We run the the IMU in the NDOF-Mode.
Several measurment cycles are done with the IMU placed at the same initial position on an even surface (every time in the same enviroment) with the z-axis up in the air.
However the initial quaternions show different values in each cycle, even though the initial position is always exactly the same. In a measurment cycle the IMU is moved and rotated.
Cycle 1: q=(16381, -143, -278, 0)
Cycle 2: q=(-15826, 89, 292, -4227)
Cylce 3: q=(-16343, 217, 377, -1080)
What are we doing wrong?
Thanks in Advance!