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ADIS 16448 Temperature Anomaly

Question asked by JohnPham on Jun 6, 2016
Latest reply on Jun 6, 2016 by JohnPham

We see a 2 LSB drop in the temperature reading (0.15 C) when the IMU is undergoing a positive Z rotation. Investigating further, we find that:

  • The phenomenon applies regardless of the magnitude of the rate (fast or slow)
  • It doesn't apply to negative Z rotations
  • Nor does it apply to rotations along the X or Y axes
  • It is not isolated to a single IMU. In fact, we see the same phenomenon in all 5 IMU's we have tested
  • It applies only in the external clock configuration (not interval clock)

It is not a big performance issue for us, but what might be causing this?