Bán Mô đun mã hóa furuno-arduino xoay 360 độ tiện dụng giá tốt nhất

Working principles: 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 principle of photoelectric scanning is used in the transformation of angular shift in eltra encoder.The reading system is based on the rotation of a radial divider (disk) consisting of alternate optical and opaque windows and is exposed vertically by an infrared source, which projects images of the disk onto the receiver surface.The receiver is covered with a diffraction grating with the same window width as the code plate.The receiver's job is to feel the changes caused by the rotation of the disk and then convert the changes into corresponding electrical changes.Then the low-level signal is raised to a higher level and a square pulse is generated without interference, which must be handled by electronic circuits.The reading system usually uses a differential method, that is, the two waveforms are the same but the phase difference is 180°The different signals are compared to improve the quality and stability of the output signal.The reading is based on the difference between two more signals, thus eliminating interference Incremental encoders give two-phase square waves whose phase difference is 90°, usually called channel a and channel b.One channel gives information about rotational speed, and at the same time, the rotation direction is obtained by comparing the two channel signals sequentially.There is also a special signal called z or zero channel, which gives the encoder absolute zero, which is the central line of the square wave and the square wave of channel a. There are grating degrees error, optical disk eccentricity, bearing eccentricity, errors introduced by electronic reading devices, and inaccuracy of optical parts.The measurement unit for determining the encoder accuracy is the electrical degree, and the encoder precision determines the pulse fraction produced by the encoder.Use 360 below°The electrical degrees represent the rotation of the mechanical shaft, which must be a complete cycle.To know how much mechanical angle is equivalent to 360 degrees in electrical power, the following formula can be used: electrical 360 = mechanical 360°/n°Pulse/transfer The encoder fractional error is represented by the maximum offset of two continuous pulse waves in electrical angle.Error exists in any encoder, which is caused by the foregoing factors. The maximum error of the eltra encoder is ±25 electrical angle (under any stated condition), equivalent to a nominal offset of ±7% and a phase difference of 90°The maximum deviation between the two channels (electrical) is ±35 electrical degrees equivalent to a nominal offset of about ±10% Uvw incremental encoder In addition to the traditional encoders mentioned above, there are some incremental encoders integrated with other electrical output signals.An example is the incremental encoder integrated with