一、概述本控制系统是应用8031单片机控制步进电机驱动自动比色计的比色皿专用架。其原理是:钨丝灯发射的光经一斩光盘变成时有时无的脉冲光,再经两块透镜组成的光学系统,将光聚焦在比色皿上,在两块透镜之间有一滤光片,所以照射在比色皿上的光是聚焦后的单色脉冲光,此单色光透过比色皿时,被待测溶液吸收掉一部分,然后投照在光电检测器上。它将透过比色皿的光信号的 First, an overview of the control system is the application of 8031 ​​MCU stepper motor driven automatic colorimeter special cuvette. The principle is: the light emitted by the incandescent lamp into a chopped disc sometimes without pulsed light, and then by the two lenses of the optical system, the light focused on the cuvette between the two lenses have a filter Therefore, the light irradiated on the cuvette is focused monochromatic pulsed light. When the monochromatic light passes through the cuvette, it absorbs a part of the solution to be measured and is then projected onto the photodetector. It will pass the light signal of the cuvette