Ax - Examine Compass Calibration - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual
AX – Examine Compass Calibration
Purpose Used to verify the compass calibration.
Format AX
Recommended Setting. Use as needed.
Description Compass calibration verification is an automated built-in test that measures how well the
compass is calibrated. The procedure measures compass parameters at every 5º of rota-
tion for a full 360º rotation. When it has collected data for all required directions, the H-
ADCP computes and displays the results. Pay particular attention to the Overall Error.
Example >AX
----------------------------------------------------------------------------
TRDI Compass Error Estimating Algorithm
Press any key to start taking data after the instrument is setup.
Rotate the unit in a plane until all data samples are acquired...
rotate less than 5°/sec. Press Q to quit.
N NE E
^ ^
************************************************************************
Accumulating data ...
Calculating compass performance ...
Press D for details or any other key to continue...
HEADING ERROR ESTIMATE FOR THE CURRENT COMPASS CALIBRATION:
OVERALL ERROR:
Peak Double + Single Cycle Error (should be < 5°):
DETAILED ERROR SUMMARY:
Single Cycle Error:
Double Cycle Error:
Largest Double plus Single Cycle Error:
RMS of 3rd Order and Higher + Random Error:
Orientation:
Average Pitch: -19.29°
Average Roll:
Successfully evaluated compass performance for the current compass calibration.
Press any key to continue...
SE S
^
>>> Total error:
Down
Pitch Standard Dev:
-0.59° Roll Standard Dev:
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
SW W NW
^
1.5° <<<
± 1.55°
± 1.54°
± 0.07°
± 1.61°
± 0.31°
0.28°
0.31°
May 2015
N
^
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