FR726484A - Indicateur de la densité de fumées - Google Patents

Indicateur de la densité de fumées

Info

Publication number
FR726484A
FR726484A FR726484DA FR726484A FR 726484 A FR726484 A FR 726484A FR 726484D A FR726484D A FR 726484DA FR 726484 A FR726484 A FR 726484A
Authority
FR
France
Prior art keywords
smoke density
density indicator
indicator
smoke
density
Prior art date
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
English (en)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR726484A publication Critical patent/FR726484A/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

Landscapes

  • Physics & Mathematics (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)
FR726484D 1930-11-19 1931-11-17 Indicateur de la densité de fumées Expired FR726484A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE624724T 1930-11-19

Publications (1)

Publication Number Publication Date
FR726484A true FR726484A (fr) 1932-05-30

Family

ID=34812912

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726484D Expired FR726484A (fr) 1930-11-19 1931-11-17 Indicateur de la densité de fumées

Country Status (2)

Country Link
DE (1) DE624724C (de)
FR (1) FR726484A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812686A (en) * 1953-12-22 1957-11-12 Johns Manville Smoke photometer
US2839963A (en) * 1953-12-18 1958-06-24 Lever Brothers Ltd Light transmission inspection device for liquids
US2935909A (en) * 1957-04-18 1960-05-10 Graviner Manufacturing Co Detectors of oil mists and the like

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3235055A1 (de) * 1982-09-22 1984-03-22 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Mobile messsonde zur feststellung der rauchdichte bzw. staubkonzentration
AT2226U1 (de) * 1997-07-28 1998-06-25 Avl List Gmbh Vorrichtung zur trübungsmessung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839963A (en) * 1953-12-18 1958-06-24 Lever Brothers Ltd Light transmission inspection device for liquids
US2812686A (en) * 1953-12-22 1957-11-12 Johns Manville Smoke photometer
US2935909A (en) * 1957-04-18 1960-05-10 Graviner Manufacturing Co Detectors of oil mists and the like

Also Published As

Publication number Publication date
DE624724C (de) 1936-01-28

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