一、概述抖动测量仪(以后简称抖动仪)是电影机、录音机、录像机等磁带机及电唱机的抖动的测量装置。北京无线电二厂生产的 DD2型抖动仪,填补了我国在这方面的空白,为电影、电视及广播录音事业作出了应有的贡献。但是,DD2也存在一些问题,如性能不稳定、台差大、测量精度不高等缺点。 First, an overview Jitter measuring instrument (hereinafter referred to as jitter) is a movie machine, tape recorders, video recorders and tape recorders and jitter measuring device. The DD2-type jitter meter produced by Beijing No.2 Radio Factory has filled the gap in this area in our country and made its due contribution to the film, television and radio recording businesses. However, DD2 also has some problems, such as unstable performance, large differences and poor measurement accuracy.