Integrated small-sized laser gas detecting component

A technology for laser gas and detection components, applied in the field of detection, can solve the problems of inability to miniaturize and integrate in shape and size, unfavorable miniaturization of integrated gas detection components, complex laser gas detection systems, etc., and achieves low power consumption, Stable working temperature and small size

Pending Publication Date: 2017-01-04
武汉市智勤创亿信息技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In some gas monitoring equipment, due to the complexity of the laser gas detection system, the necessary components, including: semiconductor lasers, temperature controllers, photodetectors, etc., are large in size and complicated in connection with each other, which is not conducive to making Miniaturized and highly integrated gas detection components
Especially in the application of portable equipment and fixed-point gas alarm gas, the development of this technology is limited due to the inability to miniaturize and integrate the shape and size

Method used

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  • Integrated small-sized laser gas detecting component
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Embodiment 1

[0029] The invention relates to a laser gas detection component, more specifically, to an integrated small laser gas detection component, which belongs to the detection technology field.

[0030] Such as figure 1 As shown, an integrated small-scale laser gas detection assembly includes a metal plate 4 sequentially connected from top to bottom, a semiconductor refrigerator 5 and a radiator 6, and a terminal 9 as an electrical connection port is fixed above the metal plate 4 , a thermistor 8, a semiconductor laser 1, a spherical quartz lens 2, a photodetector 7 and a plane reflector 3; the laser light emitted by the semiconductor laser 1 is aligned with the plane reflector 3 through the spherical quartz lens 2 and is reflected by the plane After being reflected by the mirror 3, it is received by the photodetector 7; the semiconductor laser 1, the semiconductor refrigerator 5, the photodetector 7 and the thermistor 8 are respectively connected to the terminal 9.

[0031] Wherein...

Embodiment 2

[0050] Such as figure 2 As shown, the assembly described in Embodiment 1 including parts 1-9 is placed in the closed casing 14, and the air inlet 5 is installed on the closed casing 14. Outside the closed casing 14, the single-chip microcomputer 11 is respectively connected to Analog-to-digital converter 10, relay 12, display screen 13; The connecting terminal 9 that is positioned at described closed case 14 interior connects single-chip microcomputer 11 and analog-to-digital converter 10 respectively, and described semiconductor refrigerator 5 is connected with described closed case 14 outside The relay 12 is connected.

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Abstract

The invention relates to a laser gas detecting component, in particular to an integrated small-sized laser gas detecting component, and belongs to the technical field of detection. The integrated small-sized laser gas detecting component comprises a metal plate, a semiconductor cooler and a radiator which are sequentially connected from top to bottom, wherein a wiring terminal serving as an electric connector, a thermistor, a semiconductor laser device, a spherical-surface quartz lens, a photoelectric detector and a plane mirror are fixed above the metal plate; the laser transmitted by the semiconductor laser device passes the spherical-surface quartz lens to aim to the plane mirror and is reflected by the plane mirror and then received by the photoelectric detector; the semiconductor laser device, the semiconductor cooler, the photoelectric detector and the thermistor are respectively connected with the wiring terminal. The laser gas detecting component has the advantages that the components are encapsulated on the same metal substrate through the high-integration-level TDLAS system design, and the whole detecting component is allowed to form a laser gas sensing device which works independently.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to an integrated small laser gas detection component. Background technique [0002] Tunable semiconductor laser absorption spectroscopy (TDLAS) analysis method is a commonly used gas analysis method. It mainly uses the tunable and narrow linewidth characteristics of semiconductor lasers to measure by selecting a specific absorption spectrum line of the gas to be measured. Eliminate the interference of the spectrum of other gases, and realize the rapid online detection of the concentration of the gas to be measured. [0003] In some gas monitoring equipment, due to the complexity of the laser gas detection system, the necessary components, including: semiconductor lasers, temperature controllers, photodetectors, etc., are large in size and complicated in connection with each other, which is not conducive to making Miniaturized and highly integrated gas detection compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39
CPCG01N21/39G01N2021/396
Inventor 方贤才谢金辉耿学明
Owner 武汉市智勤创亿信息技术股份有限公司
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