FR2488988B1 - Systeme et procede de determination de la quantite de fluide contenue dans un reservoir - Google Patents

Systeme et procede de determination de la quantite de fluide contenue dans un reservoir

Info

Publication number
FR2488988B1
FR2488988B1 FR8116110A FR8116110A FR2488988B1 FR 2488988 B1 FR2488988 B1 FR 2488988B1 FR 8116110 A FR8116110 A FR 8116110A FR 8116110 A FR8116110 A FR 8116110A FR 2488988 B1 FR2488988 B1 FR 2488988B1
Authority
FR
France
Prior art keywords
tank
determining
fluid contained
fluid
contained
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
FR8116110A
Other languages
English (en)
Other versions
FR2488988A1 (fr
Inventor
Ronald Vincent Myers
Peter Robert Thrift
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Publication of FR2488988A1 publication Critical patent/FR2488988A1/fr
Application granted granted Critical
Publication of FR2488988B1 publication Critical patent/FR2488988B1/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
    • G01F23/26—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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
FR8116110A 1980-08-23 1981-08-21 Systeme et procede de determination de la quantite de fluide contenue dans un reservoir Expired FR2488988B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8027500 1980-08-23

Publications (2)

Publication Number Publication Date
FR2488988A1 FR2488988A1 (fr) 1982-02-26
FR2488988B1 true FR2488988B1 (fr) 1987-10-30

Family

ID=10515631

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8116110A Expired FR2488988B1 (fr) 1980-08-23 1981-08-21 Systeme et procede de determination de la quantite de fluide contenue dans un reservoir

Country Status (3)

Country Link
US (1) US4583402A (fr)
FR (1) FR2488988B1 (fr)
GB (1) GB2094004B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525792A (en) * 1982-03-29 1985-06-25 Smiths Industries Public Limited Company Unidirectional capacitive fluid-gauging systems
US4539835A (en) * 1983-10-28 1985-09-10 Control Data Corporation Calibration apparatus for capacitance height gauges
US4586033A (en) * 1984-02-13 1986-04-29 Emhart Industries, Inc. Fluid detection system
US4875497A (en) * 1984-04-23 1989-10-24 Worthington Ralph T Capacitance liquid level sensing and touch control system
GB2160656A (en) * 1984-06-22 1985-12-24 Seasim Controls Ltd Monitoring fluctuating physical variables
DE3610166A1 (de) * 1985-04-03 1986-10-09 Smiths Industries Public Ltd. Co., London Fuellstandsmessgeraet
GB8602742D0 (en) * 1986-02-04 1986-03-12 Mestra Ag Capacitive sensor circuit
US4908783A (en) * 1987-04-28 1990-03-13 Simmonds Precision Products, Inc. Apparatus and method for determining liquid levels
US4841227A (en) * 1987-06-01 1989-06-20 Simmonds Precision Products, Inc. Apparatus for the ratiometric measurement of a quantity of liquid in a tank
US5856783A (en) * 1990-01-02 1999-01-05 Raptor, Inc. Pump control system
GB0121418D0 (en) * 2001-09-04 2001-10-24 Smiths Group Plc Capacitance measuring systems
US11796374B2 (en) * 2020-04-17 2023-10-24 Goodrich Corporation Composite water tank level sensor
US11733278B2 (en) 2020-08-27 2023-08-22 Jenariah, Llc Conductivity measurement device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267378A (en) * 1962-03-26 1966-08-16 Beckman Instruments Inc A. c. measuring circuit having an amplifier with feedback path in which a synchronous switch output drives a d. c. meter
US3230433A (en) * 1962-06-12 1966-01-18 Simmonds Precision Products Quadrature rejector for fuel gauges
GB1425019A (en) * 1972-11-30 1976-02-18 Bookdeal Electronics Ltd Electronic phase-sensitive detector circuit arrangements
US4110740A (en) * 1976-02-09 1978-08-29 Nippon Soken, Inc. Liquid level detecting apparatus
US4259865A (en) * 1978-10-12 1981-04-07 Smiths Industries Limited Fluid-gauging systems

Also Published As

Publication number Publication date
FR2488988A1 (fr) 1982-02-26
GB2094004A (en) 1982-09-08
US4583402A (en) 1986-04-22
GB2094004B (en) 1984-05-02

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Legal Events

Date Code Title Description
ST Notification of lapse