CN105548016A - Gas detecting chamber - Google Patents
Gas detecting chamber Download PDFInfo
- Publication number
- CN105548016A CN105548016A CN201511015836.XA CN201511015836A CN105548016A CN 105548016 A CN105548016 A CN 105548016A CN 201511015836 A CN201511015836 A CN 201511015836A CN 105548016 A CN105548016 A CN 105548016A
- Authority
- CN
- China
- Prior art keywords
- total reflection
- reflection lens
- gas detection
- detection cell
- lens
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 26
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
The invention discloses a gas detecting chamber which comprises a first total reflection lens (1) and a second total reflection lens (2), wherein the cross sections of the first total reflection lens (1) and the second total reflection lens (2) are of a right triangle shape, and the slope of the first total reflection lens (1) is opposite to the slope of the second total reflection lens (2). The gas detecting chamber provided by the invention can effectively reduce the volume of the gas detecting chamber under the condition of ensuring longer measuring optical distance and is lower in manufacturing cost.
Description
Technical field
The invention belongs to gas sensor domain, relate to a kind of gas detection cell.
Background technology
In modern production, life, along with the raising of people's living standard, the requirement that the mankind purify ecologic environment is also more and more higher, and the real-time detection therefore for the harmful gas in air seems particularly important.Especially as the field such as coal and chemical industry, be problem demanding prompt solution to monitoring and prediction that is poisonous in air, harmful gas.And the application of fiber gas sensor in this field and research just flourish.
The monitoring of environmental of fiber gas sensor can be open measurement, and also can be detection of bleeding, it is higher that the longer precision of light path measured by air chamber.When air chamber measurement light path is longer, the volume of required air chamber is large, and cost of manufacture is higher, and optical maser wavelength is limited.
Therefore, need a kind of new gas detection cell to solve the problem.
Summary of the invention
The object of the invention is the defect of the air chamber for gas sensor in the prior art, a kind of new gas detection cell is provided.
For achieving the above object, gas detection cell of the present invention can adopt following technical scheme:
A kind of gas detection cell, comprise the first total reflection lens and the second total reflection lens, the xsect of described first total reflection lens and the second total reflection lens is right-angle triangle, and the inclined-plane of described first total reflection lens and the inclined-plane of described second total reflection lens are oppositely arranged.
Further, the inclined-plane of described first total reflection lens and the inclined-plane of described second total reflection lens be arranged in parallel.
Further, the xsect of described first total reflection lens and the second total reflection lens is right angled isosceles triangle.
Further, described first total reflection lens is identical with the xsect size of the second total reflection lens.
Further, the right-angle side of described first total reflection lens and the second total reflection lens lays respectively at the cornerwise two ends of rectangle.
Further, equal plated film on the inclined-plane of described first total reflection lens and the inclined-plane of described second total reflection lens.Reduce the reflection of lens.
Further, also comprise shell, the two ends, inner side of described shell are provided with groove, described first total reflection lens and the second total reflection lens are all arranged in described groove, the two ends of described shell are respectively arranged with the first collimating mirror and the second collimating apparatus, and described first collimating mirror and the second collimating apparatus aim at the inclined-plane of described first total reflection lens and the second total reflection lens respectively.
Further, arrangement for adjusting height is provided with in described groove.The distance of deviation between the inclined-plane that may be used for adjustment first total reflection lens and the second total reflection lens, regulates the distance of light path.
Further, described first total reflection lens and the second total reflection lens include the raw material of following components by weight percent: 70 parts of SiO
2, 11 parts of B
2o
3, 3 parts of BaO, 10 parts of Na
2o, 6.3 parts of K
2o, 0.4 part of As
2o
3, 0.9 part of CaF
2with 0.5 part of Ge.Lens material of the present invention is the preferably component that applicant draws through long-term test results, the lens material prepared by it has excellent transmitance, be well suited for in gas detection cell of the present invention, can light absorbing for lens error be down to minimum, and there is excellent resisting laser damage characteristic.
Beneficial effect: gas detection cell of the present invention can, when ensureing longer measurement light path, effectively reduce the volume of gas detection cell, and cost of manufacture be lower.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first total reflection lens and the second total reflection lens in gas detection cell of the present invention;
Fig. 2 is the structural representation of gas detection cell of the present invention.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Refer to shown in Fig. 1 and Fig. 2, gas detection cell of the present invention, comprise the first total reflection lens 1 and the second total reflection lens 2, the xsect of the first total reflection lens 1 and the second total reflection lens 2 is right-angle triangle, and the inclined-plane of the first total reflection lens 1 and the inclined-plane of the second total reflection lens 2 are oppositely arranged.Preferably, the inclined-plane of the first total reflection lens 1 and the inclined-plane of the second total reflection lens 2 be arranged in parallel.The xsect of the first total reflection lens 1 and the second total reflection lens 2 is right angled isosceles triangle.First total reflection lens 1 is identical with the xsect size of the second total reflection lens 2.The right-angle side of the first total reflection lens 1 and the second total reflection lens 2 lays respectively at the cornerwise two ends of rectangle.Equal plated film on the inclined-plane of the first total reflection lens 1 and the inclined-plane of the second total reflection lens 2, can arrange different film plating layers for different laser, reduce the reflection of lens.
Also comprise shell 7, the two ends, inner side of shell 7 are provided with groove, first total reflection lens 1 and the second total reflection lens 2 are all arranged in a groove, the two ends of shell 7 are respectively arranged with the inclined-plane that the first collimating mirror 3 and the second collimating apparatus 4, first collimating mirror 3 and the second collimating apparatus 4 aim at the first total reflection lens 1 and the second total reflection lens 2 respectively.
Arrangement for adjusting height 6 is provided with, 7 in groove.The distance of deviation between the inclined-plane that may be used for adjustment first total reflection lens and the second total reflection lens, regulates the distance of light path.
First total reflection lens 1 and the second total reflection lens 2 include the raw material of following components by weight percent: 70 parts of SiO
2, 11 parts of B
2o
3, 3 parts of BaO, 10 parts of Na
2o, 6.3 parts of K
2o, 0.4 part of As
2o
3, 0.9 part of CaF
2with 0.5 part of Ge.Lens material of the present invention is the preferably component that applicant draws through long-term test results, and the lens material prepared by it has excellent transmitance, is well suited for in gas detection cell of the present invention, can be down to minimum by light absorbing for lens error.
embodiment 1:
First total reflection lens 1 of the present invention and the second total reflection lens 2 include the raw material of following components by weight percent: 70 kilograms of SiO
2, 11 kilograms of B
2o
3, 3 kilograms of BaO, 10 kilograms of Na
2o, 6.3 kilograms of K
2o, 0.4 kilogram of As
2o
3, 0.9 kilogram of CaF
2with 0.5 kilogram of Ge.
Experiment test: the transmitance of lens material of the present invention is higher than the transmitance more than 10% of commercially available K9 glass, and the present invention is not high for the error requirements of each component, lens material of the present invention has excellent resisting laser damage characteristic simultaneously.
Lens material of the present invention is the preferably component that applicant draws through long-term test results, and the lens material prepared by it has excellent transmitance, is well suited for in gas detection cell of the present invention, can be down to minimum by light absorbing for lens error.
Gas detection cell of the present invention can, when ensureing longer measurement light path, effectively reduce the volume of gas detection cell, and cost of manufacture be lower.
Claims (9)
1. a gas detection cell, it is characterized in that: comprise the first total reflection lens (1) and the second total reflection lens (2), the xsect of described first total reflection lens (1) and the second total reflection lens (2) is right-angle triangle, and the inclined-plane of described first total reflection lens (1) and the inclined-plane of described second total reflection lens (2) are oppositely arranged.
2. gas detection cell as claimed in claim 1, is characterized in that: the inclined-plane of described first total reflection lens (1) and the inclined-plane of described second total reflection lens (2) be arranged in parallel.
3. gas detection cell as claimed in claim 1, is characterized in that: the xsect of described first total reflection lens (1) and the second total reflection lens (2) is right angled isosceles triangle.
