AHRS consist of either solid-state or MEMS gyroscopes, accelerometers and magnetometers on all three axes. Some AHRS use GPS receivers to improve long-term stability of the gyroscopes. A Kalman filter is typically used to compute the solution from these multiple sources. AHRS differ from traditional inertial navigation systems by using magnetometer and/or GPS data to correct the raw gyroscopic data.
AHRS have proven themselves to be highly reliable and are in common use in commercial and business aircraft. Recent advances in MEMS manufacturing have brought the price of FAA certified AHRS down to below $15,000. AHRS are typically integrated into Electronic Flight Information Systems (EFIS), which are the central part of so-called glass cockpits. AHRS are often combined with air data computers to form an "air data, attitude and heading reference systems" (ADAHRS), which provide additional information such as airspeed, altitude and outside air temperature.
External links
AHRS Manufacturers:- Crossbow TechnologyInertial Systems (Inertial +GPS), Attitude Heading Reference Systems (AHRS), Inertial Measurement Units (IMU), Vertical Gyros (VG), Accelerometers, Tilt Sensors, Magnetometers.
- Kearfott Guidance & Navigation Corporation, USA
- Systron Donner Inertial
- MicroStrain Inertial Sensors, Inclinometers and Orientation Sensors
- Archangel Systems Inc. USA
- Navionex Inc. Canada
- Litef GmbH
- Sagem Avionics, Inc.
- Watson Industries
- Xsens Technologies
- Sonardyne Marine Inertial Products
- Northrop Grumman Italia S.p.A. (formerly Lital S.p.A.), ITA
- Innalabs Holding, Inc
- MGL Avionics
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Last updated on Saturday July 05, 2008 at 18:11:28 PDT (GMT -0700)
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AHRS consist of either solid-state or MEMS gyroscopes, accelerometers and magnetometers on all three axes. Some AHRS use GPS receivers to improve long-term stability of the gyroscopes. A Kalman filter is typically used to compute the solution from these multiple sources. AHRS differ from traditional inertial navigation systems by using magnetometer and/or GPS data to correct the raw gyroscopic data.
AHRS have proven themselves to be highly reliable and are in common use in commercial and business aircraft. Recent advances in MEMS manufacturing have brought the price of FAA certified AHRS down to below $15,000. AHRS are typically integrated into Electronic Flight Information Systems (EFIS), which are the central part of so-called glass cockpits. AHRS are often combined with air data computers to form an "air data, attitude and heading reference systems" (ADAHRS), which provide additional information such as airspeed, altitude and outside air temperature.
External links
AHRS Manufacturers:- Crossbow TechnologyInertial Systems (Inertial +GPS), Attitude Heading Reference Systems (AHRS), Inertial Measurement Units (IMU), Vertical Gyros (VG), Accelerometers, Tilt Sensors, Magnetometers.
- Kearfott Guidance & Navigation Corporation, USA
- Systron Donner Inertial
- MicroStrain Inertial Sensors, Inclinometers and Orientation Sensors
- Archangel Systems Inc. USA
- Navionex Inc. Canada
- Litef GmbH
- Sagem Avionics, Inc.
- Watson Industries
- Xsens Technologies
- Sonardyne Marine Inertial Products
- Northrop Grumman Italia S.p.A. (formerly Lital S.p.A.), ITA
- Innalabs Holding, Inc
- MGL Avionics
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