Product overview
The Wuxi Beiwei Sensing Technology BW-AH127C provides attitude and heading reference measurements for integration into unmanned aircraft, robot control systems and other instrumented equipment. It supports dynamic and static measurements, with pitch and roll accuracy of 2° RMS dynamically and 0.5° RMS statically. Heading accuracy is 2°, while attitude and heading resolution are both 0.01°. Its processing features include Kalman filtering, nonlinearity and orthogonality compensation, bias tracking, gyroscope drift compensation and temperature compensation. Pitch measurement covers ±90°, and roll measurement covers ±180°.
The packaged unit measures 55 × 37 × 24 mm, with a listed weight of 60g including the cable. A bare-board configuration measures 33 × 27 × 11 mm; its length and width may vary by ±1mm, so integration space must accommodate that dimensional tolerance. Electrical integration requires 5-12V DC, with operating current of 30mA and a maximum of 40mA. Selectable RS232, RS485 or TTL output supports Modbus, alongside a listed high-performance binary output format. Startup delay is under 3s, maximum output frequency is 100Hz, and serial rates span 2400 to 115200 baud.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer | Wuxi Beiwei Sensing Technology |
| 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 respectively. |
| Roll accuracy | 2° RMS dynamic; 0.5° RMS staticRMS; dynamic and static measurement respectively. |
| Attitude resolution | 0.01°Attitude measurement. |
| Tilt range | Pitch ±90°; roll ±180° |
| Heading accuracy | 2° |
| Heading resolution | 0.01°Heading measurement. |
| Packaged dimensions | L55 × W37 × H24 mmPackaged product. |
| Bare-board dimensions | L33 × W27 × H11 mmBare board; length and width may vary by ±1mm; actual product dimensions govern. |
| Weight | 60gIncluding cable. |
| Output interfaces and protocol | RS232/RS485/TTL selectable; 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 |
| Compensation and filtering | Nonlinearity and orthogonality compensation; bias-tracking algorithm for drift elimination; gyroscope drift compensation; temperature compensation; high-performance Kalman filtering |
| Applications | Satellite tracking; high-voltage transmission tower and pole monitoring; aerial work vehicles; ROV underwater robot navigation; drilling equipment measurement and control; marine surveying instruments; robot control; unmanned aircraft |
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