Detection method for radio-frequency fuel oil harm

Abstract

The invention discloses a detection method for radio-frequency fuel oil harm, and particularly relates to a method for judging whether radio-frequency fuel oil harm can be produced or not according to electric arc / spark temperature information detected by a spectral analysis technology and a temperature threshold calculated from a fuel thermal value in a strong radio-frequency environment. The method comprises the following steps: firstly calculating the temperature threshold of fuel ignited by electric arc / spark according to the fuel thermal value, then detecting emission spectral information of the electric arc / spark by using an optical fiber spectrometer, calculating the temperature of the electric arc / spark according to relative spectral intensity of a specified wavelength spectral term, and finally judging whether radio-frequency fuel oil harm can be produced or not according to a relationship between the temperature of the electric arc / spark and the temperature threshold of radio-frequency fuel oil harm. The detection method disclosed by the invention has the advantages that by adopting non-contact detection, the applicable scope is wide, and the use and setting are convenient; and a target variable of detection is an optical signal without being affected by a radio-frequency electromagnetic environment, so that the accuracy of testing data is ensured.

Description

technical field [0001] The invention relates to a method for detecting radio frequency fuel hazards, in particular to a method for judging whether radio frequency fuel hazards will occur through arc / spark temperature information detected by spectral analysis technology in a strong radio frequency environment, and belongs to the technical field of electromagnetic compatibility testing. Background technique [0002] Fuel vapors may be ignited by arcing induced by strong RF fields. To ignite fuel vapor, the following three conditions must be met at the same time, namely: [0003] a) For a given ambient temperature, the mixing ratio of fuel vapor and air must be appropriate; [0004] b) There must be sufficient energy in the arc and spark to provide the proper temperature for ignition; [0005] c) There must be sufficient arc gap. When the arc gap is too small, the electrodes act as heat sinks that generate heat, preventing ignition. [0006] Most of the above-mentioned cond...

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Problems solved by technology

[0009] However, the direct test method also has some insurmountable shortcomings: the direct test method can only conduct qualitative analysis, and its test results are only valid for the test conditions, because the quantitative data cannot be obtained, so the test results under other conditions cannot be evaluated through the test data; Because it is impossible to record possible discharge phenomena during the test, it is impossible to monitor, analyze and record the test data in real time, and it is impossible to provide a reference for system improvement

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