Product overview
The BWSENSING IMU327 is an inertial measurement unit with gyroscope and accelerometer sensing for integration into unmanned aircraft, robots and platform stabilization systems. Its packaged assembly measures 60 × 59 × 29 mm and carries an IP67 protection rating. Mainboard dimensions are 44 × 35 × 11 mm, providing a separate reference for board integration space. Selectable RS232, RS485, TTL and Modbus outputs offer communication interface choices. The hardware is a sensor unit for integration into a larger system.
Sampling reaches up to 500 Hz, and gyroscope bandwidth is 100 Hz. Angular-rate measurement covers ±400°/sec with 0.01°/sec resolution; acceleration measurement covers ±3.6g on the X, Y and Z axes. The temperature range is -40 °C to +85 °C, with temperature compensation. Algorithm compensation also includes nonlinearity, dynamic effects, orthogonality and drift. Gyroscope bias-stability values apply at normal temperature, while accelerometer bias-stability values apply at 25 °C; both have separate 10-second and 100-second specifications at 1σ.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | BWSENSING IMU327 Modbus inertial measurement unit |
| External dimensions | L60 × W59 × H29 mmPackaged product. |
| Board dimensions | L44 × W35 × H11 mmMainboard. |
| Protection rating | IP67 |
| Output interfaces | RS232 / RS485 / TTL / ModbusSelectable interface output. |
| Temperature range | -40 °C to +85 °CWith temperature compensation. |
| Sampling frequency | Up to 500 Hz |
| Gyroscope bias stability, 100 s | Less than 1.5°/hNormal temperature; 100 s, 1σ. |
| Gyroscope bias stability, 10 s | Less than 15°/hNormal temperature; 10 s, 1σ. |
| Angular-rate resolution | 0.01°/sec |
| Angular-rate measurement range | ±400°/sec |
| Algorithm compensation | Nonlinearity, dynamic, orthogonality, temperature and drift compensation |
| Gyroscope angular random walk | Less than 0.1°/√h |
| Gyroscope bias repeatability | Less than 50°/h1σ. |
| Bandwidth | 100 HzGyroscope. |
| Accelerometer measurement range | ±3.6gX, Y and Z axes. |
| Accelerometer bias | 0.15mg |
| Accelerometer bias stability, 100 s | 0.001mg25 °C; 100 s, 1σ. |
| Accelerometer bias stability, 10 s | 0.01mg25 °C; 10 s, 1σ. |
| Application areas | Unmanned vessels, underwater robots, construction machinery, platform stabilization, automated guided vehicles, heavy trucks, autonomous driving, robotics and unmanned aircraft |
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