AU3251395A - Process and device for determining gas concentrations in a gas mixture - Google Patents

Process and device for determining gas concentrations in a gas mixture

Info

Publication number
AU3251395A
AU3251395A AU32513/95A AU3251395A AU3251395A AU 3251395 A AU3251395 A AU 3251395A AU 32513/95 A AU32513/95 A AU 32513/95A AU 3251395 A AU3251395 A AU 3251395A AU 3251395 A AU3251395 A AU 3251395A
Authority
AU
Australia
Prior art keywords
gas
determining
concentrations
gas mixture
mixture
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.)
Abandoned
Application number
AU32513/95A
Inventor
Andreas Ruetschi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCR CREVOISERAT SA
Original Assignee
Scr Crevoiserat S A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scr Crevoiserat S A filed Critical Scr Crevoiserat S A
Publication of AU3251395A publication Critical patent/AU3251395A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • 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
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G01N2021/1704—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/014—Resonance or resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/021—Gases
    • G01N2291/0212—Binary gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/105—Number of transducers two or more emitters, two or more receivers

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)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AU32513/95A 1994-09-07 1995-09-07 Process and device for determining gas concentrations in a gas mixture Abandoned AU3251395A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH273294A CH685889A5 (en) 1994-09-07 1994-09-07 Method and apparatus for determining gas concentrations in a gas mixture
CH2732/94 1994-09-07
PCT/CH1995/000197 WO1996007899A1 (en) 1994-09-07 1995-09-07 Process and device for determining gas concentrations in a gas mixture

Publications (1)

Publication Number Publication Date
AU3251395A true AU3251395A (en) 1996-03-27

Family

ID=4240365

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32513/95A Abandoned AU3251395A (en) 1994-09-07 1995-09-07 Process and device for determining gas concentrations in a gas mixture

Country Status (3)

Country Link
AU (1) AU3251395A (en)
CH (1) CH685889A5 (en)
WO (1) WO1996007899A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT6119U3 (en) * 2003-01-29 2003-12-29 Avl List Gmbh METHOD FOR PHOTOACOUSTIC MEASUREMENT OF FOREIGN MATERIALS IN GASES
CN102596030B (en) 2009-11-03 2015-12-09 皇家飞利浦电子股份有限公司 For measuring the equipment of the level of specific gas in expired gas
EP3561487B1 (en) 2018-04-25 2023-01-18 ABB Schweiz AG Measuring device for analysis of a composition of a combustible gas with a filter chamber arranged in front of a detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2945172C2 (en) * 1979-11-08 1983-09-01 Gerhard 8200 Rosenheim Krause Method for determining the concentration of a gas, in particular the carbon dioxide content in a gas mixture
JPS5764145A (en) * 1980-10-07 1982-04-19 Toyo Soda Mfg Co Ltd Flow type optoacoustic detector
CH679076A5 (en) * 1989-06-13 1991-12-13 Oscar Dr Sc Nat Oehler
US5129255A (en) * 1989-10-06 1992-07-14 The Aerospace Corporation Photoacoustic detection and tracking apparatus
DK163537C (en) * 1990-03-05 1992-08-03 Fls Airloq As METHOD AND APPARATUS FOR TRANSMISSING AN ACOUSTIC SIGNAL IN A PHOTOACUSTIC CELL

Also Published As

Publication number Publication date
CH685889A5 (en) 1995-10-31
WO1996007899A1 (en) 1996-03-14

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