Method for testing electromagnetic environment effect of monitoring system in variable rising edge wide pulse electric field environment

Abstract

The invention discloses a method for testing the electromagnetic environment effect of a monitoring system in a variable rising edge wide pulse electric field environment, and the method comprises thesteps: achieving the continuous adjustment of a rising edge of a radiation field from ns magnitude to mus magnitude through employing a steepening inductor, an adjustment inductor and a low-inductance short-circuit line in cooperation with a pulse steepening device; utilizing a sensitivity self-calibration electric field probe and electric field data automatic acquisition and analysis software tosolve the problem of simultaneous test of the rising edge and pulse width of the electric field waveform; solving the problem of calibration of test field intensity and rising edges of different regions of the bounded wave simulator by using an empty field linear calibration method, and providing a specific test method and operation steps of the environmental effect of the monitoring system. Thestandardization and rationality of the electromagnetic environmental effect test of the monitoring system in a low-frequency wide-pulse electric field environment can be ensured, and the accuracy of the electromagnetic environmental effect test of the monitoring system can be improved.

Description

technical field [0001] The invention belongs to the field of test methods for electromagnetic environment effects of electronic systems, and in particular relates to a test method for electromagnetic environment effects of a monitoring system under a variable rising edge width pulse electric field environment. Background technique [0002] Utility model patent ZL201820312470.5 "A simulation device for fast rising edge wide pulse strong electric field environment" proposes a wide pulse strong electric field simulation device with adjustable rising edge, which can generate adjustable pulse rise within the range of 0-50ns Strong electric field waveform along the edge and millisecond pulse width. However, the simulation range of the rising edge of this device is too narrow, and the device needs to be improved for low-frequency electric fields (rising edges of several hundred ns to μs). In addition, there is a gap of several orders of magnitude between the rising edge and pulse ...

AI Technical Summary

Problems solved by technology

However, the simulation range of the rising edge of this device is too narrow, and the device needs to be improved for low-frequency electric fields (rising edges of hundreds of ns to μs)

In addition, there are several orders of magnitude gaps between the rising edge and pulse width of the waveform generated by this device. Considering the test capabilities of current general-purpose electric field probes and oscilloscopes, it is impossible to use a set of electric field probes and oscilloscopes to simultaneously achieve accurate testing of rising edges and pulse widths. In the actual use process, the waveform test and analysis method of the simulation device is an urgent problem to be solved

[0003] Invention patent ZL201510020231.3 "Experimental Method for Electromagnetic Environmental Effects of Electronic Equipment in a Bounded Wave Environment" standardizes the experimental methods and steps for the electromagnetic environmental effects of electronic equipment in a bounded wave electric field simulator, and divides different test areas for equipment, but the patent There is no regulation on how to test the field strength in different areas during the test: if the method of testing the field strength probe and equipment at the same time is adopted, the existence of the equipment will have a very large impact on the waveform of the field strength probe test field, resulting in inaccurate test data; If the field strength is directly converted according to different heights, the patent does not give specific operation methods and requirements

There are few research reports on the electromagnetic interference or damage of the monitoring system in the existing public literature, and the test requirements, methods and steps have not yet been specified

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