CN104990883A - Device for detecting gas concentration by spectrometer - Google Patents
Device for detecting gas concentration by spectrometer Download PDFInfo
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- CN104990883A CN104990883A CN201510451315.2A CN201510451315A CN104990883A CN 104990883 A CN104990883 A CN 104990883A CN 201510451315 A CN201510451315 A CN 201510451315A CN 104990883 A CN104990883 A CN 104990883A
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- spectrometer
- windowpane
- air chamber
- gas concentration
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Abstract
The invention discloses a device for detecting gas concentration by a spectrometer; the device includes a lamp box, a detection gas chamber, a guide rail, the spectrometer and a computer; a light source is arranged inside the lamp box; the side face of the lamp box is provided with a first glass window; an opening of one end of the detection gas chamber directly faces to and covers the first glass window, and the end face of the other end of the detection gas chamber is provided with a second glass window; a light inlet of the spectrometer directly faces to the second glass window, the output end of the spectrometer is connected with the input end of the computer, and the spectrometer is fixed on the guide rail; the side face of the detection gas chamber is provided with a gas inlet and a gas outlet. The device can detect the gas concentration continuously in real time, and is safe and effective, and high in detection accuracy.
Description
Technical field
The present invention relates to a kind of device detecting gas concentration, be specifically related to a kind of device utilizing spectrometer to detect gas concentration.
Background technology
In recent years, along with industrialized development, the toxic and harmful that petrochemical complex production, sewage treatment plant, coal burning etc. produce causes serious harm to ecologic environment and human health, so gas concentration in detection living environment is significant with safety in production to the safety and Health of the mankind, this is meaning of the present invention just also.
The method of current gas detect is mainly chemical method and optical means.Chemical method can measure a variety of gas, and the needs of some gas detect can be met, but these methods all can not be used for measuring in real time continuously, and can produce adverse influence to the health of staff for some poisonous gases, and the precision detected is poor simultaneously.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of device utilizing spectrometer to detect gas concentration, the concentration of the detection gas that this device can be real-time continuously, and safe and effective, and accuracy of detection is high.
For achieving the above object, the device utilizing spectrometer to detect gas concentration of the present invention comprises lamp box, detects air chamber, guide rail, spectrometer and computing machine;
Described lamp box inside is provided with light source, the side of lamp box is provided with the first windowpane, detect air chamber one end opening just to and cover on described first windowpane, the end face detecting the air chamber other end is provided with the second windowpane, the light entrance of spectrometer is just to described second windowpane, the output terminal of spectrometer is connected with the input end of computing machine, and spectrometer is fixed on guide rail, and the side detecting air chamber is provided with air intake opening and gas outlet.
Described air intake opening and gas outlet are respectively equipped with the two ends detecting air chamber side, and air intake opening and spectrometer are positioned at the same side, and gas outlet and lamp box are positioned at the same side.
The side of spectrometer is fixed on guide rail by fixture.
First windowpane and the second windowpane are circular configuration.
Detection air chamber is cylindrical structural, the diameter 2%-5% larger than the diameter detecting air chamber xsect of the first windowpane.
Described light source is ultraviolet source, visible light source or infrared light light source.
Described first windowpane and the second windowpane are all made by colouless optical glass.
