Electrostatic eliminator and control circuit

Abstract

An electrostatic eliminator comprises a positive and negative ion generation circuit used for generating positive and negative ions of a presupposition quantity and converting the positive and negative ions into an induced voltage; and a control circuit consisting of a needle pollution processing unit and a microprocessing unit. The needle pollution processing unit comprises a capturing device for capturing the phase position and vibration amplitude of the induced voltage to obtain a first voltage signal in direct proportion to the phase position and a second voltage signal in direct proportion to the vibration amplitude, a synthesizer for receiving the first and second voltage signals and superimposing the waveforms of the first and second voltage signals to obtain a synthesized signal, and an average calculating device for enabling the synthesized signal to go through an average calculating process to obtain a direct-current average voltage. A pollution-free reference value range is prestored in the microprocessing unit, and the microprocessing unit determines whether the average voltage is within the pollution-free reference value range or not.

Description

technical field [0001] The invention relates to a device and a circuit, in particular to a static elimination device and a control circuit. Background technique [0002] An existing static eliminator (not shown) with a discharge needle (not shown) can be used to generate positive and negative ions from its discharge needle to eliminate static electricity in the workplace, but the disadvantages of the existing static eliminator are: [0003] It is impossible to detect whether the discharge needle is polluted. If the discharge needle is polluted, the production of positive and negative ions will be affected. The more serious the pollution, the more the production of positive and negative ions will be reduced, making the effect of eliminating static electricity worse. Contents of the invention [0004] The first object of the present invention is to provide a static elimination device for detecting needle contamination. [0005] The static eliminator includes: [0006] A po...

AI Technical Summary

Problems solved by technology

[0003] It is impossible to detect whether the discharge needle is polluted. If the discharge needle is polluted, the production of positive and negative ions will be affected. The more serious the pollution, the more the production of positive and negative ions will be reduced, which will make the effect of eliminating static electricity worse.

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