Product Description
The IMU6-1 MEMS Inertial Measurement Unit is designed for precision measurement of three-axis angular rate, acceleration, and inclination angle. This unit can be customized to meet specific measurement accuracy and range requirements.
The system consists of:
- Three-axis gyroscope
- Three-axis accelerometer
- Three-axis inclination sensor
- Temperature sensor
- Signal processing board
- Structural components and software
After comprehensive error compensation (including temperature compensation, installation misalignment angle compensation, and nonlinear compensation), the processed data is output via RS-422 serial port using a standardized communication protocol.
Technical Parameters
Gyroscope Specifications
| Parameter | Unit | IMU6-1 | IMU6-1A |
| Measuring range (customizable) | °/s | ±400 | ±400 |
| Zero bias stability (@ Allan Variance) | °/h | 1 | 0.5 |
| Zero bias stability (1s smooth, 1 σ, room temperature) | °/h | 10 | 5 |
| Zero bias stability (10s smooth, 1 σ, room temperature) | °/h | 5 | 1 |
| Zero-bias error over full temperature range | °/h | 20 | 10 |
| Random walk | °/√h | 0.2 | 0.1 |
| Zero-bias repeatability | °/h | 10 | 5 |
| Zero bias acceleration sensitivity | °/h/g | 1 | 1 |
| Resolution | °/h | 2 | 1 |
| Scale factor nonlinearity | ppm | 500 |
| Scale factor repeatability | ppm | 500 |
| Cross coupling | % | 0.1 |
| Bandwidth | Hz | 125 |
Accelerometer Specifications
| Parameter | Unit | IMU6-1y-1 | IMU6-1y-2 |
| Measuring range (customizable) | g | ±10 | ±30 |
| Zero-bias stability (Allan Variance @ 25°C) | mg | 0.02 | 0.05 |
| Zero-bias stability (1s smoothing) | mg | 0.1 | 0.5 |
| Zero-bias stability (10 s smoothing) | mg | 0.05 | 0.2 |
| Zero-bias error over full temperature range | mg | 1 | 3 |
| Random walk | m/s/√h | 0.001 | 0.002 |
| Zero-bias repeatability | mg | 0.1 | 0.5 |
| Scale factor repeatability | ppm | 500 |
| Scale factor nonlinearity | ppm | 500 |
| Bandwidth | Hz | 125 |
