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What are Encoders?

PCB pos encoders and knobs.

The 411 with RJS.

Question: What are Encoders?

 

An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purpose of standardization, speed or compression.

A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals.   There are two main types of rotary encoder: absolute and incremental. The output of an absolute encoder indicates the current shaft position, making it an angle transducer

An absolute encoder maintains position information when power is removed from the encoder.

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