A coding switch is an electronic component that generates binary/decimal coded signals through mechanical or optoelectronic means. Primarily used for equipment parameter adjustment, position detection, and direction recognition, its core principle relies on contact point closure/break or optoelectronic conversion to produce pulse sequences. Functional control is achieved by detecting phase differences.
Rotary encoders are highly favored by designers for their high resolution, low torque requirements, minimal energy consumption, stable performance, and extended reliable service life. They find extensive application in electronic equipment, robotic control systems, and instrumentation.
