-way RS422 | 200 (default) 500 (Max) | | | Communication baud rate | 1-way RS422 | 230.4 (default) 921.6 (Max) |
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