FI903858A0 - Anordning och foerfarande foer maetning av halten av en gas. - Google Patents
Anordning och foerfarande foer maetning av halten av en gas.Info
- Publication number
- FI903858A0 FI903858A0 FI903858A FI903858A FI903858A0 FI 903858 A0 FI903858 A0 FI 903858A0 FI 903858 A FI903858 A FI 903858A FI 903858 A FI903858 A FI 903858A FI 903858 A0 FI903858 A0 FI 903858A0
- Authority
- FI
- Finland
- Prior art keywords
- faring
- halten
- maintenance
- procedure
- gas
- Prior art date
Links
- 238000012423 maintenance Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
- G01J3/108—Arrangements of light sources specially adapted for spectrometry or colorimetry for measurement in the infrared range
-
- 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
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06166—Line selective sources
- G01N2201/06173—IR sources from heated molecular species
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI903858A FI85426C (fi) | 1990-08-03 | 1990-08-03 | Anordning och foerfarande foer maetning av halten av en gas. |
EP19910306271 EP0469733A3 (en) | 1990-08-03 | 1991-07-11 | Apparatus and method for measuring gas concentrations |
US07/731,971 US5160843A (en) | 1990-08-03 | 1991-07-18 | Apparatus and method for measuring gas concentrations |
JP3216644A JPH04250337A (ja) | 1990-08-03 | 1991-08-02 | 気体集束作用を測定するための装置および方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI903858 | 1990-08-03 | ||
FI903858A FI85426C (fi) | 1990-08-03 | 1990-08-03 | Anordning och foerfarande foer maetning av halten av en gas. |
Publications (4)
Publication Number | Publication Date |
---|---|
FI903858A0 true FI903858A0 (fi) | 1990-08-03 |
FI85426B FI85426B (fi) | 1991-12-31 |
FI903858A FI903858A (fi) | 1991-12-31 |
FI85426C FI85426C (fi) | 1992-04-10 |
Family
ID=8530879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI903858A FI85426C (fi) | 1990-08-03 | 1990-08-03 | Anordning och foerfarande foer maetning av halten av en gas. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5160843A (fi) |
EP (1) | EP0469733A3 (fi) |
JP (1) | JPH04250337A (fi) |
FI (1) | FI85426C (fi) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2264169B (en) * | 1992-02-07 | 1995-08-02 | Alan John Hayes | Fluid monitoring |
US5510269A (en) * | 1992-11-20 | 1996-04-23 | Sensors, Inc. | Infrared method and apparatus for measuring gas concentration including electronic calibration |
FR2713770B1 (fr) * | 1993-12-10 | 1996-02-09 | Sextant Avionique | Procédé et appareil de mesure optique de la pression d'un mélange gazeux. |
WO1997024760A1 (fr) * | 1995-12-28 | 1997-07-10 | Nippon Sanso Corporation | Procede et dispositif de transfert de substrats en plaques minces |
US6124145A (en) * | 1998-01-23 | 2000-09-26 | Instrumentarium Corporation | Micromachined gas-filled chambers and method of microfabrication |
US6586885B2 (en) | 2001-08-20 | 2003-07-01 | Motorola, Inc. | MHCD and microfluidic apparatus and method |
DE10342800A1 (de) * | 2003-09-16 | 2005-04-28 | Fraunhofer Ges Forschung | Vorrichtung zur Absorption und/oder Emission von Strahlung, Verfahren zur Herstellung einer solchen Vorrichtung und Verfahren zur Analyse von Fluiden |
DE102007029536A1 (de) * | 2007-06-25 | 2009-01-02 | GEA Process Engineering (NPS) Ltd., Eastleigh | Vorrichtung zur optischen Messung von Stoffkonzentrationen |
US8785874B2 (en) | 2010-12-30 | 2014-07-22 | Walter Kidde Portable Equipment, Inc. | Ionization window |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3249754A (en) * | 1962-03-26 | 1966-05-03 | Beckman Instruments Inc | Double beam fluorometer using an alternately activated double beam lamp |
US3600091A (en) * | 1970-05-13 | 1971-08-17 | Atomic Energy Commission | Bright-line emission source for absorption spectroscopy |
US3725701A (en) * | 1971-10-26 | 1973-04-03 | Andros Inc | Fluorescent source non-dispersive infrared gas analyzer |
IN142576B (fi) * | 1974-03-04 | 1977-07-30 | Bbc Brown Boveri & Cie | |
US4274063A (en) * | 1976-12-30 | 1981-06-16 | Ali Javan | Infrared spectroscopic lamps and gas detectors incorporating such lamps |
IL77494A (en) * | 1986-01-01 | 1989-12-15 | Irad Technologies Ltd | Gas analyzer |
US4780613A (en) * | 1986-09-22 | 1988-10-25 | Spectral Sciences, Inc. | Infrared species specific emission source |
US4721885A (en) * | 1987-02-11 | 1988-01-26 | Sri International | Very high speed integrated microelectronic tubes |
US4967089A (en) * | 1987-11-19 | 1990-10-30 | Honeywell Inc. | Pulsed optical source |
-
1990
- 1990-08-03 FI FI903858A patent/FI85426C/fi not_active IP Right Cessation
-
1991
- 1991-07-11 EP EP19910306271 patent/EP0469733A3/en not_active Withdrawn
- 1991-07-18 US US07/731,971 patent/US5160843A/en not_active Expired - Fee Related
- 1991-08-02 JP JP3216644A patent/JPH04250337A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0469733A3 (en) | 1992-05-27 |
FI85426C (fi) | 1992-04-10 |
FI85426B (fi) | 1991-12-31 |
FI903858A (fi) | 1991-12-31 |
US5160843A (en) | 1992-11-03 |
JPH04250337A (ja) | 1992-09-07 |
EP0469733A2 (en) | 1992-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: VAISALA OY |