FR2201459B1 - - Google Patents

Info

Publication number
FR2201459B1
FR2201459B1 FR7233712A FR7233712A FR2201459B1 FR 2201459 B1 FR2201459 B1 FR 2201459B1 FR 7233712 A FR7233712 A FR 7233712A FR 7233712 A FR7233712 A FR 7233712A FR 2201459 B1 FR2201459 B1 FR 2201459B1
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
FR7233712A
Other versions
FR2201459A1 (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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Priority to FR7233712A priority Critical patent/FR2201459B1/fr
Publication of FR2201459A1 publication Critical patent/FR2201459A1/fr
Application granted granted Critical
Publication of FR2201459B1 publication Critical patent/FR2201459B1/fr
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
FR7233712A 1972-09-22 1972-09-22 Expired FR2201459B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7233712A FR2201459B1 (fr) 1972-09-22 1972-09-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233712A FR2201459B1 (fr) 1972-09-22 1972-09-22

Publications (2)

Publication Number Publication Date
FR2201459A1 FR2201459A1 (fr) 1974-04-26
FR2201459B1 true FR2201459B1 (fr) 1976-08-13

Family

ID=9104678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7233712A Expired FR2201459B1 (fr) 1972-09-22 1972-09-22

Country Status (1)

Country Link
FR (1) FR2201459B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672390B1 (fr) * 1991-02-01 1994-12-30 Seb Sa Detecteur de remplissage, de presence et de positionnement d'un reservoir de liquide.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190027A (en) * 1939-02-11 1940-02-13 Jordan Henry Ewin Liquid detecting device
GB859104A (en) * 1958-04-10 1961-01-18 Bendix Corp Level sensors
GB906609A (en) * 1959-11-20 1962-09-26 Nat Res Dev Improvements in or relating to photo-electric materials testing equipment
FR1266565A (fr) * 1960-05-31 1961-07-17 Propulsion Par Reaction S E P Détecteur optique de niveau liquide
AT263405B (de) * 1965-04-29 1968-07-25 Hectronic Ag Lichtelektrischer Flüssigkeitsdetektor

Also Published As

Publication number Publication date
FR2201459A1 (fr) 1974-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse