Product overview
The BWSENSING BW-AH325 is a CAN-bus attitude and heading reference system intended for applications including unmanned aircraft, unmanned ground vehicles, robot control and platform stabilization. Its compact physical envelope is 60 mm long, 59 mm wide and 29 mm high, with a weight of 280 g including cable. These dimensions and cable-inclusive mass define its space and weight requirements for integration. The hardware specification covers attitude accuracy, gyroscope performance and three-axis accelerometer measurements, with CAN output as its stated interface.
Roll and pitch accuracy is 0.3°, while heading accuracy is 0.5°. The tilt range covers pitch through ±90º and roll through ±180º; gyroscope and accelerometer measurement ranges are ±400°/sec and ±3.6 g respectively. Temperature compensation accompanies a -40°C to +85°C temperature range. Accelerometer bias stability is 0.001 mg over 100 seconds or 0.01 mg over 10 seconds at 25°C, both at 1σ. Shock resistance is 2000 g for 0.5 ms, three times per axis.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | BW-AH325 CAN-bus attitude and heading reference system |
| Output interface | CAN |
| Roll and pitch accuracy | 0.3° |
| Heading accuracy | 0.5° |
| Tilt range | Pitch ±90º; roll ±180º |
| Temperature range | -40°C to +85°CTemperature compensated. |
| Dimensions | L60 × W59 × H29 mm |
| Weight | 280 gIncluding cable. |
| Mean time between failures | ≥90,000 hours |
| Electromagnetic compatibility | According to GBT17626 |
| Insulation resistance | ≥100 MΩ |
| Shock resistance | 2000 g0.5 ms; three times per axis. |
| Gyroscope resolution | 0.01°/sec |
| Gyroscope measurement range | ±400°/sec |
| Gyroscope bias stability | 15°/hFull temperature range; 10 s, 1σ. |
| Gyroscope angular random walk coefficient | Less than 0.1 °/√h |
| Gyroscope scale factor nonlinearity | ≤100 ppm1σ. |
| Gyroscope scale factor repeatability | ≤100 ppm1σ. |
| Gyroscope bandwidth | 100 Hz |
| Accelerometer measurement range | ±3.6 gX, Y and Z axes. |
| Accelerometer bias stability | 0.001 mg; 0.01 mg25°C; 100 s, 1σ for 0.001 mg; 10 s, 1σ for 0.01 mg. |
| Applications | Satellite tracking, unmanned ground vehicles, platform stabilization, drilling equipment measurement and control, marine survey instruments, robot control and unmanned aircraft |
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