2/5Pcs With Knob Cap Potentiometer 360 Degree Rotary Encoder Module KY-040 Brick Sensor Development Board

Incremental encoder is a rotary sensor that converts rotating displacement into a series of digital pulse signals. These pulses are used to control angular displacement. The angular displacement conversion in Eltra encoder is based on photoelectric scanning principle. The READING SYSTEM IS BASED ON THE ROTATION OF A RADIAL DIAL (CODE DIAL) CONSISTING OF ALTERNATING LIGHT AND OPAQUE Windows, SIMULTANEOUSLY ILLUMINATED VERTICALLY BY AN INFRARED LIGHT SOURCE, WHICH PROJECTS THE IMAGE OF THE CODE DIAL ONTO THE RECEIVER SURFACE. The receiver is covered with a diffraction grating, which has the same window width as the code plate. The receiver's job is to sense the changes caused by the rotation of the disc and then convert the optical changes into corresponding electrical changes. The low level signal is then raised to the high level to produce a square pulse without any interference, which must be processed by electronic circuits. The readout system is usually differential, in which two different signals with the same waveform but a phase difference of 180° are compared to improve the quality and stability of the output signal. The reading is based on the difference between the two signals, thus eliminating interference. Size:2.6*1.9*2.8cm Package quantity:2/5Pcs Note: Please allow slight differences due to manual measurement. The above dimensions are for reference only. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image.