Rotary Encoders

Rotary Encoders are devices that convert a motion into an analogue or digital signal. These devices are electro-mechanical sensors that monitor the position of the shaft or axle and convert it into the signal readable for digital devices. Rotary Encoders are also known as shaft encoders.
Rotary Encoders can be divided into 2 main types:
· Absolute – Digital Absolute encoders produce a unique digital code for each angle of shaft. These type of encoders maintains position information when a system power is off. The position of encoder is available again on applying power. The relationship between the encoder value and the physical position of the controlled machinery is set at assembly, the system does not need to return to a calibration point to maintain position accuracy.
Types of absolute encoders:
o Mechanical
o Optical
o Magnetic
o Capacitive
· Incremental – These encoders accurately records the changes in position of the shaft but does not power up with fixed relation between encoder state and physical position. The point where the counting begins depends on the external device counting system and not the position of the encoder. To provide useful position information, the encoder position must be referenced to the device to which is attached.
Rotary Encoders are commonly used in many applications that require precise shaft unlimited rotation. It means they can be used across industries such as robotics industry, electronic industry, and machinery production but are also very popular parts of many household devices.

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Description Price Pulses Per Revolution Encoder Technology Maximum Revolutions Output Signal Type Shaft Type Shaft Diameter Supply Voltage Resolution Steps Per Revolution IP Rating Interface Overall Height Overall Width Overall Depth
RS Stock No. 692-8610
Mfr. Part No.ECW1J-B24-AC0024L
BrandBourns
£3.45
Each
Units
24 Incremental 120rpm Quadrature Solid 9mm - 2 Bit - IP40 - 27.51mm 28.49mm 22.2mm
RS Stock No. 167-4405
Mfr. Part No.ECW1J-B24-AC0024L
BrandBourns
£2.852
Each (In a Tray of 45)
Units
24 Incremental 120rpm Quadrature Solid 9mm - 2 Bit - IP40 - 27.51mm 28.49mm 22.2mm
RS Stock No. 178-3260
Mfr. Part No.HEDS-9000#T00
BrandBroadcom
£15.504
Each (In a Bag of 100)
Units
- - - - - - - - - - - - - -
RS Stock No. 796-7862
Mfr. Part No.HEDS-9000#T00
BrandBroadcom
£19.37
Each
Units
- Incremental - Push Pull - - 4.5 → 5.5 V dc 2000 CPR - - - 10.16mm 26.67mm 11.71mm
RS Stock No. 791-8554
Mfr. Part No.EBR7912EBI-CA-KA
BrandSensitec
£37.30
Each
Units
- Incremental - HTL, TTL - - 3.3 → 5 V dc - 4096Steps - - 15mm 15mm 7.2mm
RS Stock No. 260-3960
Mfr. Part No.RI58-D/ 1024ED.37KB
BrandHengstler
£273.83
Each
Units
1024 Incremental 6000rpm Push Pull Hollow 12mm 10 → 30 V dc - 1024Steps IP64, IP65 - 41.5mm - -
RS Stock No. 796-7815
Mfr. Part No.AEDB-9140-A14
BrandBroadcom
£25.24
Each
Units
- Incremental - Push Pull - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS Stock No. 178-3259
Mfr. Part No.AEDB-9140-A14
BrandBroadcom
£20.198
Each (In a Bag of 100)
Units
- - - - - - - - - - - - - -
RS Stock No. 291-4305
Mfr. Part No.RS58-O/500EK.42KB
BrandHengstler
£169.35
Each
Units
500 Incremental 10000rpm Push Pull Solid 10mm 10 → 30 V dc - - IP64, IP65 - 50mm - -
RS Stock No. 431-4599
Mfr. Part No.05.2400.1122.1024
BrandKubler
£125.24
Each
Units
1024 Incremental 12000rpm Push Pull - - 5 → 24 V dc - - IP65 - 31mm - -
RS Stock No. 291-4311
Mfr. Part No.RI58-0/1000EK.42KB
BrandHengstler
£169.35
Each
Units
1000 Incremental 10000rpm Push Pull - - 10 → 30 V dc - - IP64, IP65, IP67 - 57.5mm - -
RS Stock No. 260-3780
Mfr. Part No.RI32-O/ 1024ER.11KB
BrandHengstler
£148.24
Each
Units
1024 Incremental 6000rpm Push Pull Solid 6mm 10 → 30 V dc - - IP40 - 27mm - -
RS Stock No. 745-0089
Mfr. Part No.E6C2-CWZ5B 1000P/R 2M OMS
BrandOmron
£339.30
Each
Units
1000 Incremental 6000rpm Open Collector Solid 6mm 12 → 24 V dc 1000 P/R - IP64 - 40mm - -
RS Stock No. 818-2958
Mfr. Part No.EIL580P-SC10.5FF.01024.B
BrandBaumer
£197.51
Each
Units
65536 Incremental 12000rpm TTL/HTL Solid 10mm 4.75 → 30 V dc - - IP65 - - 48 Dia.mm 48mm
RS Stock No. 167-8878
Mfr. Part No.ECS78RBA502
BrandVishay
£13.116
Each (In a Box of 20)
Units
- Linear Measuring 150rpm - - - - - - - - 30.2mm 22.2 Dia.mm -
RS Stock No. 806-8293
Mfr. Part No.ECS78RBA502
BrandVishay
£12.00
Each
Units
- Linear Measuring 150rpm - - - - - - - - 30.2mm 22.2 Dia.mm -
New
RS Stock No. 189-4800
Mfr. Part No.HEDS-5500#A06
BrandBroadcom
£28.479
Each (In a Tube of 50)
Units
500 Optical 30000rpm Digital - 1/4in -0.5 → 7 V 500 CPR - - - 41.1mm 30mm 18.3mm
RS Stock No. 205-6869
Mfr. Part No.HEDS-5500#A06
BrandBroadcom
£34.96
Each
Units
500 Incremental 30000rpm Quadrature Hollow 1/4in 4.5 → 5.5 V dc - - - - 41.1mm 30mm 18.3mm
RS Stock No. 447-6186
Mfr. Part No.D5.3501.A331.0000
BrandKubler
£248.26
Each
Units
- Linear Measuring - Analogue - - - - - - - 40mm 55mm 40mm
RS Stock No. 436-0378
Mfr. Part No.05.2400.1122.0360
BrandKubler
£116.78
Each
Units
360 Incremental 12000rpm Push Pull - - 5 → 24 V dc - - IP65 - 31mm - -
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