Product overview
The BWSENSING BW-AH127C provides dynamic and static attitude measurement for applications including unmanned aircraft, robot control and underwater robot navigation. Its processing combines Kalman filtering with nonlinearity, orthogonality, temperature and gyroscope drift compensation, alongside a dedicated bias-tracking algorithm. Pitch and roll accuracy are each 2° RMS during dynamic measurement and 0.5° RMS during static measurement. Heading accuracy is 2°, while attitude and heading resolution are both 0.01°. The measurement envelope covers pitch through ±90° and roll through ±180°.
The packaged unit measures 55 × 37 × 24 mm and weighs 60g including its cable. A bare-board format measures 33 × 27 × 11 mm, with possible ±1mm variation in length and width affecting installation space. Integration requires a 5–12V DC supply; operating current is 30mA with a 40mA maximum. Output options are RS232, RS485 or TTL with Modbus, and the digital format is a high-performance binary protocol. Startup takes less than 3s, maximum output frequency is 100Hz, and serial rates span 2400–115200 baud. Operating temperature is -40 to 85°C; storage temperature is -55 to 100°C.
Specifications
| Specification | Value & conditions |
|---|---|
| Model and product type | BW-AH127C low-cost attitude and heading reference system with Modbus protocol |
| Supply voltage | 5-12V DC |
| Operating current | 30mA; 40mA maximum |
| Operating temperature | -40 to 85°C |
| Storage temperature | -55 to 100°C |
| Pitch accuracy | 2° RMS dynamic; 0.5° RMS staticRMS; dynamic and static measurement. |
| Roll accuracy | 2° RMS dynamic; 0.5° RMS staticRMS; dynamic and static measurement. |
| Attitude resolution | 0.01°Attitude parameters. |
| Tilt range | Pitch ±90°; roll ±180° |
| Heading accuracy | 2° |
| Heading resolution | 0.01°Heading parameters. |
| Packaged dimensions | L55 × W37 × H24 mmPackaged product. |
| Bare-board dimensions | L33 × W27 × H11 mmBare board; length and width may vary by ±1mm, with actual dimensions taking precedence. |
| Weight | 60gIncluding cable. |
| Output interfaces and protocol | RS232, RS485 or TTL; Modbus protocolSelectable output interface. |
| Startup delay | Less than 3s |
| Maximum output frequency | 100Hz |
| Serial communication rate | 2400 to 115200 baud |
| Digital output format | High-performance binary protocol |
| Measurement modes | Dynamic and static measurement |
| Geometric compensation | Nonlinearity and orthogonality compensation |
| Drift compensation | Dedicated bias-tracking algorithm for drift removal; gyroscope drift compensation |
| Temperature compensation | Temperature compensation over -40°C to +85°C |
| Filtering | High-performance Kalman filtering algorithm |
| Applications | Satellite tracking; high-voltage transmission tower and pole monitoring; aerial work vehicles; ROV underwater robot navigation; drilling equipment measurement and control; marine survey instruments; robot control; unmanned aircraft |
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