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DⅠ-90°和DⅡ-180°直角棱镜是最常见的两种棱镜。在加工过程中和加工完成后都要检验其角度误差。目前工厂常用由自准直望远镜和承物台组成的仪器(比较测角仪和测角仪)进行检验。检查方法分为比较测量法和直接测量法两类。比较测量法的测量原理是先用标准棱镜确定仪器承物台和自准直望远镜的相对位置,然后取下标准棱镜,放上被测棱镜,在不破坏自准望远镜和承物台相对位置的前提下,调整被
D Ⅰ -90 ° and D Ⅱ-180 ° right-angle prism is the most common of the two prisms. In the processing and processing are completed to verify the angle error. At present the factory commonly used by the self-alignment telescope and the composition of the instrument (compare goniometer and goniometer) for testing. Inspection methods are divided into comparative measurement and direct measurement of two categories. Comparison measurement method of measurement is the first standard prism to determine the relative position of the instrument bearing platform and self-collimation telescope, and then remove the standard prism, put the prism under test, without prejudice to the telescope and the relative position of the stage Under the premise, the adjustment is