图示实验装置是为比较检测在自动装配线上工作夹盘所夹持的工作是否处于正常状态而研制的。在定速旋转图筒的180°半圆周上配置20个狭缝,把工件的投影图象从上而下分成20份,通过物镜和聚光镜投影到光电元件上,随着圆筒的旋转,即可对工件的图象进行扫描并把得到的电信号记录到磁带上。磁带由A、B两条磁道构成,首先扫描 The pictorial experimental setup was developed to compare whether a job held by a working chuck on an automated assembly line is in a normal condition. 20 slots are arranged on the 180 ° semi-circle of the constant-speed rotating cylinder, the projected image of the workpiece is divided into 20 parts from top to bottom and projected onto the photovoltaic element through the objective lens and the condenser lens. As the cylinder rotates, that is, The image of the workpiece can be scanned and the resulting electrical signal recorded on a magnetic tape. Tape A, B two tracks, the first scan