ES446646A1 - Liquid level sensors - Google Patents

Liquid level sensors

Info

Publication number
ES446646A1
ES446646A1 ES446646A ES446646A ES446646A1 ES 446646 A1 ES446646 A1 ES 446646A1 ES 446646 A ES446646 A ES 446646A ES 446646 A ES446646 A ES 446646A ES 446646 A1 ES446646 A1 ES 446646A1
Authority
ES
Spain
Prior art keywords
liquid level
sensor element
level sensors
liquid
predetermined
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
ES446646A
Other languages
Spanish (es)
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.)
Automotive Products PLC
Original Assignee
Automotive Products 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 Automotive Products PLC filed Critical Automotive Products PLC
Publication of ES446646A1 publication Critical patent/ES446646A1/en
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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid
    • G01F23/246—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 resistance of resistors due to contact with conductor fluid thermal devices
    • G01F23/247—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 resistance of resistors due to contact with conductor fluid thermal devices for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Closures For Containers (AREA)
  • Level Indicators Using A Float (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

Improvements in liquid level detecting devices, characterized in that a sensor element is arranged to provide a first electrical series when it is submerged in the liquid below a predetermined level and a second electrical signal when it is above the liquid, and means to hold the sensor element in a closed container below the predetermined liquid level and to raise the sensor element above the predetermined liquid level but keeping the container in a closed state. (Machine-translation by Google Translate, not legally binding)
ES446646A 1975-04-04 1976-04-02 Liquid level sensors Expired ES446646A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1382275A GB1496278A (en) 1975-04-04 1975-04-04 Liquid level sensors

Publications (1)

Publication Number Publication Date
ES446646A1 true ES446646A1 (en) 1977-06-01

Family

ID=10030020

Family Applications (1)

Application Number Title Priority Date Filing Date
ES446646A Expired ES446646A1 (en) 1975-04-04 1976-04-02 Liquid level sensors

Country Status (4)

Country Link
JP (1) JPS51123180A (en)
ES (1) ES446646A1 (en)
FR (1) FR2306434A1 (en)
GB (1) GB1496278A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10144424B2 (en) * 2015-04-09 2018-12-04 Toyota Jidosha Kabushiki Kaisha Arrangement structure for vicinity information detection sensor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098914A (en) * 1961-04-27 1963-07-23 Amedio W Giannino Oil level warning devices
FR1391944A (en) * 1964-01-29 1965-03-12 Alcatel Sa Liquefied gas level measuring device
DE1548956A1 (en) * 1966-02-26 1970-04-16 Felten & Guilleaume Carlswerk Liquid level indicator for liquid containers, especially oil containers
FR2098282B1 (en) * 1970-07-09 1975-02-07 Abrahamsson G Ingf Ab
DE2306216A1 (en) * 1973-02-08 1974-08-15 Loos Gmbh Eisenwerk Theodor AUTOMATIC FUNCTIONAL CHECK DEVICE FOR FLOAT DEVICES

Also Published As

Publication number Publication date
JPS51123180A (en) 1976-10-27
FR2306434A1 (en) 1976-10-29
FR2306434B1 (en) 1979-08-31
GB1496278A (en) 1977-12-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19840222