Shaping method and circuit for photoelectricity code circuit output signal

Abstract

The invention discloses a shaping method and a circuit for a photoelectricity code circuit output signal. The method includes: adding a photoelectricity code circuit output signal shaping circuit between a photoelectricity code circuit and a double-frequency counter; eliminating a shaking signal of an output end of the photoelectricity code circuit, and obtaining an effective counting signal which is output through the photoelectricity code circuit. According to the shaping method and the circuit for the photoelectricity code circuit output signal, only a simple logic gate circuit which is composed of a phase inverter manifold block, an exclusive-or gate manifold block, two D trigger manifold blocks, two resistors and two capacitors is used to improve counting accuracy of the photoelectricity code signal with the shaking, and measurement of the photoelectricity code signal to be easy and reliable. The shaping method and the circuit for the photoelectricity code circuit output signal has the advantages of being less in used components and small in size of the circuit, and is suitable for operating conditions that subsurface equipment is small in size and working environment is terrible.

Description

technical field [0001] The invention relates to a method and a circuit for shaping the output signal of a photoelectric encoding circuit. It belongs to the technical field of reducing counting errors. Background technique [0002] The photoelectric encoder is a digital detection device that integrates light, mechanics and electricity, and is widely used in the field of industrial control. The counting of the output signal of the photoelectric encoder is the basis of its application. The output signal of the traditional photoelectric encoding circuit is directly connected with the counting circuit, and the signal output by the encoder is counted through the counting circuit. If the photoelectric encoder installed on the industrial site works in a harsh environment, its output signal will be affected by various interferences, and there are jittering interference signals in the output signal, which can easily cause miscounting. [0003] At present, in order to prevent miscou...

AI Technical Summary

Problems solved by technology

If the photoelectric encoder installed on the industrial site works in a harsh environment, its output signal will be affected by various interferences, and there are jittering interference signals in the output signal, which can easily cause miscounting

[0003] At present, in order to prevent miscounting, the software in the single-chip microcomputer is used to make complex anti-shake judgments, which consumes system resources and costs a lot

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