Accuracy Increasing of Automated Control with Multiple Measurements

Abstract

Precision requirement increment for machine parts is one of the results of modern mechanical engineering development. It causes intermediate control and Acceptance test complication to allow crap rate decrement. However, Precision requirement increment may cause sufficient control technology complication and rise requirement for control devices. This problem may be solved by means of multiple measurements with optimization of its number. Traditional Student coefficient method usage causes uncertainty. Consecutive analysis with non-dimensional criteria of process stability is suggested to solve the problem. This method allows choosing minimal necessary number of measurement depending on the technological process characteristic. Because of easy mathematical realization such an algorithm may be used for measurement automation and its usage allows to optimize measurement numbers and to lower manufacturing time for machine parts.