ZA887103B - Gas detection method and apparatus - Google Patents
Gas detection method and apparatusInfo
- Publication number
- ZA887103B ZA887103B ZA887103A ZA887103A ZA887103B ZA 887103 B ZA887103 B ZA 887103B ZA 887103 A ZA887103 A ZA 887103A ZA 887103 A ZA887103 A ZA 887103A ZA 887103 B ZA887103 B ZA 887103B
- Authority
- ZA
- South Africa
- Prior art keywords
- detection method
- gas detection
- gas
- detection
- Prior art date
Links
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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
-
- 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
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
- G01N2201/084—Fibres for remote transmission
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878722283A GB8722283D0 (en) | 1987-09-22 | 1987-09-22 | Gas detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA887103B true ZA887103B (en) | 1989-07-26 |
Family
ID=10624192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA887103A ZA887103B (en) | 1987-09-22 | 1988-09-22 | Gas detection method and apparatus |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1033105A (en) |
| AU (1) | AU2429488A (en) |
| GB (1) | GB8722283D0 (en) |
| WO (1) | WO1989003028A1 (en) |
| ZA (1) | ZA887103B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2215039B (en) * | 1988-02-10 | 1992-02-05 | Plessey Co Plc | Improvements relating to optical sensing arrangements |
| US4972077A (en) * | 1988-08-08 | 1990-11-20 | Schlumberger Industries Limited | Wavelength multiplexed optical transducer with a swept wavelength optical source |
| DE3830906A1 (en) * | 1988-09-10 | 1990-03-15 | Draegerwerk Ag | MIRROR ARRANGEMENT FOR A RADIATION IN A MULTIPLE REFLECTION MEASURING CELL |
| US5026992A (en) * | 1989-09-06 | 1991-06-25 | Gaztech Corporation | Spectral ratioing technique for NDIR gas analysis using a differential temperature source |
| DE4000584A1 (en) * | 1990-01-10 | 1991-07-11 | Muetek Gmbh | METHOD AND DEVICE FOR DETERMINING CONCENTRATION OF ISOTOPES |
| US5202570A (en) * | 1990-03-27 | 1993-04-13 | Tokyo Gas Co., Ltd. | Gas detection device |
| GB9015800D0 (en) * | 1990-07-18 | 1990-09-05 | Secretary Trade Ind Brit | Optical long-path monitoring apparatus |
| US5510269A (en) * | 1992-11-20 | 1996-04-23 | Sensors, Inc. | Infrared method and apparatus for measuring gas concentration including electronic calibration |
| US5637872A (en) * | 1995-08-24 | 1997-06-10 | Tulip; John | Gas detector |
| US6121627A (en) * | 1998-08-31 | 2000-09-19 | Tulip; John | Gas detector with reference cell |
| EP1103804B1 (en) * | 1999-11-24 | 2005-08-31 | Siemens Aktiengesellschaft | Method for detection of natural gas |
| JP4024494B2 (en) * | 2001-03-29 | 2007-12-19 | 大陽日酸株式会社 | Method and apparatus for measuring nitrogen in gas |
| US6750467B2 (en) | 2002-05-14 | 2004-06-15 | John Tulip | Vehicle mounted gas detector |
| CN100491973C (en) * | 2006-10-11 | 2009-05-27 | 中国科学院上海微系统与信息技术研究所 | One-chip double core or multiple core semiconductor laser gas sensor and its making and using method |
| CN103776799A (en) * | 2012-10-28 | 2014-05-07 | 天津奇谱光电技术有限公司 | Hydrogen sulfide gas sensing equipment |
| CN103776792A (en) * | 2012-10-28 | 2014-05-07 | 天津奇谱光电技术有限公司 | Gas sensing equipment employing tunable Fabry-Perot filter |
| WO2015038217A1 (en) * | 2013-09-12 | 2015-03-19 | Virginia Tech Intellectual Properties, Inc. | Fiber optic gas monitoring system |
| EP3077797A4 (en) * | 2013-12-05 | 2017-09-27 | Gary P. Klinkhammer | Spectrophotometer with variable optical path length cell |
| CN104596986A (en) * | 2014-01-14 | 2015-05-06 | 王胤 | Spectrum analysis method and spectrum analysis system |
| CN105092527A (en) * | 2014-05-19 | 2015-11-25 | 中国石油化工集团公司 | Gas detector for logging and method thereof |
| CN104237161B (en) * | 2014-10-15 | 2016-09-07 | 中国科学院合肥物质科学研究院 | A kind of spontaneous combustionof coal index gas multicomponent real-time online remote monitoring device and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489239A (en) * | 1982-09-24 | 1984-12-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Portable remote laser sensor for methane leak detection |
| GB2165640B (en) * | 1984-10-13 | 1988-05-18 | Stc Plc | Gas or vapour concentration monitoring |
-
1987
- 1987-09-22 GB GB878722283A patent/GB8722283D0/en active Pending
-
1988
- 1988-09-22 WO PCT/GB1988/000776 patent/WO1989003028A1/en unknown
- 1988-09-22 CN CN88107746A patent/CN1033105A/en active Pending
- 1988-09-22 AU AU24294/88A patent/AU2429488A/en not_active Abandoned
- 1988-09-22 ZA ZA887103A patent/ZA887103B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2429488A (en) | 1989-04-18 |
| GB8722283D0 (en) | 1987-10-28 |
| CN1033105A (en) | 1989-05-24 |
| WO1989003028A1 (en) | 1989-04-06 |
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