Incremental Encoder Jitter Suppression Circuit

Abstract

The invention belongs to the technical field of industrial control, and discloses an incremental encoder shake suppression circuit. The circuit utilizes a logic combination of a D flip-flop, an inverter, an AND gate, an OR gate, and an XOR gate to solve the problem of an incremental encoder. Due to the phenomenon of wrong pulses formed by jitter and a pulse error formed when the incremental encoder is commutating each time, the influence of these two factors on the accuracy of the detection counter is eliminated, and the detection accuracy is improved, and the circuit structure is simple. And can be widely used in engineering.

Description

Incremental encoder shake suppression circuit Technical field [0001] The invention belongs to the technical field of industrial control, and relates to a vibration suppression circuit for an incremental encoder. Background technique Incremental encoder is a kind of rotary sensor that rotary displacement is converted into a series of digital pulse signals, reading The system is based on the rotation of a radial index disc (code disc) consisting of alternating light-transmitting windows and opaque windows, which are simultaneously An infrared light source shines vertically, and the light projects the image of the code wheel onto the receiver surface. The receiver is covered with a layer of diffracted light grid, which has the same window width as the code wheel. The job of the receiver is to sense the changes produced by the rotation of the disc, and then send the light Changes are converted into corresponding electrical changes. Then the low level signal is raised to...

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