Roundss photoelectric encoder！

Photoelectric encoder, a photoelectric conversion by a mechanical displacement of the output shaft of the geometry into a pulse or digital sensors. This is currently the most widely used sensors, optical encoder is a grating disk and the photo detector device component. Grating disk is partially a certain diameter circular plate, etc. opening of a number of rectangular holes. Since the photoelectric encoder coaxial with the motor, the motor is rotated, with the grating disk and the motor rotation speed, number of pulse signals output by the detection means detecting light-emitting diodes and other electronic components by calculating the second photoelectric encoder output pulse number on to reflect the current speed of the motor. In addition, to determine the direction of rotation encoder also provides a phase difference

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