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Device for simultaneously detecting at least two different halogenated hydrocarbon gases

A technology of halogenated hydrocarbons and gases, applied in the field of optical spectroscopy, can solve the problems of inability to accurately measure the corresponding concentrations of different gases, achieve good application scenarios, reduce external noise interference, and simple structure

Pending Publication Date: 2021-09-28
浙大宁波理工学院
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a device for simultaneously detecting at least two different halogenated hydrocarbon gases, so as to solve the problem that the corresponding concentrations of different gases cannot be accurately measured when two or more than three halogenated hydrocarbon gases are mixed. The problem

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  • Device for simultaneously detecting at least two different halogenated hydrocarbon gases
  • Device for simultaneously detecting at least two different halogenated hydrocarbon gases
  • Device for simultaneously detecting at least two different halogenated hydrocarbon gases

Examples

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Embodiment 1

[0050] like figure 1 , an apparatus for simultaneously detecting at least two different halogenated hydrocarbon gases, comprising:

[0051] Data acquisition component 1;

[0052] The laser component 2 is connected to the data acquisition component 1, so as to modulate the resonant frequency of the light intensity through the data acquisition component 1;

[0053] The amplifier component 3 is connected to the data acquisition component 1 in communication with each other, so as to input the amplified signal to the data acquisition component 1 for collection;

[0054] A photoacoustic cell assembly 4 for storing at least two different halogenated hydrocarbon gases is communicatively connected to the output end of the laser assembly 2, and the output end of the photoacoustic cell assembly 4 is connected to the input end of the amplifier assembly 3 The photoacoustic cell assembly 4 is located on the straight line where the laser assembly 2 emits light.

[0055] The light emitted ...

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Abstract

The invention discloses a device for simultaneously detecting at least two different halogenated hydrocarbon gases, and relates to the technical field of optical spectrums. The device includes a data acquisition assembly, a laser assembly, a photoacoustic cell assembly and an amplifier assembly, wherein the laser assembly is connected with the data acquisition assembly so as to modulate the resonant frequency of the light intensity through the data acquisition assembly; the amplifier assembly is in communication connection with the data acquisition assembly so as to input the amplified signal to the data acquisition assembly for collection and inversion; the photoacoustic cell assembly is located on a straight line where light emitted by the laser assembly is located, the specially designed photoacoustic cell assembly can effectively eliminate environmental noise interference, the output end of the photoacoustic cell assembly is connected with the input end of the amplifier assembly, and a signal is transmitted to the data acquisition assembly for inversion to obtain the corresponding gas concentration. According to the invention, the problem that the corresponding concentrations of different gases cannot be accurately measured when two or more halogenated hydrocarbon gases are mixed can be solved.

Description

technical field [0001] The invention relates to the technical field of optical spectroscopy, in particular to a device for simultaneously detecting at least two different halogenated hydrocarbon gases. Background technique [0002] Halogenated hydrocarbon gases include monochloromethane, dichloromethane, chloroform and other gases. Among halogenated hydrocarbon gases, dichloromethane is widely used in the field of medicine and film production, such as commonly used in the production of various penicillins, and Due to the advantages of strong solvency, dichloromethane is widely used in the manufacture of security film, as a paint solvent, metal degreaser and paint remover. As a raw material for organic synthesis, chloroform is mainly used to produce freon, dyes and drugs. In medicine, chloroform is often used as an anesthetic, and can be used as a solvent and extractant for antibiotics, spices, oils, etc. [0003] However, dichloromethane and chloroform are carcinogens, and ...

Claims

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Application Information

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IPC IPC(8): G01N21/17G01N21/25
CPCG01N21/1702G01N21/25G01N2021/1704
Inventor 王高旋何赛灵
Owner 浙大宁波理工学院
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