FR2061805A5 - - Google Patents

Info

Publication number
FR2061805A5
FR2061805A5 FR6908510A FR6908510A FR2061805A5 FR 2061805 A5 FR2061805 A5 FR 2061805A5 FR 6908510 A FR6908510 A FR 6908510A FR 6908510 A FR6908510 A FR 6908510A FR 2061805 A5 FR2061805 A5 FR 2061805A5
Authority
FR
France
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
Application number
FR6908510A
Other languages
French (fr)
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.)
N Schlumberger SAS
Original Assignee
N Schlumberger SAS
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 N Schlumberger SAS filed Critical N Schlumberger SAS
Priority to FR6908510A priority Critical patent/FR2061805A5/fr
Application granted granted Critical
Publication of FR2061805A5 publication Critical patent/FR2061805A5/fr
Expired 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
    • G01N21/17—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

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)
FR6908510A 1969-03-24 1969-03-24 Expired FR2061805A5 (xx)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6908510A FR2061805A5 (xx) 1969-03-24 1969-03-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6908510A FR2061805A5 (xx) 1969-03-24 1969-03-24

Publications (1)

Publication Number Publication Date
FR2061805A5 true FR2061805A5 (xx) 1971-06-25

Family

ID=9031133

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6908510A Expired FR2061805A5 (xx) 1969-03-24 1969-03-24

Country Status (1)

Country Link
FR (1) FR2061805A5 (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493998A1 (fr) * 1980-11-12 1982-05-14 Foxboro Co Dispositif de transfert d'energie optique ne formant pas d'image
EP0616207A2 (de) * 1993-01-21 1994-09-21 I.T.V.I. International Techno Venture Invest Ag Detektor für brennbare Gase insbesondere Methan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493998A1 (fr) * 1980-11-12 1982-05-14 Foxboro Co Dispositif de transfert d'energie optique ne formant pas d'image
EP0616207A2 (de) * 1993-01-21 1994-09-21 I.T.V.I. International Techno Venture Invest Ag Detektor für brennbare Gase insbesondere Methan
EP0616207A3 (de) * 1993-01-21 1994-10-12 Itvi Inttech Venture Investa Detektor für brennbare Gase insbesondere Methan.

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Legal Events

Date Code Title Description
ST Notification of lapse