Rotary and linear optical encoders are common in position and motion sensing. Here, a disc or plate containing opaque and transparent segments passes between an LED and detector to interrupt a light ...

Rotary encoders are electromechanical devices used for sensing in myriad applications—on motors paired with drives and automated machinery for everything from consumer electronics, elevators, and ...

Is it really possible to build a rotary encoder out of a flattened tin can and a couple of photodetectors? Sure it’s possible, but what kind of resolution are you going to get from such a contraption?

SCHAUMBURG, IL--(Marketwired - June 16, 2015) - NUMERIK JENA's Kit R rotary optical encoder is ideally suited for those motion feedback applications where installation space is limited. The scanning ...

No integral electronics can be found within the encoder housing of a novel rotary incremental optical encoder. Micronor's entirely passive MR312 ZapFree encoder has an all-optical design. Thanks to ...

This article is part of the Ideas for Design Series: Vol. 3, No. 8. In many applications, accurately sensing the position of an electrically controlled mechanical device such as a motor is critical.