Laser induced water condensation simulation system

A simulation system, laser-induced technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of explosion, volatile, and inability to accurately control the ambient temperature of the cloud chamber, and achieve safe and convenient operation, low price, and control Accurate and effective effect of ambient temperature

Active Publication Date: 2015-10-28
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

The method of dry ice refrigeration is easy to operate and the cost is relatively low, but because it is extremely volatile and sublimated into gaseous carbon dioxide 600-800 times larger than the solid volume, the use of dry ice refrigeration cannot be used in containers with good sealing performance and small volume. It is easy to cause an explosion. At the same time, dry ice refrigeration cannot accurately control the ambient temperature of the cloud chamber

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  • Laser induced water condensation simulation system
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0019] refer to figure 1 , figure 1 It is a perspective view of the structure of the laser-induced water condensation simulation system of the present invention. As shown in the figure, the laser-induced water condensation simulation system of the present invention includes a femtosecond laser 1, a lens 2, a semiconductor refrigeration assembly 7, a plexiglass chamber 4, a water tank 13, Heating resistance wire 14, temperature and humidity detection device 21, first direct current source 8, second direct current source 20, beam collecting device 6;

[0020] The plexiglass chamber 4 is a hexahedral cavity formed by joining together six pieces of plexiglass through an adhesive, and the centers of the four sides of the plexiglass chamber 4 are successively provided with a fir...

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Abstract

A laser induced water condensation simulation system is characterized in that femtosecond laser pulses are focused, the focused laser shoots into a chamber with the ambient temperature controlled by a semiconductor refrigeration assembly, the focused laser becomes filaments in the chamber, and laser filaments induce and excite condensation of water in the chamber in different environments. Current applied to semiconductor refrigeration sheets and current applied to a heating resistance wire are respectively adjusted to control the temperature and the humidity in the chamber in order to realize laser induced water condensation in different environments. The system can simulate different experiment environments, has the advantages of simple structure, safe and convenient operation, and low price, and is suitable for researching and analyzing laser induced water condensation under different environment conditions.

Description

technical field [0001] The invention relates to laser-induced water condensation, in particular to a laser-induced water condensation simulation system. Background technique [0002] Artificially inducing rainfall and snowfall has always been a beautiful dream of human beings. So far, the traditional method is mainly to sow small particles of dry ice, silver iodide and other salts in the air. Since artificial rainfall and snowfall have important influences on agriculture and other human activities, it is particularly important to study the problem of artificial rainfall and snowfall. In recent years, with the rapid development of femtosecond laser technology, it has been proved that ultra-intense and ultra-short laser pulses injected into the air can generate a plasma channel, commonly known as laser filament, which can induce water condensation. This laser filament originates from a dynamic balance between optical Kerr self-focusing and plasma self-defocusing. Based on th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 刘永宏刘建胜孙海轶鞠晶晶李鹏华王成
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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