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Oxford Technical Solutions
Laboratory testing
There are several checks that can be performed in the laboratory to ensure the system is
working correctly. The most fragile items in the system are the accelerometers, the other
items are not subject to shock and do not need to be tested as thoroughly.
Accelerometer test procedure
To check the accelerometers are working correctly, follow this procedure.
1. Connect power and a laptop to the system.
2. Commit a default setting to the RT using NAVconfig, then run NAVdisplay.
3. Click the Calibration button, then select the Navigation tab and ensure the x, y,
and z accelerations (values 19 to 21) are within specification when the RT is placed
on a level surface in the orientations according to Table 37.
Table 37. Acceleration measurement specifications
Orientation
x y z
Acceleration measurement
Flat Flat Down z-acceleration between –9.7 and –9.9 m/s
2
Flat Flat Up z-acceleration between 9.7 and 9.9 m/s
2
Down Flat Flat x-acceleration between –9.7 and –9.9 m/s
2
Up Flat Flat x-acceleration between 9.7 and 9.9 m/s
2
Flat Down Flat y-acceleration between –9.7 and –9.9 m/s
2
Flat Up Flat y-acceleration between 9.7 and 9.9 m/s
2
This test is sufficient to ensure the accelerometers have not been damaged.
Gyro test procedure
To check that the gyros (angular rate sensors) are working correctly, follow this
procedure:
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