Optical Rotary Encoders

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), 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.

188 Products showing for Optical Rotary Encoders

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Hengstler 30V dc 1000 Pulse Optical Encoder with a 12 mm Round Shaft, Flange Mount, Cable RS stock no.: 280-4429 Mfr. Part No.: 0566033 Datasheets: R 17 048,73 Each	Hengstler	1000	Absolute	-	Binary	30V dc	12 mm	-	-	-	Flange Mount	Round	Cable	-
Baumer 4.75 → 30V dc 1024 Pulse Optical Encoder with a 12 mm Hollow Shaft, Flange Mount, Connector RS stock no.: 269-1705 Mfr. Part No.: EIL580-TT12.5EQ.01024.A Datasheets: R 5 936,38 Each	Baumer	1024	Incremental	1024	Digital	4.75 → 30V dc	12 mm	-	-	-	Flange Mount	Hollow	Connector	<= 6000rpm
NIDEC COPAL ELECTRONICS GMBH 24V dc 360 Pulse Optical Encoder with a 4 mm RS stock no.: 244-4102 Mfr. Part No.: RE30E-360-213-1 Datasheets: R 1 386,99 Each	NIDEC COPAL ELECTRONICS GMBH	360	Incremental	-	Digital Square Wave	24V dc	4 mm	-	-	-	-	-	-	-
Broadcom 5V dc Optical Encoder Hollow Shaft RS stock no.: 178-3119 Mfr. Part No.: HEDS-5500#A12 Datasheets: R 914,108 Each (In a Tray of 25)	Broadcom	-	Incremental	500	2 Channel Quadrature	5V dc	-	-	-	-	-	Hollow	-	30000rpm
Grayhill 5V dc Optical Encoder with a 6.35 mm Flat Shaft, Surface Mount, Connector RS stock no.: 878-0619 Mfr. Part No.: 62A22-02-060C Datasheets: R 865,27 Each	Grayhill	-	Quadrature	-	2-Bit Quadrature	5V dc	6.35 mm	-	-	17.44mm	Surface Mount	Flat	Connector	100rpm
Bourns 5V dc 256 Pulse Optical Encoder with a 6.35 mm Round Shaft, Bracket Mount RS stock no.: 164-2633 Mfr. Part No.: ENS1J-B28-L00256L Datasheets: R 1 171,85 Each	Bourns	256	Incremental	-	Digital Square Wave	5V dc	6.35 mm	-	9.5mm	22.23mm	Bracket Mount	Round	-	3000rpm
Broadcom 1000 Pulse Code Wheel with a 0.5 in, Through Hole RS stock no.: 796-7868 Mfr. Part No.: HEDS-6140#B09 Datasheets: R 957,59 Each	Broadcom	1000	Incremental	-	-	-	0.5 in	-	-	-	Through Hole	-	-	30000rpm
Baumer 4.75 → 30V dc 500 Pulse Optical Encoder with a 10 mm Solid Shaft, Flange Mount, Connector RS stock no.: 269-1696 Mfr. Part No.: EIL580-SC10.5EQ.00500.A Datasheets: R 6 213,30 Each	Baumer	500	Incremental	500	Digital	4.75 → 30V dc	10 mm	-	-	20mm	Flange Mount	Solid	Connector	<= 12000rpm
Grayhill Mechanical Rotary Encoder with a 6.35 mm Flat Shaft, Panel Mount RS stock no.: 878-0521 Mfr. Part No.: 25LB22-H Datasheets: R 354,47 Each	Grayhill	-	2 bit Quadrature	-	Hex Code	-	6.35 mm	-	-	19.05mm	Panel Mount	Flat	-	-
Broadcom 5V dc Optical Encoder with a 6 mm Hollow Shaft RS stock no.: 818-8830 Mfr. Part No.: HEDS-5500#A12 Datasheets: R 1 128,50 Each	Broadcom	-	Incremental	500	2 Channel Quadrature	5V dc	6 mm	-	-	-	-	Hollow	-	30000rpm
