AHRS-II-P
The AHRS-II-P is a tactical-grade Attitude and Heading Reference System that utilizes precision 3-axis accelerometers and gyroscopes as well as an embedded fluxgate compass to provide heading, pitch and roll data, as well as high-frequency real-time device rotation data and ongoing gyroscope corrections.
The IP67-sealed device outputs high-accuracy data in both motionless and dynamic applications, and features advanced sensor fusion and specialist algorithms tailored to the specific dynamic motions of UAVs, UGVs (unmanned ground vehicles) and land vehicles, and USVs (uncrewed surface vessels). All sensing elements are fully calibrated across the complete operating temperature range.
Specifications:
| Dimensions | 120 x 50 x 53 mm |
| Weight | 280g |
| Power | 9 – 36 VDC, 1.4W (2.4W with data logger) |
| Output Data Rate | 1 – 200 Hz |
| Gyro Bias In-Run Stability | 1 deg/hr |
| Gyro ARW | 0.2 deg/hr |
| Accel Bias In-Run Stability | 0.005 mg (±8g measurement range) |
| Accel VRW | 0.015 m/s/√hr (±8g measurement range) |
| Heading Accuracy |
0.3 deg static 0.6 deg dynamic (gyromagnetic) 0.1 deg dynamic (w/ GNSS input) |
| Pitch & Roll Accuracy |
0.05 deg static 0.08 deg dynamic |
