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. 252-3915
Mfr. Part No.EC11B152442D
HK$30.55
Each (In a Pack of 5)
units
15 Incremental - Push Pull 6 mm Shaft 6mm 5 V dc - - - - 31.6mm 13.75mm 11.7mm
RS Stock No. 265-2928
Mfr. Part No.EC11B152442D
HK$39.34
Each
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RS Stock No. 172-7679
Mfr. Part No.EC11B152442D
HK$28.163
Each (In a Tray of 100)
units
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RS Stock No. 172-6376
Mfr. Part No.EC11B152040G
HK$23.715
Each (In a Tray of 100)
units
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RS Stock No. 252-3921
Mfr. Part No.EC11B152040G
HK$30.484
Each (In a Pack of 5)
units
15 Incremental - - Solid 6mm 5 Vdc - - - - 31.6mm 13.75mm 11.7mm
RS Stock No. 265-1717
Mfr. Part No.EC11B152040G
HK$32.51
Each
units
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