pull-up resistors

FAQ: What are encoder pull-up resistors, and how do engineers use them?

Thursday, December 10, 2015

To understand pull-up resistors, it helps to first understand how encoder output is generated. Incremental encoders can provide several types of digital output, with the three primary types…

Read More

Magnetic Encoder

FAQ: How do magnetic encoders work?

Friday, November 13, 2015

Encoders, whether rotary or linear, absolute or incremental, typically use one of two measuring principles—optical or magnetic. While optical encoders were, in the past, the primary choice for…

Read More

capacitive encoders

FAQ: What are capacitive encoders and where are they suitable?

Thursday, October 29, 2015

Two types of encoders dominate the general industrial market—optical and magnetic. But capacitive encoders, a relatively new introduction, offer resolution comparable to optical devices, with the ruggedness of…

Read More

Encoder Pulses Per Revolution

FAQ: How do I determine the required pulses per revolution for an encoder application?

Saturday, October 24, 2015

Incremental encoders determine rotary position by generating a specific number of pulses per revolution (PPR) and counting those pulses as the encoder spins. The PPR rating indicates resolution, and…

Read More

rotary encoder

FAQ: What’s the difference between single and multi-turn rotary encoders?

Thursday, October 15, 2015

Absolute rotary encoders output precise position information—even after a power-off condition—by assigning a unique digital value, or “word,” to each shaft position. But in applications where the encoder…

Read More

Resolver vs Encoder

FAQ: Why are so many designers replacing resolvers with encoders?

Friday, October 9, 2015

Resolvers and encoders are both devices that measure the rotary position of a shaft by converting mechanical motion into an electrical signal. Resolvers have a longer history, originally used…

Read More