The present invention has following beneficial effect:
The device utilizing spectrometer to detect gas concentration of the present invention is in testing process, being passed into by the inlet port of gas to be measured air chamber after testing detects in air chamber, discharged by the gas outlet detecting air chamber again, utilized the absorption spectrum of spectral technique quick obtaining gaseous sample to be measured by spectrometer simultaneously, then the standard air spectrum that the light sent with light source records when propagating in atmosphere contrasts, composition and the concentration of gas to be measured can be obtained according to the intensity of the position of absorption peak in spectrum and absorption peak, relative to chemical detection technique, it is fast that the present invention has detection speed, structure is simple, without the need to extracting gaseous sample and not destroying the advantages such as tested gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 be lamp box, 2 be fixture, 3 be spectrometer, 4 be guide rail for computing machine, 5 is the second windowpane, 6 for detecting air chamber, 7,8 be air intake opening, 9 for gas outlet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, the device utilizing spectrometer to detect gas concentration of the present invention, is characterized in that, comprises lamp box 1, detects air chamber 6, guide rail 7, spectrometer 3 and computing machine 4; Described lamp box 1 inside is provided with light source, the side of lamp box 1 is provided with the first windowpane, detect air chamber 6 one end opening just to and cover on described first windowpane, the end face detecting air chamber 6 other end is provided with the second windowpane 5, the light entrance of spectrometer 3 is just to described second windowpane 5, the output terminal of spectrometer 3 is connected with the input end of computing machine 4, and spectrometer 3 is fixed on guide rail 7, and the side detecting air chamber 6 is provided with air intake opening 8 and gas outlet 9.
It should be noted that, described air intake opening 8 and gas outlet 9 are respectively equipped with the two ends detecting air chamber 6 side, and air intake opening 8 and spectrometer 3 are positioned at the same side, and gas outlet 9 and lamp box 1 are positioned at the same side; The side of spectrometer 3 is fixed on guide rail 7 by fixture 2; First windowpane and the second windowpane 5 are circular configuration; Detecting air chamber 6 is cylindrical structural, the diameter 2%-5% larger than the diameter detecting air chamber 6 xsect of the first windowpane; Described light source is ultraviolet source, visible light source or infrared light light source; Described first windowpane and the second windowpane 5 are all made by colouless optical glass.
Specific operation process of the present invention is:
Open light source, then being entered into from air intake opening 8 by gas to be measured detects in air chamber 6, export from gas outlet 9 again, simultaneously the light that sends of light source through successively through the first windowpane, detect air chamber 6 and the second windowpane 5 enters into spectrometer 3, spectrometer 3 utilizes the absorption spectrum of spectral technique quick obtaining gas to be measured, the standard air spectrum that the light sent with light source again records when propagating in atmosphere contrasts, obtain the position of absorption peak and the intensity of absorption peak in spectrum, then obtain composition and the concentration of gas to be measured according to the position of absorption peak in spectrum and the intensity of absorption peak.
The foregoing is only one embodiment of the present invention, it not whole or unique embodiment, the conversion of those of ordinary skill in the art by reading instructions of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (7)
1. utilize spectrometer to detect a device for gas concentration, it is characterized in that, comprise lamp box (1), detect air chamber (6), guide rail (7), spectrometer (3) and computing machine (4);
Described lamp box (1) inside is provided with light source, the side of lamp box (1) is provided with the first windowpane, detect air chamber (6) one end opening just to and cover on described first windowpane, the end face detecting air chamber (6) other end is provided with the second windowpane (5), the light entrance of spectrometer (3) is just to described second windowpane (5), the output terminal of spectrometer (3) is connected with the input end of computing machine (4), spectrometer (3) is fixed on guide rail (7), the side detecting air chamber (6) is provided with air intake opening (8) and gas outlet (9).
2. the device utilizing spectrometer to detect gas concentration according to claim 1, it is characterized in that, described air intake opening (8) and gas outlet (9) are respectively equipped with the two ends detecting air chamber (6) side, and air intake opening (8) and spectrometer (3) are positioned at the same side, gas outlet (9) and lamp box (1) are positioned at the same side.
3. the device utilizing spectrometer to detect gas concentration according to claim 1, is characterized in that, the side of spectrometer (3) is fixed on guide rail (7) by fixture (2).
4. the device utilizing spectrometer to detect gas concentration according to claim 1, it is characterized in that, the first windowpane and the second windowpane (5) are circular configuration.
5. the device utilizing spectrometer to detect gas concentration according to claim 4, it is characterized in that, detecting air chamber (6) is cylindrical structural, the diameter 2%-5% larger than the diameter detecting air chamber (6) xsect of the first windowpane.
6. the device utilizing spectrometer to detect gas concentration according to claim 1, it is characterized in that, described light source is ultraviolet source, visible light source or infrared light light source.
7. the device utilizing spectrometer to detect gas concentration according to claim 1, it is characterized in that, described first windowpane and the second windowpane (5) are all made by colouless optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451315.2A CN104990883A (en) | 2015-07-28 | 2015-07-28 | Device for detecting gas concentration by spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451315.2A CN104990883A (en) | 2015-07-28 | 2015-07-28 | Device for detecting gas concentration by spectrometer |
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| Publication Number | Publication Date |
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| CN104990883A true CN104990883A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510451315.2A Pending CN104990883A (en) | 2015-07-28 | 2015-07-28 | Device for detecting gas concentration by spectrometer |
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| CN (1) | CN104990883A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768002A (en) * | 2017-02-08 | 2017-05-31 | 王杨 | A kind of environmental protection index parameter testing instrument |
| CN107389558A (en) * | 2016-04-05 | 2017-11-24 | 唯亚威解决方案股份有限公司 | Light pipe for spectrum analysis |
| CN109211906A (en) * | 2018-10-19 | 2019-01-15 | 清华大学合肥公共安全研究院 | A kind of gas componant detection device |
| CN111912806A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | NOx gas concentration detection platform |
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| CN101256140A (en) * | 2008-03-17 | 2008-09-03 | 哈尔滨工业大学 | Portable apparatus and measuring method for monitoring gas concentration of sulphur dioxide and nitrous oxide meanwhile |
| CN103852437A (en) * | 2014-03-22 | 2014-06-11 | 中国科学院合肥物质科学研究院 | System and method for measuring infrared spectrum in greenhouse gas emission flux |
| CN203798725U (en) * | 2013-11-28 | 2014-08-27 | 宇星科技发展(深圳)有限公司 | Ozone analysis system |
| CN104614316A (en) * | 2015-02-11 | 2015-05-13 | 中国科学技术大学 | Infrared spectrometer and reaction tank thereof |
| CN104736989A (en) * | 2012-10-18 | 2015-06-24 | Vuv分析公司 | Vacuum ultraviolet absorption spectroscopy system and method |
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2015
- 2015-07-28 CN CN201510451315.2A patent/CN104990883A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256140A (en) * | 2008-03-17 | 2008-09-03 | 哈尔滨工业大学 | Portable apparatus and measuring method for monitoring gas concentration of sulphur dioxide and nitrous oxide meanwhile |
| CN104736989A (en) * | 2012-10-18 | 2015-06-24 | Vuv分析公司 | Vacuum ultraviolet absorption spectroscopy system and method |
| CN203798725U (en) * | 2013-11-28 | 2014-08-27 | 宇星科技发展(深圳)有限公司 | Ozone analysis system |
| CN103852437A (en) * | 2014-03-22 | 2014-06-11 | 中国科学院合肥物质科学研究院 | System and method for measuring infrared spectrum in greenhouse gas emission flux |
| CN104614316A (en) * | 2015-02-11 | 2015-05-13 | 中国科学技术大学 | Infrared spectrometer and reaction tank thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389558A (en) * | 2016-04-05 | 2017-11-24 | 唯亚威解决方案股份有限公司 | Light pipe for spectrum analysis |
| US11442004B2 (en) | 2016-04-05 | 2022-09-13 | Viavi Solutions Inc. | Light pipe for spectroscopy |
| CN106768002A (en) * | 2017-02-08 | 2017-05-31 | 王杨 | A kind of environmental protection index parameter testing instrument |
| CN109211906A (en) * | 2018-10-19 | 2019-01-15 | 清华大学合肥公共安全研究院 | A kind of gas componant detection device |
| CN111912806A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | NOx gas concentration detection platform |
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Application publication date: 20151021 |
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