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An annular multi-point reflection type photoelectric gas sensor probe

A gas sensor, reflective technology, applied in the field of laser spectrum gas sensors, can solve the problems of reducing the volume of the absorption pool, reducing the response time, etc., to improve the detection signal-to-noise ratio and measurement accuracy, reduce the response time, and reduce the possibility of changes Effect

Active Publication Date: 2018-12-04
LASER RES INST OF SHANDONG ACAD OF SCI
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Problems solved by technology

[0009] In order to solve the deficiencies of the prior art, the present invention provides an annular multi-point reflective photoelectric gas sensor probe, which uses a single reflective element, overcomes the defects of multiple separate elements in the prior art, and makes the optical path very stable; at the same time, the The three-dimensional optical path is changed into a two-dimensional planar optical path, thereby reducing the volume of the absorption pool, reducing the response time of the measurement, and solving the urgent problems in this technical field

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  • An annular multi-point reflection type photoelectric gas sensor probe
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[0042] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0043] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0044] The following is attached Figure 1 to Figure 7 and embodiments, the technical solutions and advantages ...

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Abstract

An annular multi-point reflection type photoelectric gas sensor probe is disclosed. The photoelectric gas sensor probe includes an annular multi-point reflection ring having a hollow cylinder structure. Upper and lower side surfaces of the hollow cylinder structure are provided with cover plates respectively. A cavity formed by the hollow cylinder structure and the cover plates is a gas absorptioncell accommodating gas to be detected. The center of one of the cover plates is provided with a solid cylinder reducing the total volume of the gas absorption cell. The hollow cylinder structure is provided with a light beam access opening. A parallel light transceiver module is fixedly arranged at the opening, and is used for generating parallel light, processing the parallel light and then transmitting the processed parallel light to the gas absorption cell to perform a plurality of times of reflection and then outputting the light. The annular multi-point reflection design reduces the sizeof the absorption cell of the sensor probe, increases the optical path length, greatly improves optical path stability and reliability, reduces the degree of debugging difficulty and reduces the production and processing cost.

Description

technical field [0001] The invention relates to the technical field of laser spectrum gas sensors, in particular to an annular multi-point reflection photoelectric gas sensor probe. Background technique [0002] In recent years, as people's requirements for environmental detection and production safety control have been increasing, many new gas detection technologies and equipment have continuously entered the market. As optoelectronic components are widely used in the optical fiber communication industry, their production costs continue to decrease and product categories continue to increase, so that the cost of optoelectronic technology equipment that uses the principle of infrared laser spectrum absorption to measure gas composition and concentration is reduced, the volume becomes smaller, and the performance becomes better. , becomes more practical. [0003] The increasingly mature tunable diode laser absorption spectroscopy (TDLAS) technology is a gas detection technol...

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Application Information

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IPC IPC(8): G01N21/61
CPCG01N21/61
Inventor 刘统玉宁雅农李艳芳金光贤张婷婷宁凯文
Owner LASER RES INST OF SHANDONG ACAD OF SCI
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