GB1521421A - Infrared analyzer of constant radiant energy - Google Patents
Infrared analyzer of constant radiant energyInfo
- Publication number
- GB1521421A GB1521421A GB2358/76A GB235876A GB1521421A GB 1521421 A GB1521421 A GB 1521421A GB 2358/76 A GB2358/76 A GB 2358/76A GB 235876 A GB235876 A GB 235876A GB 1521421 A GB1521421 A GB 1521421A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thermistors
- infrared analyzer
- radiant energy
- comparator
- stabilize
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19938/75A IT1031452B (it) | 1975-02-04 | 1975-02-04 | Analizzatore a raggi infrarossi con energia radiante cost ante |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1521421A true GB1521421A (en) | 1978-08-16 |
Family
ID=11162489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2358/76A Expired GB1521421A (en) | 1975-02-04 | 1976-01-21 | Infrared analyzer of constant radiant energy |
Country Status (6)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4467204A (en) * | 1982-02-25 | 1984-08-21 | American Crystal Sugar Company | Apparatus and method for measuring optically active materials |
| US4480191A (en) * | 1982-09-27 | 1984-10-30 | Sun Electric Corporation | Automatic gain control for an infrared source of an automotive emissions analyzer |
| HU200507B (en) * | 1987-04-10 | 1990-06-28 | Gabor Szabo | Circuit arrangement for controlling differential measurements based on light intensity |
| US20230068316A1 (en) * | 2020-02-06 | 2023-03-02 | Trinamix Gmbh | Temperature Detection Through Differential Dual Detectors |
| CN112473019A (zh) * | 2020-12-16 | 2021-03-12 | 迈尔健康科技(深圳)有限公司 | 一种保持红外热疗辐射平衡的方法及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2775160A (en) * | 1952-11-26 | 1956-12-25 | Laurence W Foskett | Apparatus for absorption spectra analysis |
| US2789230A (en) * | 1954-03-19 | 1957-04-16 | Phillips Petroleum Co | Temperature compensator |
| US3409885A (en) * | 1964-03-26 | 1968-11-05 | Guardian Industries | Smoke detection apparatus |
| US3517189A (en) * | 1967-04-10 | 1970-06-23 | Mine Safety Appliances Co | Infrared gas analyzer wherein the detector comprises two optically spaced thermisters separated by an absorbing gas |
| NL6713063A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1967-09-25 | 1969-03-27 | ||
| US3539804A (en) * | 1968-12-23 | 1970-11-10 | Us Army | Fluid analysis by infrared absorption |
| US3614450A (en) * | 1969-02-17 | 1971-10-19 | Measurex Corp | Apparatus for measuring the amount of a substance that is associated with a base material |
| DE1911956A1 (de) * | 1969-03-10 | 1970-09-24 | Leitz Ernst Gmbh | Fotoelektrische Einrichtung zum beruehrungslosen Bestimmen kleiner Lage- oder Winkelaenderungen von Objekten |
| US3662171A (en) * | 1970-09-21 | 1972-05-09 | Textron Inc | Methane gas detection system using infrared |
| US3911277A (en) * | 1974-07-25 | 1975-10-07 | Beckman Instruments Inc | Dual lighthouse detector |
-
1975
- 1975-02-04 IT IT19938/75A patent/IT1031452B/it active
-
1976
- 1976-01-20 US US05/650,748 patent/US4016423A/en not_active Expired - Lifetime
- 1976-01-20 DE DE19762601917 patent/DE2601917A1/de not_active Withdrawn
- 1976-01-21 GB GB2358/76A patent/GB1521421A/en not_active Expired
- 1976-02-02 JP JP51009408A patent/JPS51103486A/ja active Pending
- 1976-02-03 FR FR7603545A patent/FR2300339A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51103486A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-09-13 |
| FR2300339B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-02-15 |
| US4016423A (en) | 1977-04-05 |
| FR2300339A1 (fr) | 1976-09-03 |
| DE2601917A1 (de) | 1976-08-05 |
| IT1031452B (it) | 1979-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |