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Gas detection device, system and method based on TDLAS technology

A gas detection system and gas detection technology are applied in the system and method to achieve the effect of avoiding too large fluctuation, eliminating influence and wide application scenarios

Pending Publication Date: 2019-12-20
SHANGHAI TOFFLON SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, the use of TDLAS detection devices has not been popularized. The detection devices in production still need to undergo strict verification methods to verify their reliability before they can be promoted and used in the market.

Method used

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  • Gas detection device, system and method based on TDLAS technology
  • Gas detection device, system and method based on TDLAS technology
  • Gas detection device, system and method based on TDLAS technology

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0068] like figure 1 As shown, a gas detection device based on TDLAS technology provided by the present invention includes an incident device 4, a collimation device 11, a connection device 5, a receiving device 8, a power supply module, an arithmetic module, and the like.

[0069] The connecting device 5 is used to connect the incident device 4 with the channel 6 for introducing the gas to be tested and the receiving device 8 ...

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Abstract

The invention relates to a gas detection device based on the TDLAS technology. The gas detection device is characterized by comprising an incidence device, a collimation device, a connecting device, areceiving device, a power module and a computing module. The invention further provides a gas detection system based on the TDLAS technology, a gas flow rate detection method based on the TDLAS technology, a gas concentration detection method based on the TDLAS technology, a gas quality detection method based on the TDLAS technology, a gas flow rate verification method based on the TDLAS technology, a gas concentration verification method based on the TDLAS technology, and a gas quality verification method based on the TDLAS technology. According to the hygienic gas detection method and detection system based on the TDLAS technology provided by the invention, modular packaging is performed on the detection device to realize the tightness of the incidence device and the receiving device and to effectively exclude the influence of environmental factors on the detection result.

Description

technical field [0001] The invention relates to a gas detection device, system and method, in particular to a gas detection device, a gas detection system, a gas detection method and a verification method based on TDLAS technology. It meets the requirements of hygienic grade, and can be applied to the production of high-precision products and the occasions that have hygienic and clean grade requirements such as food, medicine, and cosmetics. Background technique [0002] TDLAS technology can tune semiconductor diode laser absorption spectroscopy technology, which is to use the narrow line width of the laser (generally less than 20MHz, much smaller than the absorption line width of the molecule) and wavelength tunable (allowing the wavelength of the laser to scan through an absorption line of gas molecules) The absorption spectrum signal of the gas is obtained by scanning the absorption spectrum of the gas molecule at high frequency. [0003] According to Beer-Lambert's law,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39
CPCG01N21/39G01N2021/394
Inventor 郑效东
Owner SHANGHAI TOFFLON SCI & TECH CO LTD
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