701A型孔径测量仪具有精度高,稳定性好等优点,全国各省、市、自治区计量部门使用此仪器的单位较多。这里,介绍一种简单易行的调整合光点的方法,其优点不需要借助直角棱镜便可调好,步骤如下: 1.将带筋工作台调水平(调底脚螺丝),放上第一块量块。 2.调整灯泡上的螺钉直到影屏上看到明显的十字线为止。再移动灯泡位置,使投影屏获得均匀照明。 3.从投影屏上可看到针孔光点的象,若不重合,打开盖24(参见说明书)调整参考镜上的螺钉4,调时应特别细心,勿使压簧受扭力(压簧只有0.06mm),边调边看(光点合至4/5以上为好。) 4.调整结束,按说明书上的步骤找干涉 701A-type aperture measuring instrument with high precision, good stability, etc., the provinces, municipalities and autonomous regions measuring unit to use this instrument more units. Here, a simple and easy way to adjust the light spots is introduced. The advantages of this method are not need to be adjusted by means of rectangular prism. The steps are as follows: 1. Adjust the ribbed workbench to the level A piece of block. 2. Adjust the screw on the lamp until the crosshairs are visible on the screen. Move the bulb again to get a uniform illumination of the projection screen. 3. From the projection screen, you can see the image of the pinhole point. If not, open the cover 24 (refer to the manual) and adjust the screw 4 on the reference mirror. The adjustment should be done with special care. Only 0.06mm), while the side of the tune to see (light point to 4/5 as well.) 4. Adjustment is completed, follow the instructions on the steps to find interference