Wed, Jun 10, 2009
As we noted yesterday, you rarely see the tiny little boxes that
provide the physical guidance for today's ingenious generation of
glass panel cockpits. Solid-state by design and bereft of the
hundreds of moving parts once associated with gyros and their
support systems, the modern AHRS is a dependable, and superior
replacement for the vacuum pumps and gyros of old.
Known by a variety of similar names, the modern AHRS is an
all-electronic Attitude and Heading Reference System that combines
the functions of a Vertical Gyro and a Directional Gyro to provide
measurement of Roll, Pitch, and Heading (Azimuth) angles.
But... some AHRS are even smaller than others. Crossbow
Technology took some time at the 2009 AEA Convention to brief us on
their ultra-small AHC525 AHRS. The Crossbow AHC525 is an FAA
certified Attitude & Heading Card 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 avionics systems and is certified to Level A.
Founded in 1995, Crossbow pioneered the use of
Micro-Electro-Mechanical System (MEMS) Inertial System technology
in a wide variety of airborne, land and marine applications.
Crossbow first introduced FAA-certified MEMS-based Attitude and
Heading Reference Systems (AHRS) to General Aviation on the FAA
Capstone program, and the company continues to be at the forefront
of AHRS and Inertial Systems development.
With corporate headquarters in San Jose, CA, and Asian offices
in Tokyo and Osaka, Japan, Crossbow has distributors in 24
countries worldwide. Crossbow is ISO 9001/2000 certified, holds
several FAA TSO approvals, and operates an FAA MIDO approved
facility.
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