FR2372420B1 - - Google Patents

Info

Publication number
FR2372420B1
FR2372420B1 FR7635786A FR7635786A FR2372420B1 FR 2372420 B1 FR2372420 B1 FR 2372420B1 FR 7635786 A FR7635786 A FR 7635786A FR 7635786 A FR7635786 A FR 7635786A FR 2372420 B1 FR2372420 B1 FR 2372420B1
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
FR7635786A
Other languages
French (fr)
Other versions
FR2372420A1 (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.)
Grumman Corp
Original Assignee
Grumman Aerospace Corp
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 Grumman Aerospace Corp filed Critical Grumman Aerospace Corp
Priority to FR7635786A priority Critical patent/FR2372420A1/fr
Publication of FR2372420A1 publication Critical patent/FR2372420A1/fr
Application granted granted Critical
Publication of FR2372420B1 publication Critical patent/FR2372420B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7635786A 1976-11-26 1976-11-26 Dispositif electro-optique pour la mesure d'un niveau de fluide Granted FR2372420A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7635786A FR2372420A1 (fr) 1976-11-26 1976-11-26 Dispositif electro-optique pour la mesure d'un niveau de fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7635786A FR2372420A1 (fr) 1976-11-26 1976-11-26 Dispositif electro-optique pour la mesure d'un niveau de fluide

Publications (2)

Publication Number Publication Date
FR2372420A1 FR2372420A1 (fr) 1978-06-23
FR2372420B1 true FR2372420B1 (enExample) 1982-12-31

Family

ID=9180383

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7635786A Granted FR2372420A1 (fr) 1976-11-26 1976-11-26 Dispositif electro-optique pour la mesure d'un niveau de fluide

Country Status (1)

Country Link
FR (1) FR2372420A1 (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120125A (en) * 1960-08-03 1964-02-04 American Pyrotector Inc Liquid level determining devices and method
DE1817027B1 (de) * 1968-12-24 1970-03-05 Danfoss As Fuellstandanzeiger
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator

Also Published As

Publication number Publication date
FR2372420A1 (fr) 1978-06-23

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Legal Events

Date Code Title Description
ST Notification of lapse