Twenty-Six Defense Maritime Device / Instrument
AHRS-M2 Attitude Heading Reference System
12.3 g precision AHRS with 0.2° RMS static heading accuracy, under 1.0° RMS across -40 to +70°C, 60 mW operation and 16 mW sleep mode.
Description
The AHRS-M2 is a precision attitude and heading reference system with 0.2° RMS static heading accuracy, holding under 1.0° RMS across the full -40 to +70°C range. It uses the same AdaptCal and AdaptNav foundation as the AHRS-M1, paired with a high-resolution, low-noise magnetometer.
Key features
- 0.2° RMS static heading accuracy
- 60 mW typical operation, 16 mW sleep mode
- Update rate selectable 10 or 100 Hz
- 10-pin interface with two reserved GPIO and a reserved UART; 3.3 V logic UART, 1.2-115.2 kbaud
- EAR classification 7A994
Applications
- Towed acoustic arrays, unmanned vehicle navigation and platform stabilization
- Optical targeting and antenna positioning
Specifications
| Mass | 12.3 g |
|---|---|
| Dimensions | 38.4 x 22.9 x 9.1 mm |
| Static heading accuracy | 0.2° RMS |
| Update rate | 10/100 Hz selectable |
| Power | 60 mW typical @ 4 V; 16 mW sleep |
| Supply | +4 to +10 V DC (unregulated) |
| Interface | 3.3 V logic UART, 1.2-115.2 kbaud |
More from Twenty-Six Defense Maritime
- Sparton AN/SSQ-53 DIFAR Passive Sonobuoys
- Sparton AN/SSQ-62 DICASS Active Sonobuoys
- Sparton AN/SSQ-101B Commandable Passive Sonobuoy
- Sparton AN/SSQ-125 Multi-Static Source Sonobuoy
- Sparton AN/SSQ-36B Bathythermograph Sonobuoy
- NAVEX AHRS-M1 Attitude Heading Reference System
- Sparton Submarine-Launched and Air-Deployable Payload Systems
- Sparton Acoustic Augmentation Support Project (AASP)
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