GB2428789B - Replacing a semiconductor gas detection system with an optically-operable sensor in a gas monitoring system - Google Patents
Replacing a semiconductor gas detection system with an optically-operable sensor in a gas monitoring systemInfo
- Publication number
- GB2428789B GB2428789B GB0614009A GB0614009A GB2428789B GB 2428789 B GB2428789 B GB 2428789B GB 0614009 A GB0614009 A GB 0614009A GB 0614009 A GB0614009 A GB 0614009A GB 2428789 B GB2428789 B GB 2428789B
- Authority
- GB
- United Kingdom
- Prior art keywords
- optically
- replacing
- monitoring system
- detection system
- operable sensor
- 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
- 238000001514 detection method Methods 0.000 title 1
- 238000012544 monitoring process Methods 0.000 title 1
- 239000004065 semiconductor Substances 0.000 title 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
- G01N21/17—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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0515103A GB0515103D0 (en) | 2005-07-25 | 2005-07-25 | Semiconductor replacement gas sensor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0614009D0 GB0614009D0 (en) | 2006-08-23 |
| GB2428789A GB2428789A (en) | 2007-02-07 |
| GB2428789B true GB2428789B (en) | 2009-05-27 |
Family
ID=34976411
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0515103A Ceased GB0515103D0 (en) | 2005-07-25 | 2005-07-25 | Semiconductor replacement gas sensor |
| GB0614009A Expired - Fee Related GB2428789B (en) | 2005-07-25 | 2006-07-14 | Replacing a semiconductor gas detection system with an optically-operable sensor in a gas monitoring system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0515103A Ceased GB0515103D0 (en) | 2005-07-25 | 2005-07-25 | Semiconductor replacement gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB0515103D0 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396056B1 (en) * | 1999-07-08 | 2002-05-28 | Air Instruments And Measurements, Inc. | Gas detectors and gas analyzers utilizing spectral absorption |
-
2005
- 2005-07-25 GB GB0515103A patent/GB0515103D0/en not_active Ceased
-
2006
- 2006-07-14 GB GB0614009A patent/GB2428789B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396056B1 (en) * | 1999-07-08 | 2002-05-28 | Air Instruments And Measurements, Inc. | Gas detectors and gas analyzers utilizing spectral absorption |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2428789A (en) | 2007-02-07 |
| GB0515103D0 (en) | 2005-08-31 |
| GB0614009D0 (en) | 2006-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20100714 |