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近年来,随着我国社会主义革命和社会主义建设的迅速发展在精密机械,国防工业以及仪器仪表制造业中,对光学度盘的需要量越来越大,对精密度要求也越来越高。从长远来看光学度盘也不可能完全被圆光栅,电磁分度,码盘,感应盘等新技术所代替,因此对光学度盘检验工作的研究,使其更好地为生产服务,这是当前计量工作的任务之一。
In recent years, with the rapid development of the socialist revolution and socialist construction in our country, the demand for optical discs has become greater and greater in precision machinery, defense industry and instrumentation manufacturing industry, and the requirements for precision have also become higher and higher . In the long run, optical discs can not be completely replaced by new technologies such as circular gratings, magnetic indexing, code discs, and induction discs. Therefore, the study of optical disc inspection will make it better for production, which It is one of the tasks of current measurement work.