光电轴角编码器,又称光电角位置传感器,是一种集光、机、电为一体的数字测角装置。由于它结构简单,分辨率高,精度高,因此已被广泛应用在精密角位置的测量、数控及数显系统中。本文针对光电轴角编码器的类型介绍了选型原则。 Optical axis encoder, also known as optical angle position sensor, is a collection of light, machine, electricity as one of the digital goniometry. Because of its simple structure, high resolution and high precision, it has been widely used in the measurement of precision angular position, numerical control and digital display system. In this paper, the selection principle of photoelectric shaft encoder is introduced.