FR91298E - Apparatus for measuring, in particular, the density of a gas - Google Patents

Apparatus for measuring, in particular, the density of a gas

Info

Publication number
FR91298E
FR91298E FR87455A FR87455A FR91298E FR 91298 E FR91298 E FR 91298E FR 87455 A FR87455 A FR 87455A FR 87455 A FR87455 A FR 87455A FR 91298 E FR91298 E FR 91298E
Authority
FR
France
Prior art keywords
density
measuring
gas
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
FR87455A
Other languages
French (fr)
Inventor
Henri Leon Edouard Martineau
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
Priority to FR87455A priority Critical patent/FR91298E/en
Application granted granted Critical
Publication of FR91298E publication Critical patent/FR91298E/en
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
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/4133—Refractometers, e.g. differential

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)
FR87455A 1966-12-14 1966-12-14 Apparatus for measuring, in particular, the density of a gas Expired FR91298E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR87455A FR91298E (en) 1966-12-14 1966-12-14 Apparatus for measuring, in particular, the density of a gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR87455A FR91298E (en) 1966-12-14 1966-12-14 Apparatus for measuring, in particular, the density of a gas

Publications (1)

Publication Number Publication Date
FR91298E true FR91298E (en) 1968-05-17

Family

ID=8622432

Family Applications (1)

Application Number Title Priority Date Filing Date
FR87455A Expired FR91298E (en) 1966-12-14 1966-12-14 Apparatus for measuring, in particular, the density of a gas

Country Status (1)

Country Link
FR (1) FR91298E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233327A2 (en) * 1985-11-21 1987-08-26 BROWN, BOVERI & CIE Aktiengesellschaft Apparatus for optically measuring the density of gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233327A2 (en) * 1985-11-21 1987-08-26 BROWN, BOVERI & CIE Aktiengesellschaft Apparatus for optically measuring the density of gases
EP0233327A3 (en) * 1985-11-21 1989-03-15 BROWN, BOVERI & CIE Aktiengesellschaft Apparatus for optically measuring the density of gases

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