Whether incremental or absolute, magnetic or optical, rotary encoders track motor shaft rotation to generate digital position and motion information. Their use proliferates in industrial and ...

Optical encoders are critical components in systems with rotating shafts or parts. Optical rotary encoders are the most widely used way to transform mechanical rotary motion into electrical signals.

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?

My previous blog Encoders Know All the Angles introduced encoders that provide information about rotary positions. A diagram illustrated the phase relationship of signals from an incremental encoder.

The RESM encoder features a large diameter, low-profile stainless steel ring that mounts directly to the machine shaft, avoiding coupling losses, oscillation, shaft torsion and other hysteresis errors ...

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 ...

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 ...

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.

In any application using motors for automation, there is a need to ensure accurate control of the motor. To make this possible, the position and speed of the rotor in the motor, which is usually ...