Photoelectric rotary encoder, which is also called photoelectric angel position sensor, is a kind of digital angle measuring device combining optics, mechanics and electronics.
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。
Incremental optical electric axial Angle encoder usually adopts zero position grating providing absolute zero position in order to prevent from data fault during electricity failure suddenly.
为了防止突然断电时造成数据错误，增量式光电轴角编码器通常采用零位光栅提供绝对零位信号。
Incremental optical electric axial Angle encoder usually adopts zero position grating providing absolute zero position in order to prevent from data fault during electricity failure suddenly.
为了防止突然断电时造成数据错误，增量式光电轴角编码器通常采用零位光栅提供绝对零位信号。
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