Portable gas explosive identification device based on Raman spectrum

A technology of Raman spectroscopy and Raman gas, applied in Raman scattering, material excitation analysis, etc., can solve the problems of damage to optical components and quartz sealing windows, gas cracking, inconvenient portability and use, etc., and achieve non-destructive quantitative and qualitative The effect of analysis, size reduction, and portability improvement

Inactive Publication Date: 2015-03-25
CHENGDU DINGZHIHUI TECH
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Problems solved by technology

Rather, pulsed lasers that are too high can cause gas breakdown on the focused area, damage to optics and quartz-sealed windows in the path of the laser beam, and direct ignition of f

Method used

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  • Portable gas explosive identification device based on Raman spectrum
  • Portable gas explosive identification device based on Raman spectrum

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Example Embodiment

[0019] The description will be given below in conjunction with the content of the invention and specific implementations. Such as figure 1 As shown, a portable gas explosive identification instrument based on Raman spectroscopy includes a sample pretreatment device, a Raman gas optical analysis unit, a combustion analysis unit, a data communication unit, a signal output display unit and a main control unit; the sample pretreatment device The main control unit is used to control the input of the sample gas, the quantum cascade laser emits a laser for detecting the reaction liquid, and the data communication unit It is used for transmitting the result obtained by the sample pretreatment device to a remote analysis unit for obtaining the analysis result, and the signal output display unit is used for obtaining and displaying the analysis result.

[0020] According to a preferred embodiment of the present invention, the sample pretreatment device and the first analysis unit are integ...

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Abstract

The invention provides a portable gas explosive identification device based on a Raman spectrum, aiming at solving the problem that most of existing gas explosive identification devices are inconvenient to carry and use due to too large volume. The portable gas explosive identification device based on the Raman spectrum comprises a sample pretreatment device, a first analysis unit, a second analysis unit, a data communication unit, a signal output display unit and a main control unit. The portable gas explosive identification device provided by the invention has the beneficial effects that an analysis and processing mechanism is not included in the identification device, so that the reduction of volume and the improvement of the portability of the identification device are facilitated; combustible gases such as methane can be detected, rapid, simple and noninvasive quantitative and qualitative analysis can be achieved, and the portable gas explosive identification device has obvious advantages in aspects of continuity, reliability, accuracy, sensitivity and the like; and the safety of gas explosives, namely combustible gases, in inspection and identification processes can be ensured to the greatest extent.

Description

technical field [0001] The present invention relates to an analysis device based on Raman spectroscopy, more specifically, to a portable gas explosive identification device based on Raman spectroscopy. Background technique [0002] Raman spectroscopic analysis technology is a non-contact spectroscopic analysis technology based on Raman scattering effect, which can perform qualitative and quantitative analysis on the composition and structure of substances. The measurement speed of Raman spectroscopy is fast, and the application of Raman spectroscopy analysis can achieve in-situ real-time measurement, which is conducive to real-time online monitoring of process control. Since the appearance of laser in 1960, due to the characteristics of good monochromaticity, concentrated energy, and large output power, especially the advantages of high spectral radiation density, small volume of laser source, light weight, and easy automatic operation, lasers will soon be used The excitati...

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Application Information

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IPC IPC(8): G01N21/65
Inventor 许驰
Owner CHENGDU DINGZHIHUI TECH
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