Download AHRS Interface Control Document

AHRS Interface Control Document
- inside and near the lab room there must be no powerful source of
magnetic, electrical and electro-magnetic fields. The magnetic field
intensity must not be different from the Earth magnetic field intensity at
the test site more than 0.01%;
- small ferromagnetic objects must be as far as 3 meters from the test
table. Large size ferromagnetic objects such as cars and trucks must be
as far as 15 m from the table;
- it is necessary to conduct a regular check-up of the magnetic field
uniformity inside the lab room.
It is highly recommended to degauss AHRS before heading test to remove
permanent magnetization of some components in the AHRS (if you
accidentally expose the unit to a large magnetic field). You can use a handheld degausser (tape eraser) to demagnetize the AHRS. Most audio and
video degaussing units can be used. Follow the instructions for your
demagnetizer.
If heading accuracy is not checked and only pitch and roll accuracy are
tested then there are no requirements to magnetic fields and ferromagnetic
materials near place of the Inertial LabsTM AHRS mounting,
 The Inertial Labs
TM
AHRS should be mounted in a physically stable
location
Choose a location that is isolated from excessive shock, oscillation, and
vibration. Special rotary table must be used for the Inertial LabsTM AHRS
accuracy testing, that mounted on a special testing basement which is free
from the laboratory oscillations and vibrations.
Tests on vibrations and shocks are fulfilled separately from the main
accuracy tests.
4.2. Where to install the Inertial LabsTM AHRS on the object
It is necessary to follow the recommendations listed in the section 4.1
whenever it is possible, when installing the Inertial LabsTM AHRS on an
carrier object.
Inertial Labs, IncTM
Address: 13800 Coppermine Road, Suite 300, Herndon, VA 20171, USA
Tel: +1 (703) 880-4222, Fax: +1 (703) 935-8377 Website: www.inertiallabs.com
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