Automatic real-time adjustment of pulse signal of incremental photoelectric encoder

Automatic real-time adjustment of pulse signal of incremental photoelectric encoder An automatic real-time pulse signal adjustment method for the incremental photoelectric encoder was designed in this study in an effort to ensure highly precise output speed pulse signals. The original moire fringe signal of the photoelectric sensor encoder output is first converted into a voltage signal through the digital potentiometer, then the voltage signal is converted into two orthogonal sinusoidal signals through the amplifier circuit, and finally the sinusoidal signal is subdivided into 10 segments via the subdividing chip and converted into a square wave pulse signal output. The numerical size of the digital potentiometer can be adjusted according to the collected sine signal amplitude value and square wave pulse signal error, which restrains the output error within a reasonable range. Experimental results showed that in high temperature conditions, the system can reduce the peak error of the encoder output square wave signal from 3.12″ to 0.52″; in low temperature conditions, the peak error can be reduced from 4.16″ to 0.56″. Optical Review Springer Journals

Automatic real-time adjustment of pulse signal of incremental photoelectric encoder

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Springer Japan
Copyright © 2017 by The Optical Society of Japan
Physics; Optics, Lasers, Photonics, Optical Devices; Atomic, Molecular, Optical and Plasma Physics; Quantum Optics; Microwaves, RF and Optical Engineering
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