CN103528982A - Instrument for measuring concentration of carbon dioxide - Google Patents
Instrument for measuring concentration of carbon dioxide Download PDFInfo
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- CN103528982A CN103528982A CN201210232978.1A CN201210232978A CN103528982A CN 103528982 A CN103528982 A CN 103528982A CN 201210232978 A CN201210232978 A CN 201210232978A CN 103528982 A CN103528982 A CN 103528982A
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- gas detection
- sensing chamber
- carbon dioxide
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Abstract
The invention provides an instrument for measuring concentration of carbon dioxide, relating to the field of bioengineering. The instrument comprises an infrared light source, a gas detection room, two optical power meters, a data processing display module and a displayer, and is characterized in that the gas detection room is a passage, the two optical power meters are respectively arranged at two sides of the gas detection room, the infrared light source is at one side of the gas detection room, the two optical power meters are connected with the data processing display module through data lines, the data processing display module is used for analyzing and converting the collected data so as to obtain the concentration of the carbon dioxide and display, the material of the gas detection room is light-proof, two groups of holes are formed in the wall of the gas detection room, two holes of one group have the same size and are respectively provided with a groove, two holes of the other group are respectively a large hole and a small hole, and the optical power meters are embedded on the wall of the gas detection room, are on the holes of the same size and are fixed by the built-in grooves. As two optical power meters are used, the incident light intensity and the emergent light intensity can be recorded accurately and timely, so as to obtain the concentration of carbon dioxide and a curve chart at current time, therefore, the instrument is simple and practical.
Description
Technical field
The present invention relates to bioengineering field, relate in particular to a kind of instrument of measuring gas concentration lwevel.
Background technology
Along with the progress of human society and scientific and technical development, people's living standard has obtained rapid raising, commercial production scale also expands rapidly, but caused the discharge of carbon dioxide to be doubled and redoubled simultaneously, as greenhouse effect, Desertification Degree of Land acceleration etc., have a strong impact on and are destroying the mankind's living environment.In addition, carbon dioxide is the primary raw material of crop photosynthesis, the whether suitable growth that directly affects crop of its content.In recent years, enhancing along with people's environmental consciousness, the progress of scientific-technical progress, the content of fast detecting carbon dioxide how, cut down the discharge of carbon dioxide, become the problem of governments at all levels and numerous knowledgeable people's special concern, therefore studied and design carbon dioxide testing circuit tool and be of great significance.
Detect at present the problems such as the method for carbon dioxide mainly contains chemical method, electrochemical process, vapor-phase chromatography, volumetric precipitation method etc., and these method ubiquities price, and universality is poor, and measuring accuracy is also lower.And sensor method has safe and reliable, quick direct-reading, can continuous monitoring etc. advantage.The deficiencies such as the carbon dioxide sensor of current various detection use mainly contains solid electrolyte formula, barium titanate composite oxides condenser type, electricity and leads change type thick-film type etc., and these sensors exist the poor selectivity of gas, are prone to wrong report, need frequent calibration, serviceable life is shorter.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of method of carbon dioxide concentration measurement is provided, detected gas is imported to gas sensing chamber, by infrared light supply, irradiate, record strength values, by data, calculate gas concentration lwevel.
The technical solution used in the present invention: carbon dioxide concentration measurement instrument, comprise infrared light supply, gas sensing chamber, light power meter, data processing display module, display, it is characterized in that, gas sensing chamber is a path, in gas sensing chamber both sides, place two light power meters, infrared light supply is positioned at gas sensing chamber one side, two light power meters are connected with data processing display module by data line, by data processing display module, the data analysis of collection is changed, obtained gas concentration lwevel and show.
Described gas sensing chamber material has two groups of holes on the wall of light tight processing ， gas sensing chamber, and wherein one group of two corresponding hole size is identical, and groove is set, two holes corresponding to another group small one and large one.
Described light power meter is embedded in gas and detects on locular wall, is positioned on the hole that two sizes are identical, by built-in groove, is fixed.
The invention has the beneficial effects as follows: use two light power meters, instant accurate recording incident intensity and emergent light intensity, thus obtain concentration and the real-time curve chart of CO2, simple and practical.
Accompanying drawing explanation
Fig. 1 is the layout of carbon dioxide concentration measurement instrument of the present invention: 1 infrared light supply, 2 gas sensing chamber, 3 light power meters, 4 data processing display modules.
Embodiment
Illustrate as follows by reference to the accompanying drawings:
It is the philosophy of light absorption that lambert-Bill has determined, and is applicable to all electromagnetic radiation and all extinction materials, comprises gas, solid, liquid, molecule, atom, ion, is the quantitative basis of absorption photometry, colorimetric analysis and photoelectric colorimetry.By Lambert-Beer's law, can extrapolate I=I.Exp (μ CL); I wherein.For incident intensity, I is emergent light intensity, and μ is absorption coefficient, and C is gas concentration, and L is gas thickness.
Carbon dioxide meter, comprise infrared light supply 1, gas sensing chamber 2, light power meter 3, data processing display module 4, it is characterized in that, gas sensing chamber 2 is a path, in gas sensing chamber 2 both sides, place two light power meters 3, infrared light supply 1 is positioned at gas sensing chamber 2 one sides, and two light power meters 3 are connected with data processing display module 4 by data line, by data processing display module, the data analysis of collection is calculated, obtain gas concentration lwevel and show.Gas sensing chamber material is through light tight processing, on the wall of gas sensing chamber, there are two groups of holes, wherein one group of two corresponding hole size is identical, groove is set, two holes corresponding to another group small one and large one, detected gas enters aperture by macropore and goes out, and is conducive to the infrared ray that CO2 in detected gas can fully effectively absorbing wavelength be 4.26.
Light power meter is embedded in gas and detects on locular wall, is positioned on the hole that two sizes are identical, by built-in groove, is fixed.
The light power meter near apart from infrared light supply can record incident light intensity, and the light power meter of opposite side can record outgoing light intensity.Calculating by data processing display module is calculated the densimeter of carbon dioxide show.
The above, it is only the preferred embodiment of this explanation, not this explanation is done to any pro forma restriction, every any simple modification, equivalent variations and modification of above embodiment being done according to the technical spirit of this explanation, all belongs in the scope of this explanation technical scheme.
Claims (3)
1. titanium dioxide concentration carbon measuring instrument, comprise infrared light supply, gas sensing chamber, light power meter, data processing display module, display, it is characterized in that, gas sensing chamber is a path, in gas sensing chamber both sides, place two light power meters, infrared light supply is positioned at gas sensing chamber one side, and two light power meters are connected with data processing display module by data line, by data processing display module, the data analysis of collection is changed, obtained gas concentration lwevel and show.
2. titanium dioxide concentration carbon measuring instrument according to claim 1, it is characterized in that described gas sensing chamber material is through light tight processing, on the wall of gas sensing chamber, there are two groups of holes, wherein one group of two corresponding hole size is identical, groove is set, two holes corresponding to another group small one and large one.
3. carbon dioxide concentration measurement instrument according to claim 1, is characterized in that described light power meter is embedded in gas and detects on locular wall, is positioned on the hole that two sizes are identical, by built-in groove, is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232978.1A CN103528982A (en) | 2012-07-06 | 2012-07-06 | Instrument for measuring concentration of carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210232978.1A CN103528982A (en) | 2012-07-06 | 2012-07-06 | Instrument for measuring concentration of carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103528982A true CN103528982A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210232978.1A Pending CN103528982A (en) | 2012-07-06 | 2012-07-06 | Instrument for measuring concentration of carbon dioxide |
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| CN (1) | CN103528982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937488A (en) * | 2021-04-28 | 2021-06-11 | 浙江合众新能源汽车有限公司 | Biological monitoring device in automobile cabin |
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2012
- 2012-07-06 CN CN201210232978.1A patent/CN103528982A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937488A (en) * | 2021-04-28 | 2021-06-11 | 浙江合众新能源汽车有限公司 | Biological monitoring device in automobile cabin |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |