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FR1556072A - - Google Patents

Info

Publication number
FR1556072A
FR1556072A FR1556072DA FR1556072A FR 1556072 A FR1556072 A FR 1556072A FR 1556072D A FR1556072D A FR 1556072DA FR 1556072 A FR1556072 A FR 1556072A
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1556072A publication Critical patent/FR1556072A/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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR1556072D 1967-03-10 1968-03-04 Expired FR1556072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1149267A GB1141125A (en) 1967-03-10 1967-03-10 A gas turbine engine installation

Publications (1)

Publication Number Publication Date
FR1556072A true FR1556072A (en) 1969-01-31

Family

ID=9987249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1556072D Expired FR1556072A (en) 1967-03-10 1968-03-04

Country Status (2)

Country Link
FR (1) FR1556072A (en)
GB (1) GB1141125A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK466080A (en) * 1979-11-14 1981-05-15 Carrier Corp PROCEDURE AND APPARATUS FOR MONITORING THE TIGHTNESS OF PARTICULATE MATERIAL CARRIED IN A GAS FLOW
DE4343897A1 (en) * 1993-12-22 1995-06-29 Bosch Gmbh Robert Device for determining the density and concentration of visible components in fluids
GB2428087B (en) 2005-07-07 2009-12-23 Rolls Royce Plc A gas turbine engine incorporating an engine monitoring arrangement for monitoring gas constituents in an exhaust flow

Also Published As

Publication number Publication date
GB1141125A (en) 1969-01-29

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse