Calibration system of miniaturized carbon dioxide detector

A carbon dioxide, calibration system technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problem of data accuracy being difficult to meet, and achieve the effect of ensuring accuracy, low cost, convenient and effective laboratory calibration

Pending Publication Date: 2021-06-04
NAT INST OF METROLOGY CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the currently widely used non-dispersive infrared (NDIR) sensor SenseAir K30, which can provide multi-scale observation data, has a lower cost, but its CO 2 The concentration measurement observation results are easily affected by factors such as ambient temperature, humidity, atmospheric pressure, and service life, making the data accuracy difficult to meet the application needs of developing miniaturized carbon dioxide detectors suitable for high-density deployment of carbon monitoring in urban agglomerations

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  • Calibration system of miniaturized carbon dioxide detector
  • Calibration system of miniaturized carbon dioxide detector
  • Calibration system of miniaturized carbon dioxide detector

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Embodiment Construction

[0023] In order to facilitate the understanding of the present invention, the embodiments of the present invention will be described below in conjunction with the accompanying drawings. Those skilled in the art should understand that the following description is only for the convenience of explaining the present invention, not as a specific limitation on its scope.

[0024] The invention provides a set of calibration system for a miniaturized carbon dioxide detector. Preferably, the miniaturized carbon dioxide detector is SenseAir K30, and may also be other types of instruments. The following mainly takes the case that the miniaturized carbon dioxide detector is SenseAir K30 to be explained and illustrated, but it does not mean that the present invention is only applicable to SenseAir K30.

[0025] The carbon dioxide detector SenseAir K30 is a non-dispersive infrared (NDIR) sensor, and the measurement principle of NDIR is based on Beer-Lambert's law, namely:

[0026] I=I 0 ...

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Abstract

The invention discloses a calibration system of a miniaturized carbon dioxide detector, which is characterized in that a non-dispersive infrared theoretical model is established based on the measurement principle of the miniaturized carbon dioxide detector; an experimental device established based on a measurement principle performs environment change test on the instrument according to the dynamic change range of temperature and pressure; and based on the established measurement model and experimental data, a regression model and calibration curve fitting of data is established through fitting analysis between original data of the miniaturized carbon dioxide detector and data of a high-precision carbon dioxide measurement instrument, and calibration of data results of the carbon dioxide detector under different temperatures and pressures is achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, in particular to a calibration system for a miniaturized carbon dioxide detector. Background technique [0002] Urban agglomerations with high density of carbon dioxide (CO 2 ) network observation, can obtain the CO of densely populated areas 2 A new understanding of the law of change, providing continuous and reliable accuracy of atmospheric environmental elements and CO 2 Concentration detection data. CO based on miniaturized carbon dioxide detector 2 Network observation data can provide different urban spaces and different scales of CO 2 Concentration observation data are useful for in-depth understanding of urban-scale carbon sources and sinks, and for studying CO2 emissions at different scales. 2 A deep understanding of the interrelationship between urban emissions and global climate change is crucial. [0003] At present, multi-point observers and mobile monitoring vehicles are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3518G01N21/359
CPCG01N21/3518G01N21/359G01N2201/12746
Inventor 李梦娜胡鹤鸣李春辉崔骊水戚润东曹鹏
Owner NAT INST OF METROLOGY CHINA
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