MEMS INERTIAL NAVIGATION SYSTE
KT-EX9-2 MEMS INERTIAL MEASUREMENT UNIT
KT-EX9-2 is a high performance and rugged Inertial Measurement Unit (IMU) comprised of 3 highly accurate MEMS gyros, 3 high stability MEMS accelerometers ,1 Barometer and 1 Magnetometer. The IMU is factory calibrated and compensated for temperature effects over the full temperature operating range.
The KT-EX9-2 IMU is well suited for stabilization, guidance and navigation applications in Industrial. It is a crucial building block for inertial navigation systems ,robotics and more.
Features
1. Small size, low weight and low cost
2. 72 °/h gyro bias error over temperature gradients
3. 30 °/h gyro bias instability
4. 0.3 °/√h angular random walk
5. ±450 °/s angular rate input range（Special Order）
6. ±20 g acceleration input range（Special Order）
7. 0.1 mg accelerometer bias instability
8. RS-422 serial interface
| Parameter | unit | KT-EX9-2 | |
| GYRO | Input range | o/s | 450 |
| Bias instability（1s，1σ） | o/h | 30 | |
| Bias error over temperature gradients | o/h | 72 | |
| Angular random walk | o/√h | 0.3 | |
| Repeatability of bias | o/h | 30 | |
| Repeatability of scale factor | ppm | 100 | |
| Non-linearity of Scale factor | ppm | 100 | |
| Bandwidth (-3dB) | Hz | 250 | |
| ACCELEROMETER | Input range | g | 20 |
| Bias instability（@Allan） | mg | 0.1 | |
| Bias error over temperature gradients | mg | 10 | |
| Random walk | m/s/√h | 0.03 | |
| Repeatability of bias | mg | 10 | |
| Repeatability of bias | % | 1 | |
| Non-linearity of Scale factor | %FS | 0.1 | |
| Bandwidth (-3dB) | Hz | 100 | |
| Magnetometer | Input range | gauss | 13 |
| Sensitivity | mgauss/LSB | 0.1 | |
| Barometer | Input range | mbar | 450~1100 |
| Error | mbar | 6 | |
| Communication interface | 1channelSPI | MHz | 15 |
| 1channelUART | Kbps | 230.4（Special Order） | |
| Environmental | Power supply | V | 3.3±0.3 |
| Power consumption | W | 1.5 | |
| Physical characteristics | Dimensions | mm | 47×44×15 |
| Weight | g | 50 | |
| Environmental | Operating temperature | ℃ | -40~85 |
| Storage temperature | ℃ | -55~85 | |
| Vibration | — | 10~2000Hz，6.06g | |
| Shock | — | 5000g，0.1ms | |
| Reliability | MTBF | h | 20000 |
| Continuous operating time | h | 120 |
