Compare list full


An optical rotary encoder is an angular position sensor. It converts an angular displacement directly into a digital form. There are usually three components in an optical rotary encoder: a light source (an [LED](/web/c/displays-optoelectronics/leds-led-accessories/)), a sensor and a moveable disk.

**How an optical rotary encoder works**

Optical rotary encoders have a shaft mechanically coupled to an input driver. This driver rotates a disc fixed onto it which is marked with a succession of opaque and clear segments.

Light from infrared emitting diodes reaches the infrared receivers through the transparent slits of the rotating disc, creating an analogue signal. The signal is then amplified electronically and converted into digital form. This is then transmitted to the data processor.

**Uses for optical rotary encoders**

Optical rotary encoders make precise digital signals. This makes them a good option where image resolution matters, and explains their use in applications as varied as office equipment (in computer mice and photo copiers) and medical devices.



Shop our range of Optical Rotary Encoders supplies & accessories. Free Next Day Delivery. Browse our latest Optical Rotary Encoders offers.

Optical Rotary Encoders | Angular Sensors | RS

Optical Rotary Encoders

Buy Bourns Optical Rotary Encoders. Browse our latest Bourns Optical Rotary Encoders offers. Fast and hassle free delivery.

Bourns Optical Rotary Encoders | RS

Buy from our selection of Optical Rotary Encoders from Broadcom. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Broadcom Optical Rotary Encoders | RS

Buy Grayhill Optical Rotary Encoders. Browse our latest Grayhill Optical Rotary Encoders offers. Fast and hassle free delivery.

Grayhill Optical Rotary Encoders

Popular Searches