Broadcom 5V dc Optical Encoder with a 1/4 in Hollow Shaft RS stock no.: 205-6869 Mfr. Part No.: HEDS-5500#A06 Datasheets: R 1 216,24 Each	Broadcom	500	Incremental	500	2 Channel Quadrature	5V dc	1/4 in	-	-	-	-	Hollow	-	30000rpm
Nidec Components 5 - 12V dc 1024 Pulse Optical Encoder with a 4 mm Plain Shaft, Panel Mount, Cable RS stock no.: 202-0443 Mfr. Part No.: RE30E-1024-213-1 Datasheets: R 1 330,17 Each	Nidec Components	1024	Incremental	-	Digital Square Wave	5 - 12V dc	4 mm	-	-	-	Panel Mount	Plain	Cable	-
NIDEC COPAL ELECTRONICS GMBH 24V dc 100 Pulse Optical Encoder with a 4 mm RS stock no.: 244-4094 Mfr. Part No.: RE30E-100-213-1 Datasheets: R 1 439,91 Each	NIDEC COPAL ELECTRONICS GMBH	100	Incremental	-	Digital Square Wave	24V dc	4 mm	-	-	-	-	-	-	-
Grayhill Optical Encoder with a 3.18 mm Flat Shaft, Panel Mount RS stock no.: 878-0482 Mfr. Part No.: 26GSD22-01-1-AJS Datasheets: R 663,81 Each	Grayhill	-	Quadrature	-	4 Bit Binary, BCD Output, Gray Code, Hexadecimal Code, Octal Code, Quadrature Code	-	3.18 mm	-	-	15.88mm	Panel Mount	Flat	-	-
Baumer 8 → 30V dc 1024 Pulse Optical Encoder with a 10 mm Solid Shaft, Flange Mount, Connector RS stock no.: 269-1691 Mfr. Part No.: EIL580-SC10.5EN.01024.A Datasheets: R 4 529,41 Each	Baumer	1024	Incremental	1024	Digital	8 → 30V dc	10 mm	-	-	20mm	Flange Mount	Solid	Connector	<= 12000rpm
Grayhill 5V dc Optical Encoder with a 6.35 mm Flat Shaft, Panel Mount, Cable RS stock no.: 878-0616 Mfr. Part No.: 61B22-01-02-060 Datasheets: R 1 526,40 Each	Grayhill	-	Quadrature	-	2-Bit Quadrature	5V dc	6.35 mm	-	-	17.4mm	Panel Mount	Flat	Cable	16.6 rpm @ 30 mS
Baumer 8 → 30V dc 2500 Pulse Optical Encoder with a 10 mm Solid Shaft, Flange Mount, Connector RS stock no.: 269-1693 Mfr. Part No.: EIL580-SC10.5EN.02500.A Datasheets: R 5 732,14 Each	Baumer	2500	Incremental	2500	Digital	8 → 30V dc	10 mm	-	-	20mm	Flange Mount	Solid	Connector	<= 12000rpm
Baumer 8 → 30V dc 1000 Pulse Optical Encoder with a 12 mm Hollow Shaft, Flange Mount, Connector RS stock no.: 269-1698 Mfr. Part No.: EIL580-TT12.5EN.01000.A Datasheets: R 5 417,76 Each	Baumer	1000	Incremental	1000	Digital	8 → 30V dc	12 mm	-	-	-	Flange Mount	Hollow	Connector	<= 6000rpm
Baumer 8 → 30V dc 5000 Pulse Optical Encoder with a 12 mm Hollow Shaft, Flange Mount, Connector RS stock no.: 269-1700 Mfr. Part No.: EIL580-TT12.5EN.05000.A Datasheets: R 6 623,78 Each	Baumer	5000	Incremental	5000	Digital	8 → 30V dc	12 mm	-	-	-	Flange Mount	Hollow	Connector	<= 6000rpm
Bourns 5V dc 12 bit Pulse Optical Encoder with a 22.225 mm Flat Shaft RS stock no.: 213-1688 Mfr. Part No.: DMS22B5A1CAFL336N Datasheets: R 1 051,37 Each	Bourns	12 bit	-	-	-	5V dc	22.225 mm	-	-	-	-	Flat	-	-

Optical Rotary Encoders

188 Products showing for Optical Rotary Encoders

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