ES447145A1 - Circuito detector del nivel de liquido de aceite en los mo- tores de vehiculos automoviles. - Google Patents

Circuito detector del nivel de liquido de aceite en los mo- tores de vehiculos automoviles.

Info

Publication number
ES447145A1
ES447145A1 ES447145A ES447145A ES447145A1 ES 447145 A1 ES447145 A1 ES 447145A1 ES 447145 A ES447145 A ES 447145A ES 447145 A ES447145 A ES 447145A ES 447145 A1 ES447145 A1 ES 447145A1
Authority
ES
Spain
Prior art keywords
liquid level
probe
level detector
reference capacitor
further capacitors
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
ES447145A
Other languages
English (en)
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical Co Ltd
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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Publication of ES447145A1 publication Critical patent/ES447145A1/es
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)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
ES447145A 1975-04-19 1976-04-19 Circuito detector del nivel de liquido de aceite en los mo- tores de vehiculos automoviles. Expired ES447145A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16262/75A GB1549851A (en) 1975-04-19 1975-04-19 Liquid level detector circuits

Publications (1)

Publication Number Publication Date
ES447145A1 true ES447145A1 (es) 1977-06-16

Family

ID=10074152

Family Applications (1)

Application Number Title Priority Date Filing Date
ES447145A Expired ES447145A1 (es) 1975-04-19 1976-04-19 Circuito detector del nivel de liquido de aceite en los mo- tores de vehiculos automoviles.

Country Status (10)

Country Link
US (1) US4107658A (es)
JP (1) JPS51129262A (es)
AR (1) AR210487A1 (es)
AU (1) AU509701B2 (es)
DE (1) DE2617177A1 (es)
ES (1) ES447145A1 (es)
FR (1) FR2308092A1 (es)
GB (1) GB1549851A (es)
IT (1) IT1061222B (es)
ZA (1) ZA762188B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1598447A (en) * 1977-01-18 1981-09-23 Lucas Industries Ltd Liquid level indicators
JPS5619723U (es) * 1979-07-23 1981-02-21
US4250750A (en) * 1979-10-09 1981-02-17 Ford Motor Company Liquid level measuring system
US4316174A (en) * 1979-12-26 1982-02-16 General Motors Corporation Threshold detector for a condition indication
JPS57114822A (en) * 1981-01-09 1982-07-16 Nissan Motor Co Ltd Electrostatic capacity type dosimeter
US4356406A (en) * 1981-02-17 1982-10-26 Honeywell Inc. Conductive fluid probe powering means
US4624139A (en) * 1984-09-21 1986-11-25 Berwind Corporation Capacitance-type material level indicator
US5005409A (en) * 1989-01-13 1991-04-09 Teleflex Incorporated Capacitive liquid sensor
JP2732685B2 (ja) * 1989-10-31 1998-03-30 株式会社東芝 圧縮機における冷媒溶け込み量検出方法
US5196729A (en) * 1990-03-30 1993-03-23 Thorngren John T Liquid activated control switch
US6975216B2 (en) * 2003-06-04 2005-12-13 Briggs & Stratton Corporation System and method for indicating fluid condition
CN101680908B (zh) 2007-04-18 2016-08-03 贝克顿·迪金森公司 用于确定分配体积的方法和装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1440574A (en) * 1972-07-01 1976-06-23 Lucas Electrical Ltd Liquid level detecting circuits

Also Published As

Publication number Publication date
IT1061222B (it) 1983-02-28
GB1549851A (en) 1979-08-08
DE2617177A1 (de) 1976-10-28
AU509701B2 (en) 1980-05-22
AR210487A1 (es) 1977-08-15
FR2308092B1 (es) 1980-12-19
ZA762188B (en) 1977-04-27
US4107658A (en) 1978-08-15
AU1307076A (en) 1977-10-20
JPS51129262A (en) 1976-11-10
FR2308092A1 (fr) 1976-11-12

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