Bestech Australia offer the LandMark20 MEMS GPS/AHRS from Gladiator Technologies. It is an Attitude and Heading Reference System (AHRS) that provides internally temperature compensated RS485 output of delta velocity, delta theta, heading, pitch and roll angle and altitude information.
The LandMark20 MEMS GPS/AHRS Attitude and Heading Reference system has a 16 channel C/A code GPS receiver with 10Hz position update rate and synchronised timing.
The 3 axis sensor is suitable for applications requiring low power consumption or autonomous power.
A feature of the LandMark20 MEMS GPS/ AHRS Attitude and Heading Reference system is its performance, which is optimised with fully compensated bias, scale factor, misalignment, g-sensitivity, heading, pitch and roll angles and altitude information. A spare port is available for air data or wheel counter input that supports error correction for turning errors.
There are various standard ranges available for the LandMark20 MEMS GPS/AHRS Attitude and Heading Reference system. The scale factor error is <0.5%, and requires an input voltage of 3.0 to 4.2V DC, or internal battery at 3.7V.
The GPS accuracy is to 2.5m CEP and typically, ±0.5° for heading and ±3m for altitude. The unit can withstand environmental vibration and shock typically associated with commercial aircraft requirements. The unit has a small size (115 cm3) and is light in weight (193g with battery).
The LandMark20 MEMS GPS/AHRS Attitude and Heading Reference system is suitable for low cost flight control, navigation, antenna stabilisation and pointing, general aviation along with the laboratory use.