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近年来对步进式光电传感器〔或称作模拟—脉冲(A—I)传感器〕的动态研究受到了注意。对于以莫尔效应(Moire-Effekt)为基础的A—I 传感器,人们把限制这类仪器分辩率的参数分为三大部份:一步进式基准元件的制造精度一安装位置不准确引起的误差一接收系统的误差就传感器的输出而言,与莫尔效应有关的误差可归结为下述两种,即相位误差和振幅误差。振幅误差对传感器的精度特性影响很小,并且易于补偿。这样,除基准元件之外,
In recent years, attention has been paid to the dynamic study of a step-and-step photoelectric sensor [also referred to as an analog-pulse (A-I) sensor]. For Moire-Effekt-based A-I sensors, the parameters that limit the resolution of such instruments are divided into three major components: the manufacturing precision of a step-by-step reference component; the inaccuracy of the mounting position Errors - Errors in Receiving Systems In terms of the output of the sensor, the errors associated with the moiré effect can be attributed to the two following: phase error and amplitude error. The amplitude error has little effect on the accuracy characteristics of the sensor and is easily compensated. In this way, in addition to the reference element,