Radio frequency (RF) fuel hazard detection device

Abstract

The invention discloses a radio frequency (RF) fuel hazard detection device which is used for detecting the arc / spark temperature and image so as to judge whether RF fuel hazard is caused or not. The device comprises a testing device base, an optical fiber spectrometer detector, a light-guide fiber endoscope lens, a light-guide fiber, an optical fiber spectrometer and a nitrogen injection conduit, wherein the testing device base is used for fixing the light-guide fiber endoscope lens and the optical fiber spectrometer detector; the optical fiber spectrometer detector is used for detecting the emission spectrum information of arc / spark, and calculating the arc / spark temperature according to the relative intensity of spectrum of a spectral term with the specified wave length; the light-guide fiber endoscope lens is used for acquiring and recording the image information in a fuel tank so as to detect the occurrence of arc / spark; the nitrogen injection conduit is used for injecting nitrogen into a fuel container so as to guarantee the discharge condition and the test safety. The RF fuel hazard detection device is simple in structure, easy to maintain, convenient in setting and safe to use, and is capable of guaranteeing the accuracy of test data.

Description

technical field [0001] The invention relates to a radio frequency fuel hazard detection device, in particular to a device for detecting arc / spark temperature and images using an optical fiber endoscope and 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 conditions vary with different situatio...

AI Technical Summary

Problems solved by technology

However, the direct test method also has some insurmountable shortcomings: the direct test method can only carry out 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

Images