Photoelectric encoder

Optical encoder (Optical Encoder) commonly known as "speed shuttle", and its appearance like a potentiometer, because there is an external rotation around while at the same press knob, a lot of equipment (such as monitors, oscilloscopes, etc.) use it as a human-computer interaction interface.

Photoelectric encoder principle

     Photoelectric encoder using the diffraction grating principle of displacement - digital conversion, geometric mechanical displacement amount by photoelectric conversion, the output shaft is converted into a digital pulse sensor.

     Common optical encoder from the grating disk, the light emitting element and the light-sensitive elements. Grating is actually a rule engraved with translucent and opaque lines of the disk, the photosensitive element receives flux lines changes in synchronization with the light-transmissive photosensitive element output after waveform shaping into a pulse signal, did not turn around, a pulse output according to changes in pulse, can accurately measure the amount of displacement and control equipment