一、前言在现代化的生产线上,为了进行生产过程的控制和监测,越来越多地需要不接触的测量和控制系统。日前,光学测量和控制方法广泛地用于过程控制和监测。这种方法,由于它具有对过程参数能进行快速、不接触和选择性的探测等优 I. Introduction In the modern production line, in order to control and monitor the production process, it is more and more necessary to have a non-contact measurement and control system. Recently, optical measurement and control methods are widely used in process control and monitoring. This method, because it has the process parameters can be rapid, non-contact and selective detection and other advantages