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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Description Price 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 Stock No. 878-0464
Mfr. Part No.62S22-M5-050C
BrandGrayhill
kr 423,03
Each
Units
- 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 Stock No. 878-0537
Mfr. Part No.61R128
BrandGrayhill
kr 891,02
Each
Units
128 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS Stock No. 878-0530
Mfr. Part No.25LB22-G
BrandGrayhill
kr 57,53
Each
Units
- 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 Stock No. 878-0580
Mfr. Part No.62N22-P
BrandGrayhill
kr 979,45
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 26.9mm Panel Mount Flat Pin 100rpm 30 mA @ 5 V dc
RS Stock No. 878-0583
Mfr. Part No.62N30-P
BrandGrayhill
kr 979,45
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 26.9mm Panel Mount Flat Pin 100rpm 30 mA @ 5 V dc
RS Stock No. 878-0561
Mfr. Part No.60A18-4-020C
BrandGrayhill
kr 628,41
Each
Units
- 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 Stock No. 878-0423
Mfr. Part No.62AG11-L5-060C
BrandGrayhill
kr 186,44
Each
Units
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector 100rpm 30mA
RS Stock No. 878-0587
Mfr. Part No.62R30-01-P
BrandGrayhill
kr 940,87
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.45mm Panel Mount Flat Pin 100rpm 30 mA @ 5 V dc
RS Stock No. 878-0543
Mfr. Part No.62A11-02-180S
BrandGrayhill
kr 629,71
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Stripped Cable 100rpm 30mA
RS Stock No. 878-0482
Mfr. Part No.26GSD22-01-1-AJS
BrandGrayhill
kr 295,91
Each
Units
- Quadrature BCD Output, Gray Code, Hexadecimal Code, Octal Code, Quadrature Code, 4 Bit Binary - 3.18 mm - 15.88mm Panel Mount Flat - - -
RS Stock No. 878-0606
Mfr. Part No.62A11-02-060S
BrandGrayhill
kr 591,92
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Stripped Cable 100rpm 30mA
RS Stock No. 878-0625
Mfr. Part No.61K64
BrandGrayhill
kr 891,02
Each
Units
64 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS Stock No. 878-0565
Mfr. Part No.61RS128-080
BrandGrayhill
kr 1 031,10
Each
Units
128 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS Stock No. 878-0559
Mfr. Part No.60A00-4-020C
BrandGrayhill
kr 627,91
Each
Units
- 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 Stock No. 878-0619
Mfr. Part No.62A22-02-060C
BrandGrayhill
kr 317,15
Each
Units
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
RS Stock No. 878-0546
Mfr. Part No.61R128-050
BrandGrayhill
kr 700,99
Each
Units
128 Quadrature 2-Bit Quadrature 5V dc 6.32 mm - 18.4mm Surface Mount Flat Pin 300rpm 30 mA @ 5 V dc
RS Stock No. 878-0489
Mfr. Part No.62S11-M5-050C
BrandGrayhill
kr 620,23
Each
Units
- 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 Stock No. 878-0426
Mfr. Part No.62AG11-L0-060C
BrandGrayhill
kr 183,75
Each
Units
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector 100rpm 30mA
RS Stock No. 878-0596
Mfr. Part No.62S11-M5-100CH
BrandGrayhill
kr 620,43
Each
Units
- 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 Stock No. 878-0445
Mfr. Part No.62AG22-L5-P
BrandGrayhill
kr 225,02
Each
Units
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA