An Application of Kalman Filter for Measurement of Straightness Shape

Abstract

As one of method measuring straightness shape, we've proposed an application of identification technique and Kalman filter. The system of this method consists of a computer and three distance sensors arranged in a row at regular intervals on the sensors head.
As the head shifts one sensor's span, the distance values to the surface are aquired simultaneously by three sensors.
By using identification technique and Kalman filter, we've compensated data errors which are mixed to these distance values.