一、概述在多面棱体的检定方法中,排列常角法是一种较好的方法,其测量方法如图1所示。测量时,不需高精度的角度基准或测角仪器,仅用两台自准直仪Z_1、Z_2按被检棱体的工作角φ_(12)、φ_(13)、……φ_(1n)。组成相应的常值角度β_2、β_3、……β_n,每个常角依次与被检棱体各相邻工作面的各个中心角相比较。利用圆分度闭 I. Overview In the multi-faceted prism test method, the arrangement of regular angle method is a better method, the measurement method shown in Figure 1. Measurement without the need for high-precision angle or angle measurement instrument, only two self-collimator Z_1, Z_2 according to the working prism was seized angle φ_ (12), φ_ (13), ...... φ_ (1n) . Compose the corresponding constant angle β_2, β_3, ... β_n, and each of the constant angles is compared with each center angle of each adjacent working face of the object under test. Use circular indexing closed