FR2300339B1 - - Google Patents

Info

Publication number
FR2300339B1
FR2300339B1 FR7603545A FR7603545A FR2300339B1 FR 2300339 B1 FR2300339 B1 FR 2300339B1 FR 7603545 A FR7603545 A FR 7603545A FR 7603545 A FR7603545 A FR 7603545A FR 2300339 B1 FR2300339 B1 FR 2300339B1
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
FR7603545A
Other versions
FR2300339A1 (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.)
Leeds and Northrup Italiana SpA
Original Assignee
Leeds and Northrup Italiana SpA
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 Leeds and Northrup Italiana SpA filed Critical Leeds and Northrup Italiana SpA
Publication of FR2300339A1 publication Critical patent/FR2300339A1/fr
Application granted granted Critical
Publication of FR2300339B1 publication Critical patent/FR2300339B1/fr
Granted 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

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)
FR7603545A 1975-02-04 1976-02-03 Analyseur a rayons infrarouges a energie rayonnante constante Granted FR2300339A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19938/75A IT1031452B (it) 1975-02-04 1975-02-04 Analizzatore a raggi infrarossi con energia radiante cost ante

Publications (2)

Publication Number Publication Date
FR2300339A1 FR2300339A1 (fr) 1976-09-03
FR2300339B1 true FR2300339B1 (fr) 1980-02-15

Family

ID=11162489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603545A Granted FR2300339A1 (fr) 1975-02-04 1976-02-03 Analyseur a rayons infrarouges a energie rayonnante constante

Country Status (6)

Country Link
US (1) US4016423A (fr)
JP (1) JPS51103486A (fr)
DE (1) DE2601917A1 (fr)
FR (1) FR2300339A1 (fr)
GB (1) GB1521421A (fr)
IT (1) IT1031452B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467204A (en) * 1982-02-25 1984-08-21 American Crystal Sugar Company Apparatus and method for measuring optically active materials
US4480191A (en) * 1982-09-27 1984-10-30 Sun Electric Corporation Automatic gain control for an infrared source of an automotive emissions analyzer
HU200507B (en) * 1987-04-10 1990-06-28 Gabor Szabo Circuit arrangement for controlling differential measurements based on light intensity
CN112473019A (zh) * 2020-12-16 2021-03-12 迈尔健康科技(深圳)有限公司 一种保持红外热疗辐射平衡的方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775160A (en) * 1952-11-26 1956-12-25 Laurence W Foskett Apparatus for absorption spectra analysis
US2789230A (en) * 1954-03-19 1957-04-16 Phillips Petroleum Co Temperature compensator
US3409885A (en) * 1964-03-26 1968-11-05 Guardian Industries Smoke detection apparatus
US3517189A (en) * 1967-04-10 1970-06-23 Mine Safety Appliances Co Infrared gas analyzer wherein the detector comprises two optically spaced thermisters separated by an absorbing gas
NL6713063A (fr) * 1967-09-25 1969-03-27
US3539804A (en) * 1968-12-23 1970-11-10 Us Army Fluid analysis by infrared absorption
US3614450A (en) * 1969-02-17 1971-10-19 Measurex Corp Apparatus for measuring the amount of a substance that is associated with a base material
DE1911956A1 (de) * 1969-03-10 1970-09-24 Leitz Ernst Gmbh Fotoelektrische Einrichtung zum beruehrungslosen Bestimmen kleiner Lage- oder Winkelaenderungen von Objekten
US3662171A (en) * 1970-09-21 1972-05-09 Textron Inc Methane gas detection system using infrared
US3911277A (en) * 1974-07-25 1975-10-07 Beckman Instruments Inc Dual lighthouse detector

Also Published As

Publication number Publication date
IT1031452B (it) 1979-04-30
GB1521421A (en) 1978-08-16
DE2601917A1 (de) 1976-08-05
FR2300339A1 (fr) 1976-09-03
JPS51103486A (fr) 1976-09-13
US4016423A (en) 1977-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse