本文介绍了一种检测小直径粗线条光棚盘的仪器。该仪器采用了高精度空气静压气浮轴承,以光栅莫尔条纹作为分度基准,用多个硅光电池进行光电转换,用对径双头读数器拾取被测信号,用双比相电路处理相号。记录器给出误差曲线,并以面板表数字显示误差数值。仪器体积小,精度高,使用方便,工作效率高。 This article describes an instrument for detecting small-diameter thick-line light-shedding discs. The instrument uses a high-precision air bearing air flotation, the grating Moiré fringes as the indexing, with a plurality of silicon photovoltaic cells for photoelectric conversion, with the diameter of the double-headed reader to pick up the signal under test, with dual-phase circuit processing Phase number. The recorder gives the error curve and displays the error value as a panel meter number. Instrument size is small, high precision, easy to use, high efficiency.