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. 


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Omschrijving Prijs Pulses Per Revolution Encoder Reading Encoder Signal Supply Voltage Shaft Diameter Mounting Hole Diameter Shaft Length Mounting Type Shaft Style Termination Style Maximum Operating Speed Current Rating
RS-stocknr. 878-2753
Fabrikantnummer62AY22060
FabrikantGrayhill
€ 80,00
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - - Panel Mount Flat Cable 100rpm 30 mA @ 5 V dc
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€ 42,43
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- Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector - 25 mA @ 5.25 V dc
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€ 42,978
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100 Incremental Digital Square Wave 5V dc 7.14 mm 0.99mm 22.23mm Bracket Mount Plain Axial PC Pin 3000rpm -
RS-stocknr. 182-5685
FabrikantnummerCJ25-42010
€ 49,55
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5 Incremental Digital Square Wave 5V dc 6.35 mm M17 9.35mm - Round Wire Lead - 20mA
RS-stocknr. 182-5631
FabrikantnummerREC16M25-201
€ 11,74
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25 - Digital Square Wave 5V dc 6 mm M9 16.5mm Through Hole Flat Wire Lead - 30mA
RS-stocknr. 878-0458
Fabrikantnummer62S22-M0-020C
FabrikantGrayhill
€ 55,76
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- Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector - 25 mA @ 5.25 V dc
RS-stocknr. 878-0552
Fabrikantnummer62A15-02-020C
FabrikantGrayhill
€ 39,52
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
RS-stocknr. 182-5627
FabrikantnummerRESW20D-50-201-1
€ 15,67
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50 - Digital Square Wave 5V dc 6 mm M9 12mm - Round Wire Lead - 50mA
RS-stocknr. 182-5690
FabrikantnummerCJ25-82010
€ 53,37
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5 Incremental Digital Square Wave 5V dc 6.35 mm M17 9.35mm - Round Wire Lead - 20mA
RS-stocknr. 878-0432
Fabrikantnummer62AG11-L5-P
FabrikantGrayhill
€ 18,29
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- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA
RS-stocknr. 182-5671
FabrikantnummerJT30-120-C00
€ 89,97
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- Absolute - 12V dc 6 mm - 15mm - Flat Wire Lead - 40mA
RS-stocknr. 878-0515
Fabrikantnummer62C1122-01-060C
FabrikantGrayhill
€ 97,41
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 26.98mm Panel Mount Flat Connector 100rpm 50 mA @ 5 V dc
RS-stocknr. 878-0565
Fabrikantnummer61RS128-080
FabrikantGrayhill
€ 103,42
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128 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS-stocknr. 878-0426
Fabrikantnummer62AG11-L0-060C
FabrikantGrayhill
€ 18,43
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- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector 100rpm 30mA
RS-stocknr. 182-5669
FabrikantnummerJT30-340-500
€ 89,97
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- Absolute - 5V dc 6 mm - 15mm - Flat Wire Lead - 40mA
RS-stocknr. 789-9510
FabrikantnummerENT1J-D28-L00100L
FabrikantBourns
€ 55,83
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100 Incremental Digital Square Wave 5V dc 7.14 mm 0.99mm 22.23mm Bracket Mount Plain Axial PC Pin 3000rpm -
RS-stocknr. 182-5668
FabrikantnummerJT30-340-C00
€ 108,22
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- Absolute - 12V dc 6 mm - 15mm - Flat Wire Lead - 40mA
RS-stocknr. 878-0580
Fabrikantnummer62N22-P
FabrikantGrayhill
€ 98,24
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 26.9mm Panel Mount Flat Pin 100rpm 30 mA @ 5 V dc
RS-stocknr. 134-8198
FabrikantnummerES14A0D-E28-L064N
FabrikantBourns
€ 56,92
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64 Quadrature 2-Bit Quadrature 5V dc 3.18 mm 1.73 mm, 14 mm 22.23mm Bracket Mount Slotted Axial PC Pin 1000rpm 26mA
RS-stocknr. 878-0442
Fabrikantnummer62A15-01-090C
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€ 38,86
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
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