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 Prix 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
N° de stock RS 167-3612
Référence fabricantENS1J-B28-L00256L
MarqueBourns
42,436 €
Each (In a Tray of 42)
Unité
256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm 26mA
N° de stock RS 164-2633
Référence fabricantENS1J-B28-L00256L
MarqueBourns
61,62 €
Each
Unité
256 Incremental Digital Square Wave 5V dc 6.35 mm 9.5mm 22.23mm Bracket Mount Round - 3000rpm -
N° de stock RS 178-3142
Référence fabricantHEDS-5140#A11
MarqueBroadcom
11,325 €
Each (In a Tray of 50)
Unité
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
N° de stock RS 878-0436
Référence fabricant62AG11-L0-P
MarqueGrayhill
20,61 €
Each
Unité
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA
N° de stock RS 796-7834
Référence fabricantHEDS-5140#A11
MarqueBroadcom
13,94 €
Each
Unité
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
N° de stock RS 178-3141
Référence fabricantHEDS-5120#A11
MarqueBroadcom
11,296 €
Each (In a Tray of 50)
Unité
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
N° de stock RS 878-0439
Référence fabricant62AG22-L0-060C
MarqueGrayhill
20,33 €
Each
Unité
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Ribbon Cable with Connector 100rpm 30mA
N° de stock RS 796-7830
Référence fabricantHEDS-5120#A11
MarqueBroadcom
16,37 €
Each
Unité
500 Incremental - - 4 mm - - Through Hole - - 30000rpm -
N° de stock RS 796-7868
Référence fabricantHEDS-6140#B09
MarqueBroadcom
27,10 €
Each
Unité
1000 Incremental - - 0.5 in - - Through Hole - - 30000rpm -
N° de stock RS 178-3264
Référence fabricantHEDS-6140#B09
MarqueBroadcom
23,955 €
Each (In a Box of 100)
Unité
1000 Incremental - - 0.5 in - - Through Hole - - 30000rpm -
N° de stock RS 878-0442
Référence fabricant62A15-01-090C
MarqueGrayhill
38,86 €
Each
Unité
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
N° de stock RS 162-2596
Référence fabricantEM14A1D-C24-L032N
MarqueBourns
21,225 €
Each (In a Tube of 25)
Unité
32 Incremental 2 Channel Quadrature 5V dc 3.17 mm 1.73mm 19.05mm Through Hole Flat Axial PC Pin 120rpm -
N° de stock RS 789-9488
Référence fabricantEM14A1D-C24-L032N
MarqueBourns
26,40 €
Each
Unité
32 Incremental 2 Channel Quadrature 5V dc 3.17 mm 1.73mm 19.05mm Through Hole Flat Axial PC Pin 120rpm -
N° de stock RS 878-0561
Référence fabricant60A18-4-020C
MarqueGrayhill
63,03 €
Each
Unité
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 14.73mm Panel Mount Flat Connector - 5 (Joystick) mA, 20 mA @ 5 V dc (Rotary)
N° de stock RS 878-0521
Référence fabricant25LB22-H
MarqueGrayhill
6,11 €
Each
Unité
- 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
N° de stock RS 878-0603
Référence fabricant62A11-02-060C
MarqueGrayhill
32,36 €
Each
Unité
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 17.44mm Surface Mount Flat Connector 100rpm 30mA
N° de stock RS 878-0432
Référence fabricant62AG11-L5-P
MarqueGrayhill
18,29 €
Each
Unité
- Quadrature 2-Bit Gray Code 5V dc 6.32 mm - 17.45mm Panel Mount Flat Center Pin 100rpm 30mA
N° de stock RS 167-5489
Référence fabricantENT1D-D28-L00100L
MarqueBourns
42,978 €
Each (In a Tray of 42)
Unité
100 Incremental Digital Square Wave 5V dc 7.14 mm 0.99mm 22.23mm Bracket Mount Plain Axial PC Pin 3000rpm -
N° de stock RS 878-0653
Référence fabricant60A18-4-060C
MarqueGrayhill
63,03 €
Each
Unité
- Quadrature 2-Bit Quadrature 5V dc 6.35 mm - 14.73mm Panel Mount Flat Connector - 5 (Joystick) mA, 20 mA @ 5 V dc (Rotary)
N° de stock RS 789-9501
Référence fabricantENT1D-D28-L00100L
MarqueBourns
55,83 €
Each
Unité
100 Incremental Digital Square Wave 5V dc 3.175 mm 0.99mm 22.23mm Bracket Mount Plain Axial PC Pin 3000rpm -