ATE199458T1 - Verbesserte gasentnahmekammer vom diffusionstyp - Google Patents

Verbesserte gasentnahmekammer vom diffusionstyp

Info

Publication number
ATE199458T1
ATE199458T1 AT93917242T AT93917242T ATE199458T1 AT E199458 T1 ATE199458 T1 AT E199458T1 AT 93917242 T AT93917242 T AT 93917242T AT 93917242 T AT93917242 T AT 93917242T AT E199458 T1 ATE199458 T1 AT E199458T1
Authority
AT
Austria
Prior art keywords
chamber
radiation
closed
hollow tube
type gas
Prior art date
Application number
AT93917242T
Other languages
English (en)
Inventor
Jacob Y Wong
Original Assignee
Gaztech Internat Corp
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 Gaztech Internat Corp filed Critical Gaztech Internat Corp
Application granted granted Critical
Publication of ATE199458T1 publication Critical patent/ATE199458T1/de

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
    • G01N21/17—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
    • G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
    • 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
    • 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
    • G01N21/0332—Cuvette constructions with temperature control
    • 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
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements
    • 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
    • G01N2021/0314—Double pass, autocollimated path
    • 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
    • G01N2021/0385—Diffusing membrane; Semipermeable membrane
    • 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
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/158—Eliminating condensation
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N2021/8578—Gaseous flow
    • G01N2021/8585—Gaseous flow using porous sheets, e.g. for separating aerosols
    • 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
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers
    • 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
    • G01N2201/02—Mechanical
    • G01N2201/022—Casings
    • G01N2201/0228—Moulded parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Optical Measuring Cells (AREA)
AT93917242T 1992-07-16 1993-07-16 Verbesserte gasentnahmekammer vom diffusionstyp ATE199458T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/915,003 US5340986A (en) 1991-11-18 1992-07-16 Diffusion-type gas sample chamber
PCT/US1993/006722 WO1994018546A1 (en) 1992-07-16 1993-07-16 Improved diffusion-type gas sample chamber

Publications (1)

Publication Number Publication Date
ATE199458T1 true ATE199458T1 (de) 2001-03-15

Family

ID=25435070

Family Applications (2)

Application Number Title Priority Date Filing Date
AT99125409T ATE310240T1 (de) 1992-07-16 1993-07-16 Verbesserte gasprobenkammer vom diffusionstyp
AT93917242T ATE199458T1 (de) 1992-07-16 1993-07-16 Verbesserte gasentnahmekammer vom diffusionstyp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT99125409T ATE310240T1 (de) 1992-07-16 1993-07-16 Verbesserte gasprobenkammer vom diffusionstyp

Country Status (9)

Country Link
US (2) US5340986A (de)
EP (2) EP0634009B1 (de)
JP (1) JPH0666724A (de)
AT (2) ATE310240T1 (de)
AU (1) AU657638B2 (de)
CA (1) CA2119127C (de)
DE (2) DE69329968T2 (de)
DK (1) DK0634009T3 (de)
WO (1) WO1994018546A1 (de)

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Also Published As

Publication number Publication date
EP0997727B1 (de) 2005-11-16
US5502308A (en) 1996-03-26
AU4681993A (en) 1994-08-29
DE69333910D1 (de) 2005-12-22
US5340986A (en) 1994-08-23
DE69329968D1 (de) 2001-04-05
CA2119127C (en) 1997-01-21
DE69333910T2 (de) 2006-08-10
DE69329968T2 (de) 2001-09-20
EP0634009B1 (de) 2001-02-28
EP0634009A1 (de) 1995-01-18
WO1994018546A1 (en) 1994-08-18
EP0634009A4 (de) 1996-01-03
ATE310240T1 (de) 2005-12-15
CA2119127A1 (en) 1994-01-17
DK0634009T3 (da) 2001-06-25
AU657638B2 (en) 1995-03-16
JPH0666724A (ja) 1994-03-11
EP0997727A1 (de) 2000-05-03

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