CN201867366U - Multifunctional practical gas detection optical cell - Google Patents
Multifunctional practical gas detection optical cell Download PDFInfo
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- CN201867366U CN201867366U CN2010206079940U CN201020607994U CN201867366U CN 201867366 U CN201867366 U CN 201867366U CN 2010206079940 U CN2010206079940 U CN 2010206079940U CN 201020607994 U CN201020607994 U CN 201020607994U CN 201867366 U CN201867366 U CN 201867366U
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- concave mirror
- concave lens
- light source
- gas chamber
- diaphragm
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Abstract
A multifunctional practical gas detection optical cell is capable of increasing effective optical path, reducing volume of a gas chamber, increasing utilization rate of optical energy and measurement resolution so as to realize high-precision high-repeatability monitoring. The technical scheme includes that the optical cell is characterized by consisting of a light source (1), a gas chamber (2) and a detector (3), the light source (1) and the detector (3) are arranged on one side of the gas chamber (2), a concave lens (4), a concave lens (5) and a concave lens (6) are disposed inside the gas chamber (2), the concave lens (6) is arranged on the side close to the light source (1), the concave lens (4) and the concave lens (5) are arranged abreast on the other side opposite to the concave lens (6), a window plate (7) and a window plate (8) are arranged among the concave lens (4), the concave lens (5) and the concave lens (6), and adjusting devices of the concave lens (4), the concave lens (5), the concave lens (6), the window plate (7) and the window plate (8) are respectively arranged on the outer side of the gas chamber (2).
Description
Technical field
The utility model belongs to the practical light pool device of gas detection field, especially a kind ofly can increase effective light path, reduce the air chamber volume, improve the utilization factor of luminous energy and improve the resolution of measuring, thereby the multifunctional gas of realizing the monitoring of high precision high duplication detects practical light pond.
Background technology
Along with Increase of population and industrial expansion, China is being faced with very serious environmental pollution problem, and atmospheric pollution level is deepened day by day, and quality of air environment descends day by day, human living and living environment have been constituted grave danger, and this is the significant problem that the whole world faces.The development analytical instrument of monitoring of environmental gas in real time is significant to improving existent environment of people.
The method that is used for the monitor air pollution composition at present is varied, mainly is divided into non-optical method and optical method two big classes.The former has chemical analysis, red, orange, green, blue, yellow (ROGBY) etc., the latter utilizes light and air pollution interaction of molecules mechanism to detect, its method is varied, and the most frequently used technology is uv-visible absorption spectra method, infrared absorption spectroscopy etc. in atmospheric trace gas and dusty gas monitoring at present.The uv-visible absorption spectra method utilizes molecule that the characteristic absorption of optical radiation is carried out gas analysis.Different gas molecules has the characteristic absorption " fingerprint " of oneself, a branch of light passes atmosphere, light can be absorbed by molecular selectivity ground wherein, make it change on intensity He on the spectral composition, compared without the spectrum of crossing atmosphere with original, just can draw the absorption spectrum of atmospheric molecule, not only can determine the existence of some composition qualitatively by analyzing absorption spectrum, but also can analyze the content of these materials quantitatively.
Existing ultraviolet gaseous detection applications light path adopts the monochromatic light journey to detect one-component.By ultraviolet source, the beam split piece, reference part and test section are formed.Following deficiency is arranged: (1) can only survey pure gas; (2) light path is short, and precision is low; (3) do not play the eyeglass of converging action in the light path, the efficiency of light energy utilization is low; (4) by the screw adjusted light intensity, be inconvenient to regulate.
The utility model content
The purpose of this utility model provides a kind ofly can increase effective light path, reduce the air chamber volume, improve the utilization factor of luminous energy and improve the resolution of measuring, thereby the multifunctional gas of realizing the monitoring of high precision high duplication detects practical light pond.
The technical solution of the utility model is: multifunctional gas detects practical light pond, it is characterized in that being made up of light source (1), air chamber (2) and detector (3) three parts, and light source (1) and detector (3) are arranged on a side of air chamber (2); Be provided with concave mirror (4), concave mirror (5), concave mirror (6) in the inside of air chamber (2), wherein concave mirror (6) is arranged on the side near light source (1), concave mirror (4), concave mirror (5) be arranged side by side with the relative opposite side of concave mirror (6), between concave mirror (4), concave mirror (5) and concave mirror (6), be provided with diaphragm (7) and diaphragm (8), on the lateral surface of air chamber (2), be respectively arranged with the regulating device of concave mirror (4), concave mirror (5), concave mirror (6), diaphragm (7) and diaphragm (8).
Effect of the present utility model is: multifunctional gas detects practical light pond, is made up of light source, air chamber and detector three parts, and light source and detector are arranged on a side of air chamber; Be provided with concave mirror 4, concave mirror 5, concave mirror 6 in the inside of air chamber, wherein concave mirror 6 is arranged on the side near light source 1, concave mirror 4, concave mirror 5 are arranged side by side at the opposite side relative with concave mirror 6, be provided with diaphragm 7 and diaphragm 8 between concave mirror 4, concave mirror 5 and concave mirror 6, the lateral surface of air chamber is provided with the regulating device of concave mirror diaphragm.
