The Offset plot produces a circle that is not centered at the origin when either sine or cosine outputs are offset from the normal curve. This offset can be caused by an imbalance in the Wheatstone bridge or through a mismatch within the gain stage of the sensor.

After calculating the difference between the positive and negative outputs, any remaining offset is calculated and removed from either output signal by subtracting from the measured output differential (Equation 5 and Equation 6).