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Swinging reflective scanning type multi-component substance non-dispersive infrared detection device

A non-dispersive infrared and reflective scanning technology, applied in the field of infrared spectrum detection, can solve problems such as unfavorable assembly and complex structure, and achieve the effect of easy assembly and simple structure

Inactive Publication Date: 2017-06-30
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to realize the detection of multi-component substances, the existing non-dispersive infrared spectroscopy detection devices usually require a combination of multiple lenses, which is complicated in structure and is not conducive to assembly

Method used

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  • Swinging reflective scanning type multi-component substance non-dispersive infrared detection device

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Embodiment 1

[0031] The embodiment of the present invention provides a non-dispersive infrared detection device for a oscillating reflection scanning type multi-component substance, see figure 1 The non-dispersive infrared detection device includes: an infrared light source 1, a sample cell 2, a condensing lens 3, a swingable reflector 4, and an infrared detector unit 5.

[0032] Among them, the infrared light source 1 generates a emitted light beam covering the mid-infrared band through the thermal radiation effect. The infrared light source 1 is equipped with a parabolic reflector lampshade for collecting and collimating the mid-infrared beam, in order to improve the energy utilization efficiency of the light source.

[0033] The collimated mid-infrared beam passes through the substance to be measured in the sample cell 2 and produces characteristic absorption. At this time, the mid-infrared transmitted beam already carries content information of each component in the substance to be measured....

Embodiment 2

[0044] Combine below figure 1 , And a specific example to further introduce the solution in embodiment 1, see the following description for details:

[0045] An oscillating reflection scanning type non-dispersive infrared detection device for a multi-component substance proposed in an embodiment of the present invention has a main structure including: an infrared light source 1, a sample cell 2, a condensing lens 3, a swingable mirror 4, and an infrared detector unit 5 The infrared light source 1 is equipped with a parabolic reflector lampshade, and the infrared detector unit 5 is composed of multiple infrared detectors integrated with bandpass filter windows of different designated wavelength bands.

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Abstract

The invention discloses a swinging reflective scanning type multi-component substance non-dispersive infrared detection device, and relates to the technical field of infrared spectrum detection. The multi-component substance non-dispersive infrared detection device quantitatively detects according to the characteristic absorption spectrum peak of mid-infrared light of different substances. In the device, a plane reflector rapidly swings to scan, the incidence direction of a mid-infrared beam relatively to an infrared detector is controlled, a plurality of infrared detectors detect at the same time in a targeting manner, and the device also replaces an additionally used chopper or pulse modulation light source to conduct necessary pulse modulation of the intensity of the mid-infrared light. Meanwhile, the device uses the design of a single lens, the compact structure is realized, and the assembly difficulty is reduced; and the swinging reflective scanning type multi-component substance non-dispersive infrared detection device has the advantages of simple structure, easy assembly, and simultaneous rapid detection of multiple substance ingredients.

Description

Technical field [0001] The invention relates to the technical field of infrared spectroscopy detection, in particular to a non-dispersive infrared detection device of a swing reflection scanning type multi-component substance. Background technique [0002] With the rapid economic and social development and the continuous improvement of people’s living standards, the requirements for the quality of life are constantly enriched. At the same time, problems such as serious environmental pollution, worrying food quality, and public safety threats have become increasingly prominent. Development has caused serious obstacles. In view of the people's quality of life needs and various social problems, the solution is to find a method that can quickly and accurately detect various substances and realize effective detection and supervision of substances that need to be cared about and must be paid attention to. [0003] The introduction of infrared spectroscopy detection method realizes the q...

Claims

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Application Information

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IPC IPC(8): G01N21/3504G01N21/3563G01N21/3577
CPCG01N21/3504G01N21/3563G01N21/3577
Inventor 李奇峰王慧捷马翔云王洋陈达陈文亮
Owner TIANJIN UNIV
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