SPECIFICATIONS

Product introduction

The rotary encoder can count the number of output pulses in the positive and reverse directions through rotation. Unlike the potentiometer, the rotation count is unlimited. With the key on the rotary encoder, it can be reset to the initial state, i.e. counting from .

Product features

1. High stability

2. There is no limit to the rotation count

3. Strong anti-interference

4. High quality materials. Long service life

Product parameters

Digital rotary encoder module

Working voltage: 5V

Number of pulses per cycle: 20

Resistance adjustment Fang Wu: rotary type

Weight: 6g

Size: 23.4mm in diameter

Application: Suitable for car audio, car air conditioner, car navigation, other household appliances and related electronic equipment.

working principle

Incremental encoder is a rotary sensor that converts rotary displacement into a series of digital pulse signals. These pulses are used to control angular displacement. In Eltra encoder, the photoelectric scanning principle is used for the conversion of angular displacement. The reading system is based on the rotation of the radial indexing disk (code disk) composed of alternating light transmitting window loops and light impervious window loops. At the same time, the image of the code disk is projected onto the surface of the receiver by a vertical illumination of an infrared light source. The receiver is covered with a diffraction grating. It has the same window back width as the code disk. The receiver's job is to feel the changes caused by the rotation of the disc. The light change is then converted into the corresponding electrical change. Then the low-level signal rises to a higher level. And generate square pulse without any interference. This must be handled by electronic circuits. The reading system is usually differential. That is to say, compare two different signals with the same waveform but a ceiling level difference of 180 °. The wind improves the quality and stability of the output signal. The reading is based on the difference between the two signals. The interference is thus eliminated.