Feature

How does an encoder work?

Before you can fully understand how an encoder works, you should first understand what an encoder is and what it does.

04/05/2021 15:43:33

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Encoders are used to translate rotary or linear motion into a digital signal. Usually this is for the purpose of monitoring or
controlling motion parameters such as speed, rate, direction, distance, or position.

Some common encoder technologies are mechanical, magnetic, resistive, and optical. Encoders may produce
either incremental or absolute signals. Incremental signals provide a series of high and low waves which indicate movement from one position to the
next.

Absolute encoders, on the other hand, use a unique “word” for each position, meaning that an absolute encoder provides both the indication that
the position has changed and an indication of the absolute position of the encoder.

Visit the British Encoder website to view a wide range of encoders: www.encoder.co.uk

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.