Detail BEI GHM3 Incremental Rotary Encoder
The simplest and most commonly used encoders are incremental rotary encoders, which provide information about the instantaneous position of a rotating shaft. The encoder does this by producing one square wave cycle per increment of shaft movement. This increment, referred to as the resolution of the encoder, is built directly into the internal hardware of the device on the code disc. By rotating this code disc in the path of a light source, it acts like a shutter to alternately shut off or transmit the light to a photodetector. And encoder resolution of 360 means that 360 square wave cycles are produced in one complete rotation of the shaft. By counting the number of cycles, you can tell the position of the shaft, relative to its starting position. Model GHM3 Incremental Rotary Encoder This 30mm size shafted rotary encoder offers high accuracy in a robust, compact package. http: / / www.beisensors.com/ incremental-optical-rotary-encoders.html
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