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. 167-3613
FabrikantnummerENA1J-B28-L00128L
FabrikantBourns
€ 33,019
Each (In a Tray of 42)
Aantal stuks
128 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm -
RS-stocknr. 263-2889
FabrikantnummerENA1J-B28-L00128L
FabrikantBourns
€ 45,78
Each
Aantal stuks
128 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm 26mA
RS-stocknr. 878-0521
Fabrikantnummer25LB22-H
FabrikantGrayhill
€ 6,11
Each
Aantal stuks
- 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-stocknr. 878-0482
Fabrikantnummer26GSD22-01-1-AJS
FabrikantGrayhill
€ 30,27
Each
Aantal stuks
- Quadrature BCD Output, Gray Code, Hexadecimal Code, Octal Code, Quadrature Code, 4 Bit Binary - 3.18 mm - 15.88mm Panel Mount Flat - - -
RS-stocknr. 167-3612
FabrikantnummerENS1J-B28-L00256L
FabrikantBourns
€ 44,577
Each (In a Tray of 42)
Aantal stuks
256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm 26mA
RS-stocknr. 164-2633
FabrikantnummerENS1J-B28-L00256L
FabrikantBourns
€ 66,03
Each
Aantal stuks
256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm -
RS-stocknr. 178-3264
FabrikantnummerHEDS-6140#B09
FabrikantBroadcom
€ 23,955
Each (In a Box of 100)
Aantal stuks
1000 Incremental - - 0.5 in - - Through Hole - - 30000rpm -
RS-stocknr. 178-3141
FabrikantnummerHEDS-5120#A11
FabrikantBroadcom
€ 13,032
Each (In a Tray of 50)
Aantal stuks
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-stocknr. 796-7830
FabrikantnummerHEDS-5120#A11
FabrikantBroadcom
€ 16,05
Each
Aantal stuks
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
RS-stocknr. 162-2507
FabrikantnummerENA1J-B28-L00064L
FabrikantBourns
€ 33,835
Each (In a Tray of 42)
Aantal stuks
64 - Digital Square Wave 5V dc 6.35 mm - 22.23mm Bracket Mount Round - 3000rpm 26mA
RS-stocknr. 263-2873
FabrikantnummerENA1J-B28-L00064L
FabrikantBourns
€ 45,98
Each
Aantal stuks
64 - Digital Square Wave 5V dc 6.35 mm - 22.23mm Bracket Mount Round - 3000rpm -
RS-stocknr. 789-9497
FabrikantnummerEM14R1D-R20-L032N
FabrikantBourns
€ 26,88
Each
Aantal stuks
32 Incremental 2 Channel Quadrature 5V dc 6 mm 1.73mm 20mm Through Hole Slotted Axial PC Pin 120rpm -
RS-stocknr. 167-5308
FabrikantnummerEM14R1D-R20-L032N
FabrikantBourns
€ 21,599
Each (In a Tube of 25)
Aantal stuks
32 Incremental 2 Channel Quadrature 5V dc 6 mm 1.73mm 20mm Through Hole Slotted Axial PC Pin 120rpm -
RS-stocknr. 878-0619
Fabrikantnummer62A22-02-060C
FabrikantGrayhill
€ 31,81
Each
Aantal stuks
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
RS-stocknr. 878-0530
Fabrikantnummer25LB22-G
FabrikantGrayhill
€ 5,77
Each
Aantal stuks
- Absolute Gray 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-stocknr. 878-0622
Fabrikantnummer61KS64-020
FabrikantGrayhill
€ 102,54
Each
Aantal stuks
64 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS-stocknr. 878-0537
Fabrikantnummer61R128
FabrikantGrayhill
€ 89,37
Each
Aantal stuks
128 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS-stocknr. 878-0625
Fabrikantnummer61K64
FabrikantGrayhill
€ 89,37
Each
Aantal stuks
64 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS-stocknr. 878-0436
Fabrikantnummer62AG11-L0-P
FabrikantGrayhill
€ 20,61
Each
Aantal stuks
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA
RS-stocknr. 878-0448
Fabrikantnummer62AG22-L0-P
FabrikantGrayhill
€ 20,60
Each
Aantal stuks
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA