CN201116916Y - Optical spectrum monitoring device used for analyzing gas component concentration - Google Patents
Optical spectrum monitoring device used for analyzing gas component concentration Download PDFInfo
- Publication number
- CN201116916Y CN201116916Y CNU2007200757962U CN200720075796U CN201116916Y CN 201116916 Y CN201116916 Y CN 201116916Y CN U2007200757962 U CNU2007200757962 U CN U2007200757962U CN 200720075796 U CN200720075796 U CN 200720075796U CN 201116916 Y CN201116916 Y CN 201116916Y
- Authority
- CN
- China
- Prior art keywords
- monitoring device
- lens
- spectrum monitoring
- light source
- sample cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a spectrum monitoring device for analyzing gas component concentration, which relates to the technical field of on-line monitoring, and solves the technical problems of simplifying the structure of a spectromonitor and lowering production cost, the monitoring device comprises a measurement light source, a sample pool, a fiber-optical spectrograph, wherein at least one end of both sides of the sample pool is provided with a lens, the light input end of the sample pool is connected with the measurement light source, and the light output end of the sample pool is connected with the fiber-optical spectrograph. The lens comprises a convex lens and a concave lens. The lens comprises a combined lens or a lens group. The measurement light source is the measurement light source of a deuterium lamp, an xenon lamp, a halogen lamp and the like. The light output end of the sample pool is connected with the fiber-optical spectrograph through light guide fiber (optical fiber). The spectrum monitoring device has the advantages that the spectrum monitoring device simplifies the structure of a spectrum monitoring device, lowers production cost and reduces size and volume, which enables a gas component concentration spectrum monitoring device to be applicable for on-site environments and real-time monitoring.
Description
Technical field
The utility model relates to on-line monitoring technique, particularly relates to a kind of technology that is used for continuously the spectroscopic methodology monitoring of analytical gas constituent concentration.
Background technology
All need gas concentration is carried out continuous monitoring and analysis in many fields such as Chemical Manufacture, environmental monitoring, emission monitorings.Spectroscopic methodology is a kind of important method of carrying out the gas concentration continuous monitoring.In the spectroscopic methodology gas composition concentration was analyzed, gas stream was crossed a sample cell, and measuring light then from an end incident of sample cell, behind tested gas, is gone out from the other end transmission of sample cell, enters spectrometric instrument or enters fiber spectrometer by optical fiber.In this surveying instrument, how to arrange light path, make the structure of instrument simple and reliable as far as possible, reducing size and volume is very important for the instrument that is used for site environment, monitoring on the spot.
The utility model content
At the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind of structure that can simplify instrument, reduces cost, and reduces the optical spectrum monitoring device that is used for the analytical gas constituent concentration of size and volume.
In order to solve the problems of the technologies described above, a kind of optical spectrum monitoring device that is used for the analytical gas constituent concentration provided by the utility model, comprise measurement light source, sample cell, fiber spectrometer, it is characterized in that: at least one end is provided with lens in two ends of described sample cell, the light input end of described sample cell connects measurement light source, and the light output end of described sample cell connects fiber spectrometer.
Further, described lens comprise convex lens, concavees lens.
Further, described lens comprise compound lens or lens combination.
Further, described measurement light source is measurement light source such as deuterium lamp, xenon lamp, Halogen lamp LED.
Further, the light output end of described sample cell connects fiber spectrometer through light transmitting fiber (optical fiber).
The optical spectrum monitoring device that is used for the analytical gas constituent concentration that utilizes the utility model to provide, owing to adopted the structure that sample cell two ends and front and back lens are directly combined, make sample cell can simplify the structure of online monitoring instrument, thereby simplified the structure of optical spectrum monitoring device, reduce cost, reduce size and volume, make gas composition concentration optical spectrum monitoring device can be more suitable for being used for site environment, monitoring on the spot.
Description of drawings
Fig. 1 is the optical spectrum monitoring device synoptic diagram that is used for the analytical gas constituent concentration that the sample cell two ends of the utility model embodiment are convex lens structures;
Fig. 2 is the optical spectrum monitoring device structural representation that is used for the analytical gas constituent concentration that the sample cell two ends of the another kind of embodiment of the utility model are convex lens structures;
Fig. 3 is the optical spectrum monitoring device structural representation that is used for the analytical gas constituent concentration that the sample cell two ends of the utility model embodiment are the plano lens structure.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
A kind of optical spectrum monitoring device that is used for the analytical gas constituent concentration that the utility model embodiment is provided, comprise measurement light source, sample cell, fiber spectrometer, it is characterized in that: the windowpane of two ends is respectively custom-designed lens before and after the described sample cell, these lens are according to the apparatus structure designing requirement, wavelength coverage as measuring light, required focal length, achromatism and aberration etc. designs.Described lens can be concavees lens, plano lens, various forms of lens such as convex lens; The light that light source sends is directly converged by the lens of sample cell one end, form measuring beam, pass the measurement zone of sample cell after, converge through the lens of the sample cell other end, enter fiber spectrometer incident end or enter a light transmitting fiber (optical fiber), optical fiber enters the incident end of spectrometer again.
Embodiment one,
Referring to shown in Figure 1, one measurement light source 6, can be the light that light sources such as deuterium lamp, xenon lamp, Halogen lamp LED send, convex lens 2 through sample cell 1 one ends converge, form measuring beam, behind the measurement zone in the sample cell 1, transmitted light transmits from the convex lens 3 of the sample cell other end, directly enters the entrance slit 8 of spectrometer 7 ' incident end.Sample cell 1 is provided with gas feed 4, gas vent 5.
Embodiment two,
Referring to shown in Figure 2, one measurement light source 6, can be the light that light sources such as deuterium lamp, xenon lamp, Halogen lamp LED send, convex lens 2 through sample cell 1 one ends converge, form measuring beam, behind the measurement zone in the sample cell 1, transmitted light transmits from the convex lens 3 of the sample cell other end, enter a light transmitting fiber 9 after converging, enter the incident end of spectrometer 7 again through light transmitting fiber 9.Sample cell 1 is provided with gas feed 4, gas vent 5.
Embodiment three,
Referring to shown in Figure 3, one measurement light source 6, can be the light that light sources such as deuterium lamp, xenon lamp, Halogen lamp LED send, if the luminous intensity of light source is enough strong, light directly enters from the flat glass window 2 ' of sample cell 1 ' one end, and behind the measurement zone in the sample cell 1 ', transmitted light transmits from the flat glass window 3 ' of the sample cell other end, enter a light transmitting fiber 9 after converging, enter the incident end of spectrometer 7 again through light transmitting fiber 9.Sample cell 1 is provided with gas feed 4, gas vent 5.The flat glass window can be quartz window and other optical windshield according to the difference of measuring required optical wavelength, as K9, and BK7 etc.
The utility model also can be used for other device that adopts analysis of spectral method gaseous sample composition and concentration.
Claims (5)
1, a kind of optical spectrum monitoring device that is used for the analytical gas constituent concentration, comprise measurement light source, sample cell, fiber spectrometer, it is characterized in that: at least one end is provided with lens in two ends of described sample cell, the light input end of described sample cell connects measurement light source, and the light output end of described sample cell connects fiber spectrometer.
2, the optical spectrum monitoring device that is used for the analytical gas constituent concentration according to claim 1 is characterized in that, described lens comprise convex lens, concavees lens.
3, the optical spectrum monitoring device that is used for the analytical gas constituent concentration according to claim 1 is characterized in that, described lens comprise compound lens or lens combination.
4, the optical spectrum monitoring device that is used for the analytical gas constituent concentration according to claim 1 is characterized in that, described measurement light source is deuterium lamp, xenon lamp, Halogen lamp LED measurement light source.
