Magnetic vs. Optical Engines
Optical vs. Magnetic: How to Pick the Right Encoder Engine, Consider factors like resolution, environmental conditions, magnetic noise, and budget when choosing the best sensing technology for your application, At the heart of every encoder lies the encoder engine that converts motion into a signal that can be translated by external electronics into speed or position. Most encoders operate based on either optical or magnetic sensing. Each of the two types of encoder engines has its own set of benefits and limitations. In general, optical encoders are good choices for applications requiring high resolution and/or low cost, while magnetic encoders are the best choice for harsh environments.
