Twenty-Six Defense Maritime Device / Instrument
AHRS-M1 Attitude Heading Reference System
6.7 g micro attitude and heading reference system with adaptive calibration, 1.5° RMS static heading accuracy and onboard user programmability.
Description
The AHRS-M1 is the lightest attitude and heading reference system in the NAVEX line at 6.7 g, sized for gimbals, pan-tilt units and small unmanned vehicles. AdaptCal learns a platform's magnetic signature from its own motion without traditional 12-point calibration, and AdaptNav real-time noise characterization keeps heading, pitch and roll steady on noisy platforms.
Key features
- 1.5° RMS static heading accuracy; 100 Hz update rate
- Full 360° rollover and ±16 Gauss magnetic range
- NorthTek onboard Forth environment for user programming at sensor level
- 80 mW power; -40 to +85°C; 5000 g shock rating
- EAR classification 7A994
Applications
- Towed acoustic arrays and unmanned vehicle navigation
- Optical sighting and antenna positioning
Specifications
| Mass | 6.7 g |
|---|---|
| Dimensions | 38.4 x 22.9 x 8.1 mm |
| Static heading accuracy | 1.5° RMS |
| Update rate | 100 Hz |
| Power | 80 mW |
| Supply | +4 to +10 V DC |
| Temperature | -40 to +85°C |
| Shock | 5000 g, 1 ms half-sine |
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