Shenzhen Fire Power Control Technology Co., LTD
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IMU115 MEMS inertial unit integrates 3-axis gyro and accelerometer, providing precise angular velocity and linear acceleration measurements. Features include ±250°/s gyro, ±4g accelerometer, and built-in compensation for temperature and installation errors. Compact and reliable, ideal for UAV navigation, autonomous driving, mapping, and stabilization.
1) Three-axis digital gyroscope:
a) ± 250º/s dynamic measuring range (500 °/s optional);
b) Zero bias stability: 10 °/h (GJB, 10s, typical value), 6.0 °/h(ALLAN, typical value);
2) Triaxial digital accelerometer:
a) ± 4g dynamic measurement range (configurable 16g);
b) Zero-bias stability: 0.12 mg (GJB, 10s), 0.065 mg (ALLAN);
3) High reliability: MTBF > 20000h;
4) Guaranteed accuracy within the full temperature range (-40 ℃ ~ 80 ℃):
built-in high-performance temperature calibration and compensation algorithm;
5) Suitable for working under strong vibration conditions;
6) Interface 1-way UART.
▶ Communication in motion
▶ Mapping
▶ Stabilize the platform
Table 1 Product indicators
| Parameter | Test conditions | Minimum value | Typical value | Maximum value | Unit | |
| Gyroscope | Dynamic measuring range |
|
| 250 | 500 | º/s |
| Zero bias | Allan variance |
| 3.0 |
| º/h | |
| 10 s average (-40 ℃ ~ + 80 ℃, constant temperature) |
| 6.0 |
| º/h | ||
| Zero bias | Zero bias |
| ±0.2 |
| º/s | |
| Zero bias variation over |
| ±0.3 |
| º/s | ||
| Scale factor | Scale factor accuracy |
| 0.2 |
| % | |
| Scale factor nonlinearity |
| 0.02 |
| %FS | ||
| Bandwidth |
|
| 80 |
| Hz | |
| Accelerometer | Dynamic measuring range |
|
| 4 | 16 | g |
| Zero bias | Allan variance |
| 0.065 |
| mg | |
| 10 s average (-40 ℃ ~ + 80 ℃, |
| 0.12 |
| mg | ||
| Zero bias | Zero bias |
| ±3 |
| mg | |
| Zero bias change in full |
| ±6 |
| mg | ||
| Scale factor | Scale factor accuracy |
| 0.3 |
| % | |
| Scale factor nonlinearity |
| 0.03 |
| %FS | ||
| Bandwidth |
|
| 80 |
| Hz | |
|
Communication interface |
|
|
|
|
|
|
| 1-way UART | Baud rate |
| 115.2 | 460.8 | Kbps | |
| Sampling frequency |
|
|
|
|
| |
| UART |
| 200 | 1000 | Hz | ||
| Electrical characteristics | Voltage |
| 4.5 | 5 | 5.5 | V |
| Power consumption |
|
|
| 0.35 | W | |
| Ripple | P-P |
|
| 20 | mV | |
| Structural characteristics | Size |
|
| 22.4×22.4×9.5 |
| mm |
| Weight |
|
| 16 |
| g | |
| Use environment | Operating temperature |
| -40 |
| 80 | ℃ |
| Storage temperature |
| -45 |
| 85 | ℃ | |
| Vibration |
|
| 20~2000Hz,3g |
|
| |
| Impact |
|
| 1000g,0.5ms |
|
| |
| Reliability | MTBF |
|
| 20000 |
| h |
| Continuous working time |
|
| 120 |
| h | |
| 1: Calculate the zero bias of the whole temperature change process, the temperature change rate is ≤ 1 ℃/min, and the temperature range is -40 ℃ ~ + 80 ℃; | ||||||
structure outline
