工具显微镜类仪器一般是通过中央显微镜瞄准工件影像进行测量的。中央显微镜的瞄准系统必须设置分划板,才能实现对被测工件的瞄准测量。常见的分划板有:米字线,十字线,双夹线或其它形式的分划板等等。日常的测试工作中,首先根据不同的测量项目选择合理的分划板,即更换相应的瞄准目镜头,然后再对被测工件影像进行瞄准测量。 Tools Microscopes Instruments are typically measured with a central microscope aimed at the workpiece image. Central aiming system must be set reticle reticle, in order to achieve the aiming measurement of the workpiece under test. Common reticle: rice word line, cross line, double clip or other forms of reticle and so on. Routine test work, first of all, according to different measurement items to select a reasonable reticle, that is, to replace the aiming eyepiece, and then measured the workpiece image aiming at the measurement.