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IMU Sensor Accelerometer Calibration
The IMU sensor must be calibrated with a 6 point
accelerometer calibration every so often. If the A10 is not
stabilizing as it should or is coupling multiple axis movements
together with only motion in one axis being imposed a 6 point
calibration will be required. Calibration is done with the GUI
utility. To conduct a 6 point calibration you will need to remove
the IMU sensor from the A10. The IMU is mounted to the
camera mounting plate tube. Figure 22. You will need a flat
surface that remains perfectly still. There can be no motion of
the IMU sensor when doing the calibration. Follow these steps.
1) Orient the IMU in the starting position as shown. Figure 23.
2) In the GUI go to the ‘Basic’ tab. Look down and to the right for the ‘CalibAcc’ button. Click the
button and keep the IMU still for 6 seconds.
3) Click the ‘Write’ button in the GUI.
4) Now rotate the IMU 90 degrees and click the ‘CalibAcc’ button. Wait 6 seconds. Do NOT click ‘write’
button from this point forward through the process. Write button is to only be clicked once in step 3.
5) Continue to rotate the IMU until all sides have been calibrated. Be sure to keep the IMU very still for 6
seconds each time. Also it is important that the IMU be oriented perfectly flat and/or perpendicular
to the flat surface you are using to calibrate.
6) Once all six sides have been calibrated the IMU 6 point calibration is complete.
Figure 21. Accelerometer Calibration in GUI
Figure 23.. IMU 6pt. calibration orientations
Figure 22. IMU Location
