Method and system for high-accuracy simultaneous observation of long air gap

Abstract

The invention relates to a method and a system for high-accuracy simultaneous observation of a long air gap. The method comprises the following steps of: employing an optical observation system and an electrical measurement system, wherein the optical observation system comprises a static-state optical imaging device and a high-speed imaging device; and the electrical measurement system comprises a current measuring device, an electric field measuring device and a voltage measuring device; triggering the high-speed imaging device and the static-state optical imaging device by using a high-speed trigger and controlling the two devices to take photos, and obtaining the photos by a high-speed camera through a network cable via a computer; synchronously triggering the high-speed imaging device and the static-state optical imaging device by means of the high-speed trigger, and outputting the exposure clock signal and an imaging start recording signal of the high-speed imaging device through a coaxial cable; and triggering a high-speed storing / recording device by using the imaging start recording signal to record all electrical signals. The system is composed of the static-state optical imaging device, the high-speed imaging device, a transient-state electric field measuring device, a discharge current measuring device, a discharge voltage measuring device, a high-speed data memory device and the high-speed trigger.

Description

technical field [0001] The invention relates to the technical field of high-voltage testing, in particular to a high-precision synchronous observation method and system for long air gap discharge. Background technique [0002] In the field of lightning protection technology, long air gap discharge is used to test the effectiveness of lightning protection devices and optimize the lightning protection design of important facilities. Insufficient understanding may restrict the development of lightning protection technology. The applicant found in the research that in order to improve the understanding of the physical process of long air gap discharge, it is necessary to rely on the continuous improvement of the observation technology of characteristic attributes and key physical parameters in the long air gap discharge process. Due to the long air gap discharge process, there are many complex physical problems, such as the shape change process including the streamer-leader sys...

AI Technical Summary

Problems solved by technology

The problem of this method and system is that the scope of application is narrow, the observation space is narrow, and the high-precision synchronization of multiple observed physical quantities is not realized, especially not suitable for the application environment of high-precision synchronous observation of long air gap discharge.

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