Product overview
The BWSENSING IMU227 serves as an inertial sensing component for integration into UAVs, robots, autonomous vehicles and platform stabilization equipment. Its architecture combines gyroscope and accelerometer sensing in an overall envelope of 60 × 59 × 29 mm, with a separately specified mainboard measuring 44 × 35 × 11 mm. Selectable RS232, RS485, TTL and Modbus outputs provide integration options, while the electrical supply requirement is 9–36 V DC. Sampling reaches up to 500 Hz.
The unit incorporates temperature, dynamic and orthogonality compensation, with an operating range of -40 °C to +85 °C. Its measurement specifications depend on the stated averaging intervals and temperatures: room-temperature gyroscope bias stability is below 2°/h at 100 seconds and below 20°/h at 10 seconds, both at 1σ. Accelerometer bias stability is 0.001 mg at 100 seconds and 0.01 mg at 10 seconds, both measured at 25 °C and 1σ.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and type | BWSENSING IMU227 low-cost Modbus inertial measurement unit |
| Output interfaces | RS232 / RS485 / TTL / ModbusSelectable interface output. |
| Overall dimensions | L60 × W59 × H29 mm |
| Mainboard size | L44 × W35 × H11 mmMainboard dimensions. |
| Compensation | Dynamic compensation and orthogonality compensation |
| Sampling frequency | Up to 500 Hz |
| Supply voltage | 9–36 V DC |
| Operating temperature | -40 °C to +85 °CTemperature compensation. |
| Gyroscope bias stability at 100 s | Less than 2°/hGyroscope; room temperature; 100 s; 1σ. |
| Gyroscope bias stability at 10 s | Less than 20°/hGyroscope; room temperature; 10 s; 1σ. |
| Angular random walk coefficient | Less than 0.1 °/√hGyroscope. |
| Bias repeatability | Less than 50°/hGyroscope; 1σ. |
| Scale factor nonlinearity | ≤100 ppmGyroscope; 1σ. |
| Resolution | 0.01 mgAccelerometer. |
| Accelerometer bias | 0.15 mgAccelerometer. |
| Accelerometer bias stability at 100 s | 0.001 mgAccelerometer; 25 °C; 100 s; 1σ. |
| Accelerometer bias stability at 10 s | 0.01 mgAccelerometer; 25 °C; 10 s; 1σ. |
| Application areas | Uncrewed vessels and underwater robots; construction machinery; platform stabilization; automated guided vehicles; heavy trucks; autonomous driving; robotics; UAVs |
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