5, the optical spectrum monitoring device that is used for the analytical gas constituent concentration according to claim 1 is characterized in that, the light output end of described sample cell connects fiber spectrometer through light transmitting fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200757962U CN201116916Y (en) | 2007-11-21 | 2007-11-21 | Optical spectrum monitoring device used for analyzing gas component concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200757962U CN201116916Y (en) | 2007-11-21 | 2007-11-21 | Optical spectrum monitoring device used for analyzing gas component concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201116916Y true CN201116916Y (en) | 2008-09-17 |
Family
ID=39991492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200757962U Expired - Fee Related CN201116916Y (en) | 2007-11-21 | 2007-11-21 | Optical spectrum monitoring device used for analyzing gas component concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201116916Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926201A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Device for measuring SO2 gaseous spectrum in SF6 decomposition matter and method for obtaining SO2 gas concentration by using same |
| CN106290168A (en) * | 2015-05-18 | 2017-01-04 | 深圳迈瑞生物医疗电子股份有限公司 | Optical detecting unit, the liquid chromatography system using this optical detecting unit and liquid phase chromatography analytical method |
| CN109239010A (en) * | 2018-09-11 | 2019-01-18 | 杭州因诺维新科技有限公司 | Gas monitoring method based on multiline spectral technique |
-
2007
- 2007-11-21 CN CNU2007200757962U patent/CN201116916Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926201A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Device for measuring SO2 gaseous spectrum in SF6 decomposition matter and method for obtaining SO2 gas concentration by using same |
| CN106290168A (en) * | 2015-05-18 | 2017-01-04 | 深圳迈瑞生物医疗电子股份有限公司 | Optical detecting unit, the liquid chromatography system using this optical detecting unit and liquid phase chromatography analytical method |
| CN109239010A (en) * | 2018-09-11 | 2019-01-18 | 杭州因诺维新科技有限公司 | Gas monitoring method based on multiline spectral technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105424635A (en) | Ultraviolet spectrum flue gas analyzer | |
| CN102023132B (en) | Gas-sensitive absorption device based on hollow optical fibre | |
| CN103512868B (en) | A kind of microcell laser probe analytical instrument based on fibre-optic waveguide | |
| CN105606571B (en) | A kind of aspherical reflective laser induction excitation of spectra/collection system | |
| CN202083627U (en) | Optical fiber air DOAS measurement system based on Cassegrain telescope structure | |
| CN102042961B (en) | Fiber reflecting type micro-nano system spectrophotometer and application thereof | |
| CN103630523A (en) | Laser induction spectrum generating device used for water quality optical analyzer | |
| CN205317662U (en) | UV spectrum flue gas analyzer | |
| CN206945540U (en) | A kind of efficient detection device based on Laser-induced plasma spectroscopy | |
| CN110018123A (en) | A kind of In situ spectroscopic fado parameter water quality monitoring method and device | |
| CN104931474A (en) | Cement raw material quality online laser detection device and method | |
| CN201116916Y (en) | Optical spectrum monitoring device used for analyzing gas component concentration | |
| CN101158637A (en) | Sample pool used for on-line proving of monitoring instrument | |
| CN101158639A (en) | Gas composition concentration optical spectrum monitoring device | |
| CN116380872A (en) | Laser-induced breakdown spectroscopy aerosol single-particle high-sensitivity detection device | |
| CN201210140Y (en) | Multi-parameter laser wavelength modulation spectrum detection apparatus used in fire field | |
| CN101000298A (en) | Investigator based on optical fibre raster | |
| CN101980003B (en) | Open long-path broad-spectrum gas measurement system | |
| CN101634626A (en) | Active-passive integrated atmospheric pollution measuring system and measuring method thereof | |
| CN102042876B (en) | Remote online spectrum detection system | |
| CN101241068A (en) | Multi- light path optical absorption aerometric measurement instrument | |
| US5953120A (en) | Optical probe | |
| CN101135641A (en) | Fluorescence spectrophotometer on-line or remote measurement | |
| CN108051384A (en) | A kind of portable difference absorption spectrum gas measurement system based on hollow optic fibre | |
| CN104406941A (en) | Multifunctional food safety comprehensive detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20091221 |