Non-contact electrostatic intensity detection system

Abstract

The invention discloses a non-contact electrostatic intensity detection system. The system comprises a single-chip microcomputer, an electromagnet driving module, an electromagnetic steering engine with an antenna, an amplifying circuit and a display module. The single-chip microcomputer is connected with the electromagnet driving module; the electromagnet driving module is connected with the electromagnetic steering engine with the antenna; the electromagnetic steering engine with the antenna is connected with the amplifying circuit; the display module is connected with the single-chip microcomputer. The single-chip microcomputer drives the electromagnetic steering engine with the antenna to swing up and down through the electromagnet driving module, an alternating-current sampling electrostatic field and inductive charges collected by the electromagnetic steering engine with the antenna are amplified through the amplifying circuit and then output to the single-chip microcomputer, andthe single-chip microcomputer calculates a relative electrostatic intensity value and outputs the relative electrostatic intensity value to the display module to be displayed. The antenna structure of the direct induction type electrostatic intensity detection system is improved, and zero drift is reduced; compared with a rotary vane type electrostatic detection system and a vibration capacitancetype electrostatic detection system, the structure of the induction antenna and the design of a conditioning circuit are greatly simplified, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of electrostatic strength detection, in particular to a non-contact electrostatic strength detection system. Background technique [0002] At present, non-contact electrostatic strength detection equipment is mainly divided into three types: direct induction type, rotary vane type and vibration capacitance type. Among them, the cost of direct induction electrostatic detection is the lowest and the simplest, but the zero point drift of the detection equipment will be caused by the leakage of the induced charge; the rotary vane type and vibrating capacitive electrostatic detection equipment can be overcome to a certain extent by adding metal rotating blades and vibrating capacitive sensors. The problems existing in the direct induction electrostatic detection method are eliminated, but these two electrostatic detection devices increase the cost and the complexity of the system. The above problems need to be s...

AI Technical Summary

Problems solved by technology

Among them, the cost of direct induction electrostatic detection is the lowest and the simplest, but the zero point drift of the detection equipment will be caused by the leakage of the induced charge; the rotary vane type and vibrating capacitive electrostatic detection equipment can be overcome to a certain extent by adding metal rotating blades and vibrating capacitive sensors. solves the problems existing in the direct induction electrostatic detection method, but these two electrostatic detection devices increase the cost and the complexity of the system

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