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一、前言相位计又称比相器,它是用来测量两列频率相同的正弦电信号之间相位差值的仪器。我们从一九六六年开始使用相位计QSL-φI,用于动态检测编码器,一九七○年将相位计用于一台二进制的码盘和光栅度盘光电检验仪上,之后又购买了两台相位计(PX-1型和BX-13型),七八年又研制了一台全晶体管的相位计。从七○年到现在,检测了上千块码盘和光栅盘,积累了一些经验。光电检验仪是属于比较测量的一种仪器(示意图见图1),它利用一块高精度的“标准”光栅盘安装在一根精密主轴上,在“标准盘”的圆周上按适当的间隔布置了十个莫尔条
First, the preface Phase meter, also known as the phase comparator, which is used to measure the two columns of the same frequency sinusoidal electrical signal phase difference between the instruments. We have been using the phase meter QSL-φI since 1966 for dynamic detection of encoders. In 1970, the phase meter was used on a binary encoder and a grating disc photometer and later purchased Two phase meter (PX-1 and BX-13 type), in 1978 and developed a full transistor phase meter. From 1970 to the present, testing thousands of code discs and grating discs have accumulated some experience. Photovoltaic tester is a kind of comparative measurement of the instrument (schematic diagram shown in Figure 1), which uses a high-precision “standard” grating disk mounted on a precision spindle, in the “standard disk” circle at an appropriate interval Ten moles