EP2715291A4 - Re-calibration of ab ndir gas sensors - Google Patents

Re-calibration of ab ndir gas sensors

Info

Publication number
EP2715291A4
EP2715291A4 EP12794011.2A EP12794011A EP2715291A4 EP 2715291 A4 EP2715291 A4 EP 2715291A4 EP 12794011 A EP12794011 A EP 12794011A EP 2715291 A4 EP2715291 A4 EP 2715291A4
Authority
EP
European Patent Office
Prior art keywords
calibration
gas sensors
ndir gas
ndir
sensors
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.)
Withdrawn
Application number
EP12794011.2A
Other languages
German (de)
French (fr)
Other versions
EP2715291A2 (en
Inventor
Jacob Y Wong
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.)
Airware Inc
Original Assignee
Airware Inc
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
Priority claimed from US13/149,738 external-priority patent/US8178832B1/en
Priority claimed from US13/348,568 external-priority patent/US8222606B1/en
Priority claimed from US13/420,323 external-priority patent/US8217355B1/en
Application filed by Airware Inc filed Critical Airware Inc
Publication of EP2715291A2 publication Critical patent/EP2715291A2/en
Publication of EP2715291A4 publication Critical patent/EP2715291A4/en
Withdrawn legal-status Critical Current

Links

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
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • 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
    • 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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • G01N21/17—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
    • G01N2201/06—Illumination; Optics
    • G01N2201/066—Modifiable path; multiple paths in one sample
    • G01N2201/0662—Comparing measurements on two or more paths in one sample
    • 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
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/127—Calibration; base line adjustment; drift compensation
    • G01N2201/12746—Calibration values determination

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP12794011.2A 2011-05-31 2012-05-25 Re-calibration of ab ndir gas sensors Withdrawn EP2715291A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13/149,738 US8178832B1 (en) 2011-05-31 2011-05-31 Re-calibration methodology for NDIR gas sensors
US13/348,568 US8222606B1 (en) 2011-05-31 2012-01-11 Air sampler for recalibration of absorption biased designed NDIR gas sensors
US13/420,323 US8217355B1 (en) 2011-05-31 2012-03-14 Self-commissioning NDIR gas sensors
PCT/US2012/039539 WO2012166585A2 (en) 2011-05-31 2012-05-25 Re-calibration of ab ndir gas sensors

Publications (2)

Publication Number Publication Date
EP2715291A2 EP2715291A2 (en) 2014-04-09
EP2715291A4 true EP2715291A4 (en) 2015-10-21

Family

ID=47260211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12794011.2A Withdrawn EP2715291A4 (en) 2011-05-31 2012-05-25 Re-calibration of ab ndir gas sensors

Country Status (4)

Country Link
EP (1) EP2715291A4 (en)
AU (1) AU2012262488A1 (en)
CA (1) CA2837588A1 (en)
WO (1) WO2012166585A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015106632A1 (en) * 2015-04-29 2016-11-03 Smartgas Mikrosensorik Gmbh Sensor for detecting the concentration of at least one medium and method for operating such a sensor
IT201900006920A1 (en) * 2019-05-16 2020-11-16 Ft System Srl Method and apparatus for recognizing the presence of leaks from sealed containers
SE544494C2 (en) 2020-10-21 2022-06-21 Senseair Ab Temperature controller for a temperature control mechanism
SE544539C2 (en) * 2020-11-18 2022-07-05 Senseair Ab Method and device for determining a concentration of a component in a fluid
WO2023274881A1 (en) * 2021-07-01 2023-01-05 Boehringer Ingelheim Vetmedica Gmbh Method for calibrating an optical system
CN117470795B (en) * 2023-12-27 2024-03-29 成都千嘉科技股份有限公司 Non-spectroscopic infrared gas sensor and gas testing method thereof

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CH664222A5 (en) * 1984-11-30 1988-02-15 Sprecher Energie Ag METHOD AND APPARATUS FOR ON WAKE THE DENSITY OF A houses on gaseous MEDIUM IN A CLOSED AREA.
EP0733897A2 (en) * 1995-03-22 1996-09-25 Vaisala Oy Calibration method for NDIR equipment and calibration apparatus
US6360582B1 (en) * 2000-01-18 2002-03-26 Texas Instruments Incorporated Method for calibration of chemical sensor in measuring changes in chemical concentration
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WO2011022558A1 (en) * 2009-08-21 2011-02-24 Airware, Inc. Absorption biased ndir gas sensors

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Publication number Priority date Publication date Assignee Title
CH664222A5 (en) * 1984-11-30 1988-02-15 Sprecher Energie Ag METHOD AND APPARATUS FOR ON WAKE THE DENSITY OF A houses on gaseous MEDIUM IN A CLOSED AREA.
EP0733897A2 (en) * 1995-03-22 1996-09-25 Vaisala Oy Calibration method for NDIR equipment and calibration apparatus
US6360582B1 (en) * 2000-01-18 2002-03-26 Texas Instruments Incorporated Method for calibration of chemical sensor in measuring changes in chemical concentration
US7705313B1 (en) * 2005-10-18 2010-04-27 Ric Investments, Llc Ambient gas compensation in an optical system
WO2011022558A1 (en) * 2009-08-21 2011-02-24 Airware, Inc. Absorption biased ndir gas sensors
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Title
See also references of WO2012166585A2 *

Also Published As

Publication number Publication date
WO2012166585A2 (en) 2012-12-06
CA2837588A1 (en) 2012-12-06
EP2715291A2 (en) 2014-04-09
AU2012262488A1 (en) 2014-01-16
WO2012166585A3 (en) 2014-05-08

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