The utlity model has following characteristics: (1) adopts multireflection technique to increase effective optical length, efficiency of light energy utilization height, and good stability, the precision height has improved the resolution of measuring; (2) concave mirror ultraviolet eyeglass is protected by diaphragm, avoids gaseous contamination, extends working time, and reduces maintenance times; (3) cooperate temperature control and data acquisition process display part, to the accuracy of detection height of gas, stable performance.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is concave mirror and a diaphragm distribution schematic diagram among Fig. 1.
Embodiment
Among Fig. 1, multifunctional gas detects practical light pond, is made up of light source 1, air chamber 2 and detector 3 three parts, and light source 1 and detector 3 are arranged on a side of air chamber 2; Be provided with concave mirror 4, concave mirror 5, concave mirror 6 in the inside of air chamber 2, wherein concave mirror 6 is arranged on the side near light source 1, concave mirror 4, concave mirror 5 are arranged side by side at the opposite side relative with concave mirror 6, between concave mirror 4, concave mirror 5 and concave mirror 6, be provided with diaphragm 7 and diaphragm 8, on the lateral surface of air chamber 2, be respectively arranged with the regulating device (referring to Fig. 2) of concave mirror 4, concave mirror 5, concave mirror 6, diaphragm 7 and diaphragm 8.
Principle of work of the present utility model is: ultraviolet spectral technique is used to measure the light of ultraviolet region, the feature of ultraviolet light is the short and energy height of wavelength, when pollutant absorbs, causes the electronics of its molecule to shift, because the energy that absorbs greater than infrared, detects the variation that absorbs easily.Sulfur dioxide in flue gas (SO
2) one of determination techniques be Difference Absorption non-dispersive ultraviolet spectral technique.In the Difference Absorption technology, utilize narrow absorption bands one or more in the UV spectrum as measuring wavelength, select the non-absorbent narrow band of tested gas molecule as the reference wavelength again, calculate the concentration of tested gas according to lambert Bill (Lambert-Beer) law.
The light that is sent by light source enters air chamber, is concave mirror 4, concave mirror 5, more than 6 reflection back outgoing of concave mirror through the ultraviolet reflective mirror, arrives probe portion.Diaphragm 7 and diaphragm 8 play protection eyeglass and sealing.Unthreaded hole range of adjustment Φ 1.5-Φ 12 regulates the luminous flux size easily and effectively, thereby makes the conforming debugging of electric signal simple and easy to do.
Claims (1)
1. multifunctional gas detects practical light pond, it is characterized in that being made up of light source (1), air chamber (2) and detector (3) three parts, and light source (1) and detector (3) are arranged on a side of air chamber (2); Be provided with concave mirror (4), concave mirror (5), concave mirror (6) in the inside of air chamber (2), wherein concave mirror (6) is arranged on the side near light source (1), concave mirror (4), concave mirror (5) be arranged side by side with the relative opposite side of concave mirror (6), between concave mirror (4), concave mirror (5) and concave mirror (6), be provided with diaphragm (7) and diaphragm (8), on the lateral surface of air chamber (2), be respectively arranged with the regulating device of concave mirror (4), concave mirror (5), concave mirror (6), diaphragm (7) and diaphragm (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206079940U CN201867366U (en) | 2010-11-16 | 2010-11-16 | Multifunctional practical gas detection optical cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206079940U CN201867366U (en) | 2010-11-16 | 2010-11-16 | Multifunctional practical gas detection optical cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867366U true CN201867366U (en) | 2011-06-15 |
Family
ID=44138518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206079940U Expired - Fee Related CN201867366U (en) | 2010-11-16 | 2010-11-16 | Multifunctional practical gas detection optical cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063595A (en) * | 2012-12-19 | 2013-04-24 | 北京农业智能装备技术研究中心 | Detection device of ripeness degree of grapes and application thereof |
-
2010
- 2010-11-16 CN CN2010206079940U patent/CN201867366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063595A (en) * | 2012-12-19 | 2013-04-24 | 北京农业智能装备技术研究中心 | Detection device of ripeness degree of grapes and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGDAO JIAMING MONITORING AND CONTROL CO., LTD. Free format text: FORMER NAME: QINGDAO JIAMING MEASURING AND CONTROL INSTRUMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 266000 Shandong city of Qingdao province Fuzhou Northroad 169-919 Patentee after: QINGDAO JIAMING MEASUREMENT AND CONTROL TECHNOLOGY CO., LTD. Address before: 266000 Shandong city of Qingdao province Fuzhou Northroad 169-919 Patentee before: Qingdao Jiaming Measurement and Control Instrument Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20171116 |