CH551622A - METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF GASES BY OPTICAL EXTINCTION MEASUREMENT. - Google Patents

METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF GASES BY OPTICAL EXTINCTION MEASUREMENT.

Info

Publication number
CH551622A
CH551622A CH891672A CH891672A CH551622A CH 551622 A CH551622 A CH 551622A CH 891672 A CH891672 A CH 891672A CH 891672 A CH891672 A CH 891672A CH 551622 A CH551622 A CH 551622A
Authority
CH
Switzerland
Prior art keywords
gases
concentration
determining
optical extinction
extinction measurement
Prior art date
Application number
CH891672A
Other languages
German (de)
Original Assignee
Sick Erwin
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 Sick Erwin filed Critical Sick Erwin
Publication of CH551622A publication Critical patent/CH551622A/en

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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CH891672A 1971-06-18 1972-06-14 METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF GASES BY OPTICAL EXTINCTION MEASUREMENT. CH551622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712130331 DE2130331C3 (en) 1971-06-18 1971-06-18 Method and device for determining the concentrations of the components of a mixture consisting of two gases and smoke

Publications (1)

Publication Number Publication Date
CH551622A true CH551622A (en) 1974-07-15

Family

ID=5811150

Family Applications (1)

Application Number Title Priority Date Filing Date
CH891672A CH551622A (en) 1971-06-18 1972-06-14 METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF GASES BY OPTICAL EXTINCTION MEASUREMENT.

Country Status (5)

Country Link
CH (1) CH551622A (en)
DE (1) DE2130331C3 (en)
FR (1) FR2142525A5 (en)
GB (1) GB1390227A (en)
IT (1) IT956679B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521934C3 (en) 1975-05-16 1978-11-02 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Device for determining the concentrations of components in an exhaust gas mixture
DE2559806C3 (en) * 1975-05-16 1985-12-12 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Device for determining the concentration of components of an exhaust gas mixture consisting of various gases and possibly smoke particles
DE2723939C2 (en) * 1977-05-24 1983-01-05 Hans-Jörg Dr.rer.nat. 8520 Erlangen Albrecht Device for respiratory gas analysis
NL85378C (en) * 1978-11-29
FR2464470A1 (en) * 1979-08-29 1981-03-06 Econics Corp ELECTRO-OPTICAL APPARATUS FOR ANALYZING A CARBON GAS
FR2474166A1 (en) * 1980-01-23 1981-07-24 Commissariat Energie Atomique PHOTOMETRIC MEASURING DEVICE FOR VARIABLE BACKGROUND NOISE COMPLEX SOLUTIONS
DE3541165A1 (en) * 1985-11-21 1987-05-27 Hellige Gmbh DEVICE FOR CONTINUOUSLY DETERMINING CONCENTRATION CHANGES IN MIXTURES
US8899097B2 (en) * 2011-10-18 2014-12-02 The Boeing Company Airborne impurities detection
US10925515B2 (en) 2014-05-22 2021-02-23 Picomole Inc. Alveolar breath collection apparatus
US10666012B2 (en) 2017-03-13 2020-05-26 Picomole Inc. Apparatus and method of optimizing laser system
US11035789B2 (en) 2019-04-03 2021-06-15 Picomole Inc. Cavity ring-down spectroscopy system and method of modulating a light beam therein
US11782049B2 (en) 2020-02-28 2023-10-10 Picomole Inc. Apparatus and method for collecting a breath sample using a container with controllable volume
US11957450B2 (en) 2020-02-28 2024-04-16 Picomole Inc. Apparatus and method for collecting a breath sample using an air circulation system

Also Published As

Publication number Publication date
DE2130331C3 (en) 1978-06-29
FR2142525A5 (en) 1973-01-26
DE2130331B2 (en) 1977-03-17
DE2130331A1 (en) 1972-12-21
IT956679B (en) 1973-10-10
GB1390227A (en) 1975-04-09

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Legal Events

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