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Method and device for detecting ratio of components of buffer gas-containing atomic gas

A technology of buffer gas and detection method, which is used in measurement devices, analysis materials, material analysis by optical means, etc., can solve the problems of difficult non-destructive detection of component characteristics and other problems

Inactive Publication Date: 2013-12-25
周超
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a detection method for the ratio of each component in the atomic gas containing buffer gas, the method obtains the ratio of each component in the atomic gas containing buffer gas through the measurement and analysis of the diffusion and transmission behavior of light waves, Solve the key problem that the characteristics of atomic gas components containing buffer gas in the closed gas chamber are difficult to carry out non-destructive testing

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  • Method and device for detecting ratio of components of buffer gas-containing atomic gas

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] Such as figure 1 As shown, a detection device for the proportion of each component of an atomic gas containing a buffer gas, the device includes a detection light source 1, a Glan Taylor prism 2, a sample stage 3, an integrating sphere 4, an oscilloscope 5, a photodetector 6 and a computer 7 .

[0043] The collimated laser is used as the detection light source 1 to output a collimated laser beam, the working wavelength is 600nm-800nm, and the output divergence angle is less than 10 -4 rad, the output mode is continuous output or pulse output; the collimated laser beam passes through the Glan Taylor prism 2 to form a linearly polarized collimated laser beam, and the total light intensity of the linearly polarized collimated laser beam is measured by the photodetector 6; the linearly polarized collimated laser beam The laser beam passes through t...

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Abstract

The invention discloses a method for detecting a ratio of components of buffer gas-containing atomic gas. The method comprises the following steps that a collimation laser as a detection light source outputs a collimated light beam; the collimated light beam goes through a Glan-Taylor polarizer to form a linearly-polarized collimated light beam; the total light intensity of the linearly-polarized collimated light beam is measured by a light intensity power meter and the measuring result is transmitted to a computer; the linearly-polarized collimated light beam enters into a sample table and then forms transmission light diffusing around after going through the sample table; the light intensity of the transmission light diffusing around is measured by an integrating sphere and an oscilloscope and the measured data is transmitted to the computer; and the computer carries out data analysis computation on the intensity of the transmission light diffusing around and the total light intensity of the linearly-polarized collimated light beam so that transmissivity of the transmission light diffusing around is obtained, and further carries out computation so that the ratio F of nonbuffered gas to buffer gas in the buffer gas-containing atomic gas is obtained. The method realizes a nondestructive test on components of the buffer gas-containing atomic gas in a closed gas chamber. The invention also discloses a device for detecting the ratio of the components of the buffer gas-containing atomic gas.

Description

technical field [0001] The invention relates to the technical field of atomic gas detection, in particular to a method and a device for detecting the ratio of each component in an atomic gas containing a buffer gas for the characteristics of light wave diffusion and transmission in a scattering system. Background technique [0002] Atomic gas medium is the most basic and important type of basic system in contemporary technological innovation and industrial production. It plays an irreplaceable role in many fields such as cold atom research, spectroscopy technology, electromagnetism, and time-frequency metrology. One of the most important application aspects of atomic gases is their use as working substances in the physics part of atomic frequency standards. The atomic frequency standard is a time-frequency measurement technology based on atomic energy level transitions, and is currently the most accurate time-frequency measurement benchmark. At present, atomic gases such as...

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Application Information

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IPC IPC(8): G01N21/17
Inventor 石凡崔永顺赵环王暖让杨仁福年丰杨春涛葛军杨于杰冯克明
Owner 周超
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