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对于单面读数及类似读数原理的测角仪器,其度盘偏心是造成示值超差的主要原因。而能否定量地确定度盘的偏心位置,又是调整度盘偏心的关键。目前国内对确定与调整度盘偏心位置的问题,资料〔1〕作了探讨。本文认为其结论是正确的,但是:(一)该文只分析了检定值与偏心位置的八种特殊关系,没给出任意情况的通用关系式,这样就会使判断烦琐,容易搞错;(二)该文只给出使度盘相对于回转中心的方位,没有偏移距离的具体数量;(三)该文只分
For single-sided readings and similar reading principle goniometer, the dial eccentricity is caused by the main reason for the indication of tolerance. The ability to quantitatively determine the eccentric disc position, but also the key to adjust the disc eccentricity. At present, the problem of determining and adjusting the eccentric position of the dial is discussed in [1]. This paper holds that the conclusion is correct, however: (1) The article only analyzes eight special relations between the test value and the eccentric position, and does not give a universal relation in any case, which will make the judgment cumbersome and error-prone. (B) This article gives only the exact number of degrees that make the dial relative to the swing center, with no offset distance; (c)