Principles and Applications Of Rotary Encoder！

Principles and Applications Encoder

     The encoder is an angular displacement into a series of electrical digital pulses rotary sensor, these pulses can be used to control the angular displacement, if the encoder combined with the rack or auger together, but also to control the linear displacement.
     Converting the angular displacement encoder using a photoelectric scanning principle. Reading system is based on the rotation of the radial indexing plate, the indexing plate is composed of alternating light transmissive window and opaque window configuration. This whole system is irradiated with an infrared light source vertically, so the dish and put the light image projected onto the surface of the receiver, the receiver is covered with a grating, said collimator device, and it has a disc the same window. The receiver's job is to feel the light generated by the change in rotation of the disc, and then converts the light into a corresponding change in the electrical changes.

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