MEMS Based Inertial Measurement Unit With A High-Performance MEMS
Gyroscope And Accelerometer
1. Product overview
The 16497C-C0-IMU is a micromachining technology (MEMS) based
inertial measurement unit (IMU) with a high-performance MEMS
gyroscope and MEMS
The accelerometer outputs 3 angular velocities and 3 accelerations.
2. Product features
- Three-axis digital gyroscope:
- ± 500º/s dynamic measuring range;
- Zero bias stability: 5 °/H (GJB, 10s), 1.0 °/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 channel UART, 1 channel SPI, 1 channel CAN
3. Product indicators
| Parameter | Test conditions | Minimum value Typical value | Maximum value | Unit |
| Dynamic measuring range |
|
| 500 | º/s |
| Zero bias stability | Allan variance 10 s average (-40 ℃ ~ + 80 ℃, constant temperature) | 1.0 5 |
| º/h º/h |
Gyro | Zero bias | Zero-bias range Zero bias change over full temperature range ○ 1 | ±0.2 ±0.06 |
| º/s º/s |
| Scale factor | Scale factor accuracy Scale factor nonlinearity | 0.3 0.02 |
| % %FS |
| Resolution |
| 3.052×10−7 |
| º/s/LSB |
| Bandwidth |
| 200 |
| Hz |
| Dynamic measuring range |
| 16 | g mg mg mg mg % %FS g/LSB Hz |
| Zero bias stability | Allan variance 10 s average (-40 ℃ ~ + 80 ℃, constant temperature) | 0.1 0.5 |
Accelerometer | Zero bias | Zero-bias range Change of zero bias within full temperature range, peak-to-peak
value ○ 1 | 2 2 |
| Scale factor | Scale factor accuracy Scale factor nonlinearity | 0.3 0.02 |
| Resolution |
| 1.221×10−8 |
| Bandwidth |
| 200 |
| Communication interface | 1-way SPI | Baud rate | 15 | MHz |
| Parameter | Test conditions | Minimum value | Typical value | Maximum value | Unit |
| 1-way UART | Baud rate |
| 230.4 |
| Kbps |
| 1-way CAN | Baud rate |
|
| 1 | MHz |
| SPI |
| 200 | 1000 | Hz |
| Sampling frequency | UART |
| 200 |
| Hz |
| CAN |
| 200 |
| Hz |
| Voltage |
| 3.0 | 3.3 | 3.6 | V |
| Electrical characteristics | Power consumption |
|
|
| 1.5 | W |
| Ripple | P-P |
|
| 100 | mV |
| Structural characteristics | Size |
| 47×44×14 | mm |
| Weight | 50 | g |
Use environment | Operating Temperature Storage Temperature Vibration
Impact |
| -40 |
| 80 | ℃ |
| -45 |
| 85 | ℃ |
| 20~2000Hz, |
|
|
| 6.06g |
|
|
| 1000g,0.5ms |
|
|
Reliability | MTBF |
| 20000 | h |
| Continuous working time | 120 | h |
IMU polarity definition
3 gyros and 3 accelerometers is defined as shown in the
figure below, and the direction of the arrow is positive.
