METHOD AND APPARATUS FOR POSITIONER CALIBRATION SYSTEM

摘要

A method and apparatus for automatically calibrating the position of a movable article between two reference positions in terms of the output of an electrical position sensor. The method and apparatus are used in an article positioning system in which it is desired to precisely position the article at a preselected proportion of the distance between the reference positions. Variations in the sensing paths are compensated for by automatically registering the sensor outputs when the article is at each reference position and then interpolating other sensor values between these to obtain the article's position.