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An Attitude and Heading Reference System (AHRS) combines the functions of a Vertical Gyro and a Directional Gyro to provide measurement of Roll, Pitch, and Heading (Azimuth) angles.

The Crossbow AHRS440, AHRS510 and AHRS500 are solid-state inertial measurement systems that utilize MEMS sensing technology and combine angular rate, linear acceleration and magnetic field measurements to create an electronically stabilized Attitude and Heading Reference System without the orientation range and warm-up limitations of traditional mechanical gyro systems.

Upcoming Products:
The AHC525 "Level A certified" Attitude Heading Reference Card is a "first of its kind" high performance embedded AHRS specifically designed for integration within Glass Cockpit Systems, Flight Management Systems and Standby Attitude Indicators.

FAA Certified Products:
* The AHRS500 product is certified per TSO C4c and TSO C6d; it is qualified per DO-160D and DO178B Level C test standards. The output is RS-232. Magnetometer functionality is included in the product, and a remote magnetometer option is supported.

* The AHRS510 product is certified per TSO C4c and TSO C6d; it is qualified per DO-160E and DO-178B Level B test standards. The output is ARINC 429. A remote magnetometer is required for heading output.

Related Products:
* Remote Magnetometers
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AHRS440 Product Features:~
●Roll, Pitch, Heading and 3-Axis Inertial Outputs
●GPS Position/Velocity Aiding Input
●Fully Compensated Over Wide Temperature Range
●High Stability MEMS Sensors
●100 Hz Output Data Rate
●Enhanced Performance Kalman Filter Algorithm
●EMI & Vibration Resistant
●Environmentally Sealed

pdf icon26AHRS440 Datasheet

pdf icon26AHRS440 Users Manual

pdf icon26AHRS Performance Test - Crossbow vs. Competition

The Crossbow AHRS440 is an Attitude & Heading Reference System (AHRS) that utilizes MEMS-based inertial sensors to provide an unmatched value in terms of both price and performance. Developed in response to years of extensive application experience in a wide variety of airborne, marine and land applications, the AHRS440 also incorporates many new and enhanced design features.

Applications:
Unmanned Vehicles.
AHRS500GA_LG

AHRS500 Product Features:~
●FAA Certified for TSO C4c and TSO C6d Requirements
●Primary Flight Attitude and Heading
●No External Air-Data or GPS "Aiding" Required
●Avionics-Style Enclosure meets DO-160D Requirements
●Continuous BIT (Built-in-Test)
 
pdf icon26AHRS500 Datasheet

pdf icon26AHRS500 Installation Manual

pdf icon26AHRS500 Installation Drawing

Crossbow Technology's AHRS500GA is the world's first stand-alone MEMS At t i tude and Heading Reference System (AHRS) to receive FAA certification. FAA TSO certification means the AHRS500GA has passed an extensive regimen of rigorous qualification tests, including the newly proposed DO-160D multiple lightning strike test. Stand-alone means the Crossbow AHRS500GA operates as a truly independent device.

Applications
General Aviation
AHRS510GA_LG02
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AHRS510 Product Features:~
●FAA Certified for TSO C4c and TSO C6d
●DO-160E and DO-178B Qualified
●Standard ARINC429 Messages
●Comprehensive BIT (Built-in-Test)
●Used with Crossbow Remote Fluxgate Magnetometer
●Automated Installation Alignment
 
pdf icon26AHRS510 Datasheet

The AHRS510GA is the world's first FAA certified MEMS Attitude and Heading Reference System (AHRS) with a standard aircraft ARINC429 interface. The AHRS510GA is designed for use in FAA certified aircraft and has passed an extensive regimen of rigorous DO-160E qualification tests.

Applications
General Aviation
Antenna Stabilization

AHC525 Attitude Reference Computer Product Features:~
●Complete "card-level" AHRS Solution
●Accuracy < 0.5 deg rms
●Meets TSO Performance without Aiding
●Small OEM Form Factor < 12 cu.in
●Low-power < 2.25W
●Lightweight <0.5lb
●High Reliability MEMS Sensors
●Roll, Pitch, Heading Outputs at 100Hz
●Certifications
●TSO C4c and TSO C6d
●DO178B Level A Software
 
pdf icon26AHC525 Preliminary Datasheet

The Crossbow AHC525 is an FAA certified Attitude & Heading Computer designed specifically for OEM avionics system applications where an embedded AHRS solution is required. The AHC525 is suitable for use in Part 23 and Part 25 aircraft systems and is certified to Level A.

Applications
General Aviation