Suppose there is n code tracks on code disc,the minimum angle distinguished is 360 / 2n
optical electric angle encoder
Material reference & property of indexing error
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School of mechanical and power engineering/Henan polytechnic university
Chapter Six Angle & Angular Displacement Measurement
Contents 6.1 Overview 6.2 Measurement of a Single Angle 6.3 Measurement of Circular Indexing Error 6.4 Measurement of angular displacement
6.1 Overview
Unit and standard transfer of angle
Natural standard of angle & circle closed principle
Material standard of angle & properties of indexing error
差动式 多齿分
度盘
Material reference & property of indexing error
property of indexing error
Due to the closure of the circle indexing device, the indexing error brought by dividing line error is periodic. That is, the indexing error can be regarded as function f(φ) of angle position φ whose period is 2π.