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Infrasonic wave generator based on laser-induced shock waves

A technology for generating devices and shock waves, applied in lasers, phonon exciters, laser parts, etc., can solve the problems of non-reusable, difficult to control intensity, etc., to achieve the effect of improving mobility and increasing intensity

Inactive Publication Date: 2012-08-15
JIANGSU UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the currently developed infrasound weapons are disposable and cannot be reused, and it is difficult to control their intensity

Method used

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  • Infrasonic wave generator based on laser-induced shock waves
  • Infrasonic wave generator based on laser-induced shock waves

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Embodiment Construction

[0022] The present invention is illustrated below in conjunction with the accompanying drawings, but the present invention is not limited.

[0023] Such as figure 1 As shown, first, the nozzle 4 ejects compressed air to form a certain pressure in the isolation chamber to protect the focusing lens 3; the working medium nozzle 8 ejects the working medium 7; the laser 1 emits a high-energy ultrashort pulse laser beam 2, which passes through After focusing, the focusing mirror 3 passes through the tapered hole of the isolation plate 6, and then acts on the working medium 7 ejected from the nozzle 8, so that the working medium breaks down and produces a plasma explosion in the trumpet-shaped tube 9, and several GPa are generated inside the plasma The pressure, the formed plasma explosion shock wave excites the gas in the horn tube, and when the pulse frequency of the laser 1 changes from 1 to 20 Hz, infrasonic waves of different frequencies are formed.

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Abstract

The invention relates to an infrasonic wave generator base on laser-induced shock waves, which comprises a high-energy ultrashort pulse laser, a focusing system, a working medium-jetting system and a flaring tube. The high-energy ultrashort pulse laser interacts with the substance jetted by the working medium-jetting system, so that a working medium can be broken down to form plasma, the plasma explodes to generate a shock wave, the shock wave pushes the air in the flaring tube to move at extremely high speed along the axial direction of the flaring tube, the air of the orifice is excited by the shock wave, so that infrasonic waves with different frequencies can be generated, and the intensity of the infrasonic waves can be changed by changing the energy of the pulse laser or changing theworking medium. The infrasonic wave generator has the characteristics of adjustable frequency and power, high maneuverability and the like. Since the infrasonic waves have extremely strong penetrating ability, the infrasonic waves can easily penetrate a building to cause a physiological effect on lives in the building, and by regulating frequency and power, the infrasonic wave generator can produce different physiological effects on lives.

Description

technical field [0001] The invention relates to an infrasonic wave generating device, in particular to an infrasonic wave generating device based on laser shock waves. Background technique [0002] Infrasound refers to sound waves with a frequency less than 20 Hz (Hertz), which cannot be heard by the human ear. The inherent vibration frequency of the internal organs of the human body is similar to the infrasound frequency (0.01-20 Hz). If the external infrasound frequency is similar or the same as the vibration frequency of the internal organs, it will cause the "resonance" of the internal organs of the human body. Subtle and rhythmic pulsation, the pulsation frequency is generally 2-16Hz, such as 4-6Hz for internal organs, 8-12Hz for the head, etc. These natural frequencies of the human body are just within the frequency range of infrasonic waves. Once high-power infrasound waves act on the human body, it will cause strong resonance in the human body, causing great harm. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K15/04H01S3/00
Inventor 张永康戴峰泽管海兵钱晓明姜银方张朝阳
Owner JIANGSU UNIV
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