Study on Electromagnetic Radiation Interference Caused by Rocket Fuel

Cui, Yuanbo; Kong, Deren; Jiang, Jian; Gao, Shang; Wang, Shuai

doi:10.20944/preprints202111.0259.v1

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…The maximum sampling rate is set to 3 GSa/s, the electromagnetic signal with the highest frequency of 1.5 GHz can be collected on basis of Nyquist sampling law, which matches the frequency bandwidth of antenna. The sampling duration is set to 810 ms, in which the sampling duration before the trigger is 10 ms, and the sampling duration after the trigger is 800 ms [17][18][19][20][21]. As shown in Figure 1…”

Section: Experimental Principlementioning

confidence: 99%

Research on Electromagnetic Radiation Characteristics of Energetic Materials

Cui¹,

Kong²,

Jiang³

et al. 2022

Preprint

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During the explosion of energetic materials, obvious electromagnetic interference will be generated, which will affect the normal operation of surrounding electronic equipment. Experiments are still an important means to study this issue. A set of electromagnetic radiation measurement device based on short-wave omnidirectional antenna and ultra-wideband omnidirectional antenna is designed to measure the electromagnetic radiation generated by the explosion of energetic materials of different masses, and the electromagnetic radiation characteristics are obtained through data processing. The results show that the mass of the energetic material has a significant effect on the time-domain characteristics of the electromagnetic radiation generated by the explosion: the higher the mass of the energetic material, the shorter the delay response of the electromagnetic signal, the longer the duration, and the earlier the peak appears. The frequency of electromagnetic radiation signals generated by the explosion of energetic materials is mainly concentrated below 100 MHz, and the energy is most concentrated in the frequency band of 0~50 MHz. The composition of energetic materials has the greatest influence on the spectral distribution, and the spectral distribution of electromagnetic radiation produced by the explosion of explosives with different compositions has obvious specificity. The electromagnetic radiation intensity generated by the explosion of energetic materials has a strong correlation with the distance from the explosion center, and it decreases with the increase of the distance, and the decreasing range is large. The structure and detonation method of energetic materials can change the geometrical motion mode during the explosion, resulting in the non-uniformity of electromagnetic radiation propagation.

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Section: Experimental Principlementioning

confidence: 99%

Research on Electromagnetic Radiation Characteristics of Energetic Materials

Cui¹,

Kong²,

Jiang³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a bunker where is 100 meters from the energetic material, thermal imaging instruments are placed to measure the temperature of the plasma during the detonation process. The thermal imaging instrument has a temperature measurement range of -40 to 2500 K and frame rate of 250 fps, and it has a thermal sensitivity of less than 15 mK with an accuracy of 1% of the reading value [26]. 4, from which it can be obtained that the duration of the detonation process is approximately 2.1 seconds, and the fireball gradually disappears after 1.0 seconds.…”

Section: Figure 2 Schematic Diagram Of Plasma Changes Caused By Deton...mentioning

confidence: 99%

Research on Electromagnetic Radiation Mechanism During Detonation of Energetic Material

Cui¹,

Kong²,

Jiang³

et al. 2022

Preprint

Self Cite

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In the process of deflagration of energetic materials, strong electromagnetic radiation is to be generated, which causes the surrounding electronic equipment to fail to work normally. To solve this problem, it is necessary to clarify the mechanism of electromagnetic radiation generated by energetic materials. The mechanism of plasma changed by the deflagration of energetic materials is an important topic in the aerospace and geophysics fields. The academic community holds two main viewpoints on the mechanism of electromagnetic radiation generated by energetic materials: one is that the solid material is squeezed and deformed during the deflagration of energetic materials, and the charges of different polarities rub in space to form effective electric dipoles, which eventually generate electromagnetic radiation. Another view is that the deflagration of energetic materials causes the temperature of the medium to rise sharply, and bremsstrahlung is formed during the compression and diffusion of the high-temperature wave front, resulting in the generation of electromagnetic radiation. This paper, based on theoretical analysis and experimental data, holds the view that electromagnetic radiation is generated by the high-temperature thermal effect. It studies the relationship between temperature and electromagnetic radiation and obtains quantitative analysis conclusions.

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Research on Electromagnetic Radiation Mechanism during Detonation of Energetic Material

Cui

Kong

Jian

et al. 2022

Sensors

View full text Add to dashboard Cite

In the process of deflagration of energetic materials, strong electromagnetic radiation is generated, which causes the surrounding electronic equipment to fail to work normally. To solve this problem, it is necessary to clarify the mechanism of electromagnetic radiation generated by energetic materials. The mechanism of plasma changed by the deflagration of energetic materials is an important topic in the aerospace and geophysics fields. The academic community holds two main viewpoints on the mechanism of electromagnetic radiation generated by energetic materials: one is that the solid material is squeezed and deformed during the deflagration of energetic materials, and the charges of different polarities rub in space to form effective electric dipoles, which eventually generate electromagnetic radiation. Another view is that the deflagration of energetic materials causes the temperature of the medium to rise sharply, and bremsstrahlung is formed during the compression and diffusion of the high-temperature wave front, resulting in the generation of electromagnetic radiation. This paper, based on theoretical analysis and experimental data, holds the view that electromagnetic radiation is generated by the high-temperature thermal effect. It studies the relationship between temperature and electromagnetic radiation and obtains quantitative analysis conclusions.

show abstract

Study on Electromagnetic Radiation Interference Caused by Rocket Fuel

Cited by 3 publications

References 15 publications

Research on Electromagnetic Radiation Characteristics of Energetic Materials

Research on Electromagnetic Radiation Characteristics of Energetic Materials

Research on Electromagnetic Radiation Mechanism During Detonation of Energetic Material

Research on Electromagnetic Radiation Mechanism during Detonation of Energetic Material

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