Magnetic encoders vs. optical encoders
What kind of technology does a rotary encoder use? Your options include magnetoresistance, Hall-effect, Nonius, inductive, or optical for single-turn technology.
The optical encoder uses a light source and photo detector array. The light is blocked by the dark marks on the code disk, while light passes through the clear spots.
Magnetic encoder technology is a fully compatible alternative, and a reliable high-quality solution for all standard applications. While high-performance applications may still require an optical solution because of the accuracy requirements, magnetic encoders are a very good choice for most applications.
So, which is better or more effective? What are the advantages of each kind?
- A great choice for applications that require accuracy and durability
- Noncontact sensing technology for high reliability
- Very high precision from 1˚ to 0.1˚
- Robust design for applications in harsh environments
- Long service life and reduced service times
- Compact design
- Ideal for applications with stringent requirements for accuracy and dynamic machine operations
- Highest accuracies up to 0.01˚
There you have it. High precision magnetic encoders have 1° to 0.1° of accuracy. Optical encoders have an accuracy of <0.01°. They’re both great products, so it all depends on what you are planning to use them for.