Non-contact electrostatic voltage measuring instrument automatic calibration device

Abstract

The invention belongs to the technical field of electromagnetic metering and relates to a non-contact electrostatic voltage measuring instrument automatic calibration device. The device comprises a cabinet, a plate electrode, a distance adjusting device, an image acquisition device, a high-voltage power supply and an upper computer, wherein the plate electrode is arranged on an inner top surface of the cabinet; the distance adjusting device is located on the lower side of the plate electrode and used for adjusting the vertical distance between a calibrated electrostatic voltmeter and the plate electrode, a clamp is fixed to a moving part of the distance adjusting device, and the clamp is used for clamping the calibrated electrostatic voltmeter; the image acquisition device is used for acquiring the reading of the calibrated electrostatic voltmeter and is arranged on one side of the distance adjusting device; the output voltage of the high-voltage power supply is adjustable, an output end is electrically connected with the plate electrode, and an input end is electrically connected with the power supply; and the upper computer is electrically connected with the high-voltage power supply, the distance adjusting device, the image acquisition device and the power supply respectively. The device is high in safety and controllability, automatic voltage adjustment, automatic reading, automatic discharging and automatic positioning of the distance between the calibrated electrostatic voltmeter and the plate electrode in the calibration process are achieved, and safety and convenience of the device are improved.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic measurement, and in particular relates to an automatic calibration device for a non-contact electrostatic voltage measuring instrument. Background technique [0002] Static electricity is a kind of electrical energy, which remains on the surface of objects, which is the result of the local imbalance of positive and negative charges, and is formed by the conversion of electrons or ions. Discharge occurs when static electricity accumulates to a certain extent. In areas where flammable and flammable mixtures exist in the surrounding space, when the energy of electrostatic discharge is greater than or equal to the minimum ignition energy of the mixture, that is, when the concentration is within the explosion limit range, explosion and fire accidents may occur. Static electricity may cause dust explosions, fires, and breakdown failures of large-scale integrated circuits. It is a potential majo...

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Problems solved by technology

However, under the experimental conditions, since the test distance has a direct impact on the measurement results, it is difficult to ensure the accuracy of the distance by manual positioning. At the same time, the plate electrodes in the manually built platform are exposed and carry high voltage, which may cause personal electric shock. Hidden danger

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