FR2204801B1 - - Google Patents

Info

Publication number
FR2204801B1
FR2204801B1 FR7338154A FR7338154A FR2204801B1 FR 2204801 B1 FR2204801 B1 FR 2204801B1 FR 7338154 A FR7338154 A FR 7338154A FR 7338154 A FR7338154 A FR 7338154A FR 2204801 B1 FR2204801 B1 FR 2204801B1
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
FR7338154A
Other languages
French (fr)
Other versions
FR2204801A1 (fi
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2204801A1 publication Critical patent/FR2204801A1/fr
Application granted granted Critical
Publication of FR2204801B1 publication Critical patent/FR2204801B1/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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
    • 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
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/0006—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature
    • H05H1/0012—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature using electromagnetic or particle radiation, e.g. interferometry
    • H05H1/0037—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature using electromagnetic or particle radiation, e.g. interferometry by spectrometry

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
FR7338154A 1972-10-26 1973-10-25 Expired FR2204801B1 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4946672A GB1447972A (en) 1972-10-26 1972-10-26 Plasma emission spectroscopy

Publications (2)

Publication Number Publication Date
FR2204801A1 FR2204801A1 (fi) 1974-05-24
FR2204801B1 true FR2204801B1 (fi) 1977-08-12

Family

ID=10452441

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7338154A Expired FR2204801B1 (fi) 1972-10-26 1973-10-25

Country Status (9)

Country Link
US (1) US3894803A (fi)
JP (2) JPS49135675A (fi)
BE (1) BE806611A (fi)
CA (1) CA1019472A (fi)
DE (1) DE2353817A1 (fi)
FR (1) FR2204801B1 (fi)
GB (1) GB1447972A (fi)
IT (1) IT998966B (fi)
NL (1) NL7314598A (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH638611A5 (de) * 1978-12-12 1983-09-30 Loepfe Ag Geb Vorrichtung zum messen einer querdimension eines laufenden gebildes, insbesondere eines fadens.
JPS58120154A (ja) * 1982-01-12 1983-07-16 Hitachi Ltd プラズマ分布モニタ方法
US5009099A (en) * 1989-05-09 1991-04-23 Varian Associates, Inc. Background correction method for use in gas chromatography

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577814A (en) * 1946-02-27 1951-12-11 Dow Chemical Co Photoelectric instrument for direct spectrochemical analysis by the internal standard method
US3610759A (en) * 1967-06-14 1971-10-05 Mercantile Safe Deposit And Tr Method and apparatus for analyzing atomic spectra of gas samples
US3565567A (en) * 1968-06-25 1971-02-23 Bausch & Lomb Method of and apparatus for measuring the presence and/or concentration of an element in an atomic vapor
US3588252A (en) * 1969-09-17 1971-06-28 Baird Atomic Inc Background suppression system for optical spectrometer
GB1353013A (en) * 1970-03-02 1974-05-15 Johnson Matthey Co Ltd Spectrometers and spectrometry
US3650630A (en) * 1970-06-12 1972-03-21 Baird Atomic Inc Forced zero subsystem, particularly for electro-optic background cancellation systems

Also Published As

Publication number Publication date
GB1447972A (en) 1976-09-02
JPS57116857U (fi) 1982-07-20
US3894803A (en) 1975-07-15
DE2353817A1 (de) 1974-06-12
IT998966B (it) 1976-02-20
NL7314598A (fi) 1974-05-01
JPS49135675A (fi) 1974-12-27
CA1019472A (en) 1977-10-18
FR2204801A1 (fi) 1974-05-24
BE806611A (fr) 1974-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse