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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Beskrivning Pris 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-artikelnummer 178-3141
Tillv. art.nrHEDS-5120#A11
VarumärkeBroadcom
116,799 kr
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500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-artikelnummer 796-7830
Tillv. art.nrHEDS-5120#A11
VarumärkeBroadcom
169,27 kr
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500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-artikelnummer 263-2889
Tillv. art.nrENA1J-B28-L00128L
VarumärkeBourns
441,72 kr
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128 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm 26mA
RS-artikelnummer 162-2596
Tillv. art.nrEM14A1D-C24-L032N
VarumärkeBourns
219,464 kr
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32 Incremental 2 Channel Quadrature 5V dc 3.17 mm 1.73mm 19.05mm Through Hole Flat Axial PC Pin 120rpm -
RS-artikelnummer 789-9488
Tillv. art.nrEM14A1D-C24-L032N
VarumärkeBourns
272,98 kr
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32 Incremental 2 Channel Quadrature 5V dc 3.17 mm 1.73mm 19.05mm Through Hole Flat Axial PC Pin 120rpm -
RS-artikelnummer 167-3613
Tillv. art.nrENA1J-B28-L00128L
VarumärkeBourns
331,82 kr
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128 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm -
RS-artikelnummer 878-0521
Tillv. art.nr25LB22-H
VarumärkeGrayhill
63,18 kr
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- 2 bit Quadrature Hex Code - 6.35 mm - 19.05mm Panel Mount Flat - - 1.5 mA @ 115 V ac, 150 mA @ 14 V dc, 250 mA @ 28 V dc
RS-artikelnummer 878-0451
Tillv. art.nr61C11-01-08-01
VarumärkeGrayhill
444,83 kr
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.45mm Panel Mount Flat PC Pin 16.6 rpm @ 30 mS 30 mA @ 5 V dc
RS-artikelnummer 167-3612
Tillv. art.nrENS1J-B28-L00256L
VarumärkeBourns
438,793 kr
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256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm 26mA
RS-artikelnummer 178-3142
Tillv. art.nrHEDS-5140#A11
VarumärkeBroadcom
117,098 kr
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500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-artikelnummer 878-0622
Tillv. art.nr61KS64-020
VarumärkeGrayhill
1 060,26 kr
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64 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS-artikelnummer 878-0454
Tillv. art.nr26GSD45-01-1-AJS
VarumärkeGrayhill
290,76 kr
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- Quadrature BCD Output, Gray Code, Hexadecimal Code, Octal Code, Quadrature Code, 4 Bit Binary - 3.18 mm - 15.88mm Panel Mount Flat - - -
RS-artikelnummer 796-7868
Tillv. art.nrHEDS-6140#B09
VarumärkeBroadcom
280,21 kr
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1000 Incremental - - 0.5 in - - Through Hole - - 30000rpm -
RS-artikelnummer 796-7834
Tillv. art.nrHEDS-5140#A11
VarumärkeBroadcom
144,14 kr
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500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-artikelnummer 178-3264
Tillv. art.nrHEDS-6140#B09
VarumärkeBroadcom
247,697 kr
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1000 Incremental - - 0.5 in - - Through Hole - - 30000rpm -
RS-artikelnummer 164-2633
Tillv. art.nrENS1J-B28-L00256L
VarumärkeBourns
637,15 kr
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256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm -
RS-artikelnummer 878-0436
Tillv. art.nr62AG11-L0-P
VarumärkeGrayhill
213,11 kr
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- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA
RS-artikelnummer 878-0561
Tillv. art.nr60A18-4-020C
VarumärkeGrayhill
651,73 kr
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- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 14.73mm Panel Mount Flat Connector - 5 (Joystick) mA, 20 mA @ 5 V dc (Rotary)
RS-artikelnummer 878-0439
Tillv. art.nr62AG22-L0-060C
VarumärkeGrayhill
210,21 kr
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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-artikelnummer 878-0565
Tillv. art.nr61RS128-080
VarumärkeGrayhill
1 069,36 kr
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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
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