DE69637891D1 - Gassensor - Google Patents

Gassensor

Info

Publication number
DE69637891D1
DE69637891D1 DE69637891T DE69637891T DE69637891D1 DE 69637891 D1 DE69637891 D1 DE 69637891D1 DE 69637891 T DE69637891 T DE 69637891T DE 69637891 T DE69637891 T DE 69637891T DE 69637891 D1 DE69637891 D1 DE 69637891D1
Authority
DE
Germany
Prior art keywords
light
cavity
pct
plane
rays
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 - Lifetime
Application number
DE69637891T
Other languages
English (en)
Inventor
Hans Goeran Evald Martin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE69637891D1 publication Critical patent/DE69637891D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/031—Multipass arrangements
    • 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
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • 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
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/05—Flow-through cuvettes
    • G01N2021/058—Flat flow cell

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)
  • Glass Compositions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
DE69637891T 1995-11-13 1996-11-11 Gassensor Expired - Lifetime DE69637891D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9504020A SE510549C2 (sv) 1995-11-13 1995-11-13 Gassensor
PCT/SE1996/001448 WO1997018460A1 (en) 1995-11-13 1996-11-11 Gas sensor

Publications (1)

Publication Number Publication Date
DE69637891D1 true DE69637891D1 (de) 2009-05-14

Family

ID=20400189

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69637891T Expired - Lifetime DE69637891D1 (de) 1995-11-13 1996-11-11 Gassensor

Country Status (9)

Country Link
US (1) US6016203A (de)
EP (1) EP0873505B1 (de)
JP (2) JP2000500237A (de)
AT (1) ATE427479T1 (de)
AU (1) AU7659296A (de)
CA (1) CA2236039C (de)
DE (1) DE69637891D1 (de)
SE (1) SE510549C2 (de)
WO (1) WO1997018460A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506942C2 (sv) * 1996-08-28 1998-03-02 Hans Goeran Evald Martin Gassensor
SE522941C2 (sv) * 2000-04-26 2004-03-16 Senseair Ab Gascell
GB2372099B (en) * 2001-02-08 2003-11-05 Status Scient Controls Ltd Gas sensor
GB2389177B (en) * 2002-05-31 2006-03-15 Marconi Applied Techn Ltd Gas sensors
GB2395259A (en) * 2002-11-07 2004-05-19 E2V Tech Uk Ltd Gas sensor with predetermined optical paths between its different detectors
SE524663C2 (sv) * 2003-01-15 2004-09-14 Senseair Ab Gascell, ingående i gassensor för spektralanalys
US7244939B2 (en) * 2003-12-09 2007-07-17 Dynament Limited Gas sensor
DE102004027512A1 (de) * 2004-06-04 2005-12-22 Robert Bosch Gmbh Spektroskopischer Gassensor, insbesondere zum Nachweis mindestens einer Gaskomponente in der Umluft, und Verfahren zur Herstellung eines derartigen spektroskopischen Gassensors
US20090284745A1 (en) * 2004-10-18 2009-11-19 Seung-Hwan Yi Gas cell using two parabolic concave mirrors and method of producing gas sensor using the same
US7782462B2 (en) * 2006-11-27 2010-08-24 Applied Nanotech Holdings, Inc. Sono-photonic gas sensor
SE0802069A1 (sv) 2008-09-30 2010-03-31 Senseair Ab Ett för en spektralanalys av höga gaskoncentrationer anpassat arrangemang
SE535267C2 (sv) * 2009-10-26 2012-06-12 Senseair Ab En till en spektralanalys anpassad mätcell
GB201000756D0 (en) 2010-01-18 2010-03-03 Gas Sensing Solutions Ltd Gas sensor with radiation guide
GB201018417D0 (en) 2010-11-01 2010-12-15 Gas Sensing Solutions Ltd Apparatus and method for generating light pulses from LEDs in optical absorption gas sensors
US9322705B2 (en) 2012-08-28 2016-04-26 Seagate Technology Llc Sensing a selected ambient environment
ITMI20130478A1 (it) * 2013-03-29 2014-09-30 N E T Srl Rilevatore ottico di gas a geometria variabile
US9759652B2 (en) 2015-02-28 2017-09-12 Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Quantum dot light emitting diodes for multiplex gas sensing
US10161859B2 (en) 2016-10-27 2018-12-25 Honeywell International Inc. Planar reflective ring
KR102450625B1 (ko) * 2017-08-31 2022-10-07 서울바이오시스 주식회사 검출기
CN113406001B (zh) * 2021-06-30 2022-07-01 广东感芯激光科技有限公司 一种光电气体传感器探头及光电气体检测装置
SE2251481A1 (en) * 2022-12-16 2024-06-17 Senseair Ab Multipass spectroscopic absorption cell and gas sensor comprising such
GB2628672A (en) * 2023-03-31 2024-10-02 Servomex Group Ltd Method, apparatus and system for compact optical gas absorption measurements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236926A (en) * 1967-09-29 1971-06-23 Perkin Elmer Ltd Gas analysis cells
US4756622A (en) * 1986-05-15 1988-07-12 Hibshman Corporation Compact apparatus for measuring absorption by a gas
US5060508A (en) * 1990-04-02 1991-10-29 Gaztech Corporation Gas sample chamber
US5340986A (en) * 1991-11-18 1994-08-23 Gaztech International Corporation Diffusion-type gas sample chamber
GB9320756D0 (en) * 1993-10-08 1993-12-01 Geotechnical Instr Uk Ltd Gas analyser
US5440143A (en) * 1994-02-25 1995-08-08 On-Line Technologies, Inc. Folded-path optical analysis gas cell
DE4434814A1 (de) * 1994-09-29 1996-04-04 Microparts Gmbh Infrarotspektrometrischer Sensor für Gase

Also Published As

Publication number Publication date
JP2000500237A (ja) 2000-01-11
EP0873505B1 (de) 2009-04-01
CA2236039A1 (en) 1997-05-22
CA2236039C (en) 2003-04-01
ATE427479T1 (de) 2009-04-15
SE510549C2 (sv) 1999-05-31
SE9504020D0 (sv) 1995-11-13
US6016203A (en) 2000-01-18
EP0873505A1 (de) 1998-10-28
SE9504020L (sv) 1997-05-14
JP2007256281A (ja) 2007-10-04
AU7659296A (en) 1997-06-05
WO1997018460A1 (en) 1997-05-22

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Legal Events

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