Sample tank used for observation of liquid oxygen fluorescence spectrum

A fluorescence spectrum and sample cell technology, applied in the field of sample cells for observing liquid oxygen fluorescence spectrum, can solve the problems of endangering the safety of operators, complicated operation procedures, and long preparation time for laser light emission, etc., so as to ensure safety and slow down the volatilization rate. , the effect of reducing fluorescence loss

Inactive Publication Date: 2014-12-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, the application of these lasers is largely limited by their large size. In addition, there are some factors that affect the application of the above-mentioned high-power lasers, such as the use of dangerous chemicals, endangering the safety of operators, and complicated operating procedures. ...

Method used

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  • Sample tank used for observation of liquid oxygen fluorescence spectrum
  • Sample tank used for observation of liquid oxygen fluorescence spectrum

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Embodiment

[0027] Example: such as figure 1 , figure 2 As shown, the present invention discloses a sample cell for observing the fluorescence spectrum of liquid oxygen, including a liquid oxygen cell 11, a liquid nitrogen cell outer container 3, and a liquid nitrogen cell inner container 10. The liquid oxygen cell 5 is provided with a The oxygen injection pipe 4 connected to the oxygen source and two symmetrically arranged transparent laser passage windows 6 at both ends, the liquid oxygen tank 11 is placed in the inner tank 10 of the liquid nitrogen tank, and its position relative to the outer tank of the liquid nitrogen tank passes through the oxygen The injection pipe 4 is fixed; the liquid nitrogen pool liner 10 includes a liquid nitrogen injection pipe 2 connected to the liquid nitrogen source, a nitrogen discharge pipe 5, and symmetrically arranged on the liquid nitrogen pool liner at a position corresponding to the passage window 9 Two transparent inner tank lasers pass through ...

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Abstract

The invention discloses a sample tank used for observation of a liquid oxygen fluorescence spectrum, and the sample tank comprises a liquid oxygen tank, a liquid nitrogen tank outer container and a liquid nitrogen tank inner container; the liquid oxygen tank and a liquid nitrogen tank are prepared from pyrex glass by an integrated melting process. The liquid nitrogen tank is a thermal insulation device with the inner layer and the outer layer. A vacuum interlayer is arranged between the inner layer and the outer layer. Two ends of the liquid oxygen tank and liquid nitrogen tank are laser through windows prepared from pyrex glass, and the centers of the side walls of the liquid oxygen tank and liquid nitrogen tank are welded with observation windows used to collect fluorescence by the integrated melting process. The sample tank has the advantages that the sample tank solves the problem of frosting on the observation windows, caused by larger temperature difference between the liquid nitrogen tank and the outside, and simultaneously solves the problem of rapid evaporation of liquid oxygen at room temperature.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a sample cell for observing the fluorescence spectrum of liquid oxygen. Background technique [0002] At present, high-power continuous-wavelength lasers have been widely used in civil and national defense, such as hydrogen fluoride lasers, oxygen iodine lasers, carbon dioxide lasers, and so on. However, the application of these lasers is largely limited by their large size. In addition, there are some factors that affect the application of the above-mentioned high-power lasers, such as the use of dangerous chemicals, endangering the safety of operators, and complicated operating procedures. , The preparation time for laser output is too long, etc. Liquid oxygen is a promising high-efficiency, environmentally friendly new high-energy continuous laser working medium. Lasers using liquid oxygen as the working medium are expected to make up for these defects of the above-mentioned la...

Claims

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Application Information

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IPC IPC(8): G01N21/01
Inventor 郭敬为石喆刘金波周灿华李慧孟庆琨金玉奇
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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