带有测角机构的军用光学仪器,在大多数技术条件里,其测角精度要求都规定有“不包括空回”的内容。这主要是基于以下认识,即认为操作者进行测角操作时,只要遵循“单边对线”的原则,即在测角时不管是正转测量还是反转测量,都遵循从正转方向单边对线的原则,就可在读数中消除空回对测角精度的影响。本文试图通过理论和实例分析,对上述的认识谈谈自己的不同看法。 Military optical instruments with a goniometric mechanism, in most of the technical conditions, require that the angular accuracy requirements include “do not include empty return” content. This is mainly based on the recognition that when an operator performs a goniometric operation, the principle of “unilateral bifurcation” is followed, that is, whether the measurement is forward rotation or reverse rotation during angle measurement follows the principle of unilateral The principle of line, you can eliminate empty readings on the angular accuracy of the impact. This article attempts to talk about my own different views on the above understanding through theoretical and practical analysis.