INS
GUI User’s Manual
Inertial Labs, Inc
TM
Address: 39959 Catoctin Ridge Street, Paeonian Springs, VA 20129 U.S.A.
Tel: +1 (703) 880-4222, Fax: +1 (703) 935-8377 Website: www.inertiallabs.com
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10.5. Orientation accuracy test of the INS
To check INS accuracy it is recommended to use “Inertial Labs INS GUI”
software, which allows estimating accuracy of a INS in given range of
orientation angles. At the same time it is necessary to use special device
allowing to set angular positions of the INS strong with respect to tested
angles. The INS should be rotated just in plane of one of its base surfaces.
The “Inertial Labs INS GUI” software allows two variants of INS accuracy
test:
Angles accuracy, at which the INS restarts each time after it set on
new reference angle;
On-the-fly accuracy when INS operates continuously at setting and
changing of reference angles (See section "5.3. On-the-fly accuracy
style of visualization").
“Angles accuracy” is more convenient for further analysis. In this case
separate data file is created for each tested INS position. “On-the-fly
accuracy” is designed for continuous INS operation at it setting to different
reference angles. This have sense at magnetic interference tests, for
example.
10.5.1. Separate accuracy test for each reference angle
Step 1. Carefully set INS by two reference surfaces on platform of the
test bench designed for accuracy check.
Step 2 - Step 5 – Perform Step 1- Step 4 from the section 10.1.
Step 6. Select “Angles Accuracy” from the ”Plugins” menu (Fig.
3.4). Accuracy check window will appear (Fig. 8.4). In the left upper corner
of the dropdown window choose orientation angle (Heading, Pitch or Roll)
for the INS testing.
Step 7. Click “Devices…” button. “Devices Properties…” window (Fig.
8.5) will appear.
Step 8. Select required amount of the tested INS units in “Number of
Devices” field.
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