FR2795816B1 - LEVEL SENSOR - Google Patents

LEVEL SENSOR

Info

Publication number
FR2795816B1
FR2795816B1 FR9908547A FR9908547A FR2795816B1 FR 2795816 B1 FR2795816 B1 FR 2795816B1 FR 9908547 A FR9908547 A FR 9908547A FR 9908547 A FR9908547 A FR 9908547A FR 2795816 B1 FR2795816 B1 FR 2795816B1
Authority
FR
France
Prior art keywords
level sensor
sensor
level
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 - Fee Related
Application number
FR9908547A
Other languages
French (fr)
Other versions
FR2795816A1 (en
Inventor
Francois Baillieu
Frederic Levacher
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.)
ROXER
Original Assignee
ROXER
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 ROXER filed Critical ROXER
Priority to FR9908547A priority Critical patent/FR2795816B1/en
Priority to AU61648/00A priority patent/AU6164800A/en
Priority to PCT/FR2000/001867 priority patent/WO2001002817A1/en
Publication of FR2795816A1 publication Critical patent/FR2795816A1/en
Application granted granted Critical
Publication of FR2795816B1 publication Critical patent/FR2795816B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
FR9908547A 1999-07-02 1999-07-02 LEVEL SENSOR Expired - Fee Related FR2795816B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9908547A FR2795816B1 (en) 1999-07-02 1999-07-02 LEVEL SENSOR
AU61648/00A AU6164800A (en) 1999-07-02 2000-06-30 Level sensor-switch
PCT/FR2000/001867 WO2001002817A1 (en) 1999-07-02 2000-06-30 Level sensor-switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9908547A FR2795816B1 (en) 1999-07-02 1999-07-02 LEVEL SENSOR

Publications (2)

Publication Number Publication Date
FR2795816A1 FR2795816A1 (en) 2001-01-05
FR2795816B1 true FR2795816B1 (en) 2001-09-28

Family

ID=9547637

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9908547A Expired - Fee Related FR2795816B1 (en) 1999-07-02 1999-07-02 LEVEL SENSOR

Country Status (3)

Country Link
AU (1) AU6164800A (en)
FR (1) FR2795816B1 (en)
WO (1) WO2001002817A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1677084A1 (en) * 2004-12-22 2006-07-05 Roxer Industries S.A. LIquid level sensor and method of estimation
BRPI0617799A2 (en) * 2005-10-26 2016-11-29 Inergy Automotive Systems Res capacitive meter, use of a meter, and motor vehicle
FR2892509B1 (en) 2005-10-26 2007-12-21 Inergy Automotive Systems Res CAPACITIVE GAUGE FOR FUEL TANK
FR2892508B1 (en) * 2005-10-26 2007-12-28 Inergy Automotive Systems Res CAPACITIVE GAUGE
WO2008049913A1 (en) 2006-10-26 2008-05-02 Inergy Automotive Systems Research (Société Anonyme) Process for measuring a liquid level in a tank and associated system
US10203238B2 (en) 2014-03-07 2019-02-12 Barrelogix, Llc Liquid detection apparatus
CN108645481B (en) * 2018-06-22 2021-03-16 华帝股份有限公司 Non-contact capacitance liquid level detection method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058364B (en) * 1979-09-01 1983-03-23 Ferranti Ltd Capacitance measuring apparatus
US4947689A (en) * 1989-01-13 1990-08-14 Hochstein Peter A Capacitive liquid sensor
US5461321A (en) * 1993-09-17 1995-10-24 Penberthy, Inc. Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle
WO1999010714A1 (en) * 1997-08-25 1999-03-04 Millennium Sensors Ltd. A compensated capacitive liquid level sensor

Also Published As

Publication number Publication date
FR2795816A1 (en) 2001-01-05
AU6164800A (en) 2001-01-22
WO2001002817A1 (en) 2001-01-11

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
TP Transmission of property
TP Transmission of property
PLFP Fee payment

Year of fee payment: 17

ST Notification of lapse

Effective date: 20170331