FR2656688B1 - - Google Patents

Info

Publication number
FR2656688B1
FR2656688B1 FR8917425A FR8917425A FR2656688B1 FR 2656688 B1 FR2656688 B1 FR 2656688B1 FR 8917425 A FR8917425 A FR 8917425A FR 8917425 A FR8917425 A FR 8917425A FR 2656688 B1 FR2656688 B1 FR 2656688B1
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 - Fee Related
Application number
FR8917425A
Other languages
French (fr)
Other versions
FR2656688A1 (en
Inventor
Yves Hennequin
Catherine Jury
Original Assignee
Jaeger
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 Jaeger filed Critical Jaeger
Priority to FR8917425A priority Critical patent/FR2656688A1/en
Publication of FR2656688A1 publication Critical patent/FR2656688A1/en
Application granted granted Critical
Publication of FR2656688B1 publication Critical patent/FR2656688B1/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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/686—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
    • 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
FR8917425A 1989-12-29 1989-12-29 Device for measuring the level of liquid in a tank by optical determination of the position of a float Granted FR2656688A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8917425A FR2656688A1 (en) 1989-12-29 1989-12-29 Device for measuring the level of liquid in a tank by optical determination of the position of a float

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8917425A FR2656688A1 (en) 1989-12-29 1989-12-29 Device for measuring the level of liquid in a tank by optical determination of the position of a float

Publications (2)

Publication Number Publication Date
FR2656688A1 FR2656688A1 (en) 1991-07-05
FR2656688B1 true FR2656688B1 (en) 1994-04-22

Family

ID=9389132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8917425A Granted FR2656688A1 (en) 1989-12-29 1989-12-29 Device for measuring the level of liquid in a tank by optical determination of the position of a float

Country Status (1)

Country Link
FR (1) FR2656688A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217669A1 (en) * 1992-05-28 1993-04-01 Daimler Benz Ag Non-contact level monitor for fluid tank, esp. vehicle fuel tank - has reflective float for light beam from fixed source and with array of photocells to monitor reflected light
WO1997042470A1 (en) * 1995-03-28 1997-11-13 Albrigtsen Aage Level-measuring equipment for liquids
ES2135337B1 (en) * 1997-08-07 2000-05-16 Garcia Ramon Ferreiro LEVEL PHOTOVOLTAIC PROBE.
US6872933B2 (en) 1998-07-15 2005-03-29 Alvin R. Wirthlin Optical transducer
DE10019223A1 (en) * 2000-04-18 2001-10-31 Pelikan Produktions Ag Egg System for detecting a liquid level in a container
US6604408B2 (en) * 2001-03-02 2003-08-12 Matec Instrument Companies, Inc. Device for use in determining characteristics of particles dispersed in a medium, and method therefor
US7062967B2 (en) * 2003-07-08 2006-06-20 Daimlerchrysler Corporation Fuel level sensor
CN113029294A (en) * 2021-02-26 2021-06-25 浙江金象科技有限公司 Tank car liquid level measurement system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1524761A (en) * 1977-01-26 1978-09-13 Ito Patent Ag Method of and apparatus formonitoring the level of material in a storage container

Also Published As

Publication number Publication date
FR2656688A1 (en) 1991-07-05

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Legal Events

Date Code Title Description
ST Notification of lapse