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Quantitative detection device for concentration of sulfur dioxide in air based on ultraviolet fluorescence method

A sulfur dioxide, quantitative detection technology, used in measurement devices, fluorescence/phosphorescence, material analysis by optical means, etc., can solve problems such as output easily interfered, PMT temperature difficult to control, etc., to suppress stray light, reduce specular reflection, The effect of reducing interference

Pending Publication Date: 2021-07-23
安徽安光环境科技有限公司
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Problems solved by technology

[0005] The object of the present invention is to provide a kind of sulfur dioxide concentration quantitative detection device in the air based on the ultraviolet fluorescence method, to solve the PMT (photomultiplier tube) temperature that is difficult to control in the sulfur dioxide detection device that uses PMT (photomultiplier tube) to detect fluorescence in the prior art , the problem that the output is susceptible to interference

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  • Quantitative detection device for concentration of sulfur dioxide in air based on ultraviolet fluorescence method
  • Quantitative detection device for concentration of sulfur dioxide in air based on ultraviolet fluorescence method
  • Quantitative detection device for concentration of sulfur dioxide in air based on ultraviolet fluorescence method

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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] like figure 1 , figure 2 As shown, a quantitative detection device for sulfur dioxide concentration in air based on ultraviolet fluorescence method includes a reaction chamber 8, an excitation light source module is installed on one side of the reaction chamber 8, and an excitation light source module is installed on the opposite side of the reaction chamber 8 where the excitation light source module is located. A photocell module, a photon counting module is installed on one side of the reaction chamber 8 adjacent to the side where the laser light source module is located, and the excitation light source module sends excitation light to the photocell module on the opposite side, and the excitation light passes through the inside of the reaction chamber 8 so that the reaction chamber 8 enters The sulfur dioxide in the gas to be measured is exci...

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Abstract

The invention discloses a quantitative detection device for the concentration of sulfur dioxide in air based on an ultraviolet fluorescence method. The device comprises a reaction chamber, an excitation light source module, a photocell module and a photon counting module are installed on the side face of the reaction chamber, and the excitation light source module emits excitation light; the exciting light passes through the interior of the reaction chamber, so that sulfur dioxide in to-be-detected gas introduced into the reaction chamber is excited to generate fluorescence, the photon counting module detects the fluorescence intensity, and the photocell module absorbs the exciting light and detects the exciting light intensity. According to the invention, the sulfur dioxide concentration detection can be realized, the sulfur dioxide concentration detection result can be output in a shorter time, and the sulfur dioxide concentration detection result is not easily interfered by environmental change and stray light.

Description

technical field [0001] The invention relates to the field of sulfur dioxide concentration detection devices, in particular to a quantitative detection device for sulfur dioxide concentration in air based on an ultraviolet fluorescence method. Background technique [0002] With the rapid development of economy and social industry, environmental pollution has become more and more serious, and atmospheric environmental problems have generally received more and more attention. Therefore, protecting and detecting the atmospheric environment is more and more important to the development of human society and economy and the protection of human health. At present, my country's regulations on air quality must be based on three pollutants: nitrogen dioxide, sulfur dioxide, and inhalable suspended particulate matter (floating dust). It is determined according to the urban pollution situation in our country and the existing technical level. [0003] Sulfur dioxide (SO2-) is the most c...

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Application Information

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IPC IPC(8): G01N21/64G01N21/01
CPCG01N21/01G01N21/6402G01N21/6428G01N2021/0112G01N2021/6432
Inventor 陈品品范俊涛王乾坤袁野邓龙龙化利东吕峰兰芳芳徐传超
Owner 安徽安光环境科技有限公司
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