4. gas detection cell as claimed in claim 1, is characterized in that: described first total reflection lens (1) is identical with the xsect size of the second total reflection lens (2).
5. gas detection cell as claimed in claim 1, is characterized in that: the right-angle side of described first total reflection lens (1) and the second total reflection lens (2) lays respectively at the cornerwise two ends of rectangle.
6. gas detection cell as claimed in claim 1, is characterized in that: the inclined-plane of described first total reflection lens (1) and equal plated film on the inclined-plane of described second total reflection lens (2).
7. gas detection cell as claimed in claim 1, it is characterized in that: also comprise shell (7), the two ends, inner side of described shell (7) are provided with groove, described first total reflection lens (1) and the second total reflection lens (2) are all arranged in described groove, the two ends of described shell (7) are respectively arranged with the first collimating mirror (3) and the second collimating apparatus (4), and described first collimating mirror (3) and the second collimating apparatus (4) aim at the inclined-plane of described first total reflection lens (1) and the second total reflection lens (2) respectively.
8. gas detection cell as claimed in claim 7, is characterized in that: be provided with arrangement for adjusting height (6,7) in described groove.
9. gas detection cell as claimed in claim 1, is characterized in that: described first total reflection lens (1) and the second total reflection lens (2) include the raw material of following components by weight percent: 70 parts of SiO
2, 11 parts of B
2o
3, 3 parts of BaO, 10 parts of Na
2o, 6.3 parts of K
2o, 0.4 part of As
2o
3, 0.9 part of CaF
2with 0.5 part of Ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015836.XA CN105548016A (en) | 2015-12-31 | 2015-12-31 | Gas detecting chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015836.XA CN105548016A (en) | 2015-12-31 | 2015-12-31 | Gas detecting chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105548016A true CN105548016A (en) | 2016-05-04 |
Family
ID=55827357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511015836.XA Pending CN105548016A (en) | 2015-12-31 | 2015-12-31 | Gas detecting chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105548016A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148925A1 (en) * | 2018-02-01 | 2019-08-08 | 深圳海纳光科技有限公司 | Four right-angle reflectors-based optical path length increasing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203894137U (en) * | 2014-05-30 | 2014-10-22 | 江苏师范大学 | Detection system for aerosol employing extinction method |
| CN204314209U (en) * | 2014-12-17 | 2015-05-06 | 邓文平 | sample measuring cell |
| CN105043983A (en) * | 2015-05-27 | 2015-11-11 | 中国科学院合肥物质科学研究院 | Optical path multiplying opening type novel absorption pool based on combined prism |
-
2015
- 2015-12-31 CN CN201511015836.XA patent/CN105548016A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203894137U (en) * | 2014-05-30 | 2014-10-22 | 江苏师范大学 | Detection system for aerosol employing extinction method |
| CN204314209U (en) * | 2014-12-17 | 2015-05-06 | 邓文平 | sample measuring cell |
| CN105043983A (en) * | 2015-05-27 | 2015-11-11 | 中国科学院合肥物质科学研究院 | Optical path multiplying opening type novel absorption pool based on combined prism |
Non-Patent Citations (5)
| Title |
|---|
| 吴刚 等: "基于双直角棱镜的光纤光度传感器", 《仪表技术与传感器》 * |
| 吴希军 等: "棱镜气室在光纤甲烷检测***中的应用研究", 《光学学报》 * |
| 姚伟超 等: "消光棱镜气室气体检测特性分析", 《光电应用技术》 * |
| 肖韶荣 等: "基于直角棱镜的光纤光度传感器", 《中国激光》 * |
| 肖韶荣 等: "大气监测中光纤气体传感器灵敏度的自动设定", 《红外与激光工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148925A1 (en) * | 2018-02-01 | 2019-08-08 | 深圳海纳光科技有限公司 | Four right-angle reflectors-based optical path length increasing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Si Junfeng Inventor after: Jin Yuhang Inventor before: Si Junfeng Inventor before: Jin Yong |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |