Product overview
The Wuxi Beiwei Sensing Technology BW-AH55 is a low-cost attitude and heading reference system intended for unmanned aircraft and industrial measurement or control applications, including robots and underwater ROV navigation. It supports dynamic and static measurement with Kalman filtering, gyroscope drift compensation, bias tracking, and nonlinearity and orthogonality compensation. Pitch and roll accuracy specifications are 3° RMS dynamically and 0.5° RMS statically. Heading accuracy is 3°, with 0.01° resolution for both attitude and heading. Measurement coverage extends to ±90° in pitch and ±180° in roll.
Packaged dimensions are 55 × 37 × 24 mm, while the bare board measures 33 × 27 × 6 mm; bare-board length and width may vary by ±1 mm, so actual dimensions govern fit. Power requirements are 5-12V DC and 30mA operating current, with a 40mA maximum. The CAN-interface system specifies serial communication at 2400 to 115200 baud and a binary high-performance protocol. Maximum output frequency is 100Hz and startup delay is below three seconds. Temperature-compensated operation spans -40 to 85°C, with storage rated from -55 to 100°C.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type and interface | BW-AH55 low-cost attitude and heading reference system with CAN interface |
| Supply voltage | 5-12V DC |
| Operating current | 30mA; 40mA maximum |
| Operating temperature | -40 to 85°C |
| Storage temperature | -55 to 100°C |
| Pitch accuracy | 3° RMS dynamic; 0.5° RMS staticRMS; dynamic and static measurement. |
| Roll accuracy | 3° RMS dynamic; 0.5° RMS staticRMS; dynamic and static measurement. |
| Attitude resolution | 0.01° |
| Tilt measurement range | Pitch ±90°; roll ±180° |
| Heading accuracy | 3° |
| Heading resolution | 0.01° |
| Startup delay | Less than 3s |
| Maximum output frequency | 100Hz |
| Serial communication rate | 2400 to 115200 baud |
| Digital output format | Binary high-performance protocol |
| Shock resistance | 2000g |
| Packaged dimensions | L55 × W37 × H24 mmPackaged product. |
| Bare-board dimensions | L33 × W27 × H6 mmBare-board product; length and width may vary by ±1mm; actual dimensions govern. |
| Measurement modes | Dynamic and static measurement |
| Gyroscope drift compensation | Gyroscope drift compensation |
| Nonlinearity and orthogonality compensation | Nonlinearity compensation and orthogonality compensation |
| Bias tracking | Special bias-tracking algorithm for drift elimination |
| Temperature compensation | Temperature compensation-40°C to +85°C temperature range. |
| Filtering algorithm | High-performance Kalman filtering |
| Applications | Satellite tracking; high-voltage power-line tower and pole monitoring; aerial work vehicles; underwater ROV navigation; drilling equipment measurement and control; marine survey instruments; robot control; unmanned aircraft |
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