How do magnetic encoders work?！

Encoders, whether rotary encoder or linear encoder, absolute or incremental, typically use one of two measuring principles—optical encoder or magnetic encoder. While optical encoders were, in the past, the primary choice for high resolution applications, improvements in magnetic encoder technology now allow them to achieve resolutions down to one micron, competing with optical technology in many applications. Magnetic technology is also, in many ways, more robust than optical technology, making magnetic encoders a popular choice in industrial environments.

Previous：Roundss Incremental Encoder position sensor linear glass scale
Next：Roundss Analog Sensor Linear Guide Systems Incremental optical encoder/digital display/draw wire sen