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为了提高大型工具显微镜(后简称大工显)的测量精度和效率,我们在上海光学仪器厂60年代生产的用千分尺读数的大工显上安装了长光栅数字显示读数装置。图1为长光栅读数装置的安装位置图。长光栅读数头装在工作台下面,纵横各一个,主光栅尺固定在机上。测量床时,安装在读数头内的指示光栅随工作台一起移动,于是出现明暗交变的莫尔条纹投射到
In order to improve the measuring accuracy and efficiency of the large tool microscope (hereinafter referred to as the “large scale display”), we installed the long grating digital display reading device in the large scale with the micrometer readings produced by Shanghai Optical Instrument Factory in the 1960s. Figure 1 is a long raster reading device installation location map. Long grating reading head mounted on the table below, a vertical and horizontal, the main grating fixed in the machine. When measuring the bed, the indication grating installed in the reading head moves along with the workbench, so that the moiré stripes with alternating light and dark are projected to