【摘要】 本文对用度盘作为分度元件的测角仪的误差进行了分析,认为主要是由度盘的长周期误差、短周期误差及测微器误差所构成。对于不同的仪器构成成份不同,有的仪器度盘有短周期误差,有的则没有。本文对用方和根法计算测角仪的误差提出了不同看法,认为用算术和法较合适。文章最后论述了用质数面棱体检定测角仪的准确度的一些问题。更多还原

【Abstract】 In this paper,errors of the goniometer with a graduated disk as the angular scale are analysed and it is concluded that these errors are mainly composed of the long-cycle and short-cycle errors of the graduated disk and the error of the micrometer.But for different instruments,some have short-cycle error and the others have not.As for the combination of the errors of the goniometer,it is considered to be better to use arithmetic sum rather than the root of square sum.Finally,some problems on the measuring accuracy of the goniometer calibrated by the polygon with prime faces are discussed.更多还原