1.引言自动生产和包装系统的发展迫切需要自动测试和检验系统。在一个工序中,如果产品的装配发生在几秒钟之内,即使部件的不合格率很低,也将由于经常的停顿而会造成不能允许的总停机时间。此外,通常需要用人来排除故障,这还要消耗时间。解决的办法是对供应组装线上的全部零件都要经过检验。在许多应用中,产品的检验不能使用接触 1. INTRODUCTION The development of automatic production and packaging systems urgently requires automatic test and inspection systems. In one operation, if the assembly of the product occurs within a few seconds, even with a low failure rate of the part, the total downtime that can not be tolerated due to frequent pause will be caused. In addition, it usually takes people to troubleshoot, which also takes time. The solution is to have all the parts on the supply assembly line tested. In many applications, product inspection can not be used for contact