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一、硒板的识别硒板质量的好坏,是静电摄影中起决定作用的因素。所谓好的硒板,应该是暗阻很大,充上电荷后久不消失,光照后电阻急骤下降,电荷很快消失。目前国内尚未见到硒板质量鉴定的数据。几年来我们使用一些土办法对硒板进行识别:(一)肉眼检查,一块好的硒板在光线明亮的室内(注意不用强光)表面平整,有光泽镜面,不应有多个喷点,不应有发红的红硒、黯灰色的灰硒存在。
First, the recognition of selenium plate Selenium quality is good or bad, is the decisive factor in the role of electrostatic photography. The so-called good selenium board, it should be a great dark resistance, after charging for a long time does not disappear, light resistance sharp decline, the charge disappears quickly. At present, we have not yet seen the quality of selenium plate identification data. Over the past few years we use some soil method to identify the selenium board: (A) the naked eye examination, a good selenium board in a bright light indoor (pay attention not glare) The surface is smooth, shiny mirror, there should be no more than one spray point, There should be no red red selenium, dark gray gray selenium exists.