GB2312509B - Liquid sensor - Google Patents

Liquid sensor

Info

Publication number
GB2312509B
GB2312509B GB9708284A GB9708284A GB2312509B GB 2312509 B GB2312509 B GB 2312509B GB 9708284 A GB9708284 A GB 9708284A GB 9708284 A GB9708284 A GB 9708284A GB 2312509 B GB2312509 B GB 2312509B
Authority
GB
United Kingdom
Prior art keywords
liquid sensor
sensor
liquid
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
GB9708284A
Other versions
GB2312509A (en
GB9708284D0 (en
Inventor
Richard Hunter Brown
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of GB9708284D0 publication Critical patent/GB9708284D0/en
Publication of GB2312509A publication Critical patent/GB2312509A/en
Application granted granted Critical
Publication of GB2312509B publication Critical patent/GB2312509B/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
    • G01F23/28—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
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • 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
    • G01F23/296—Acoustic waves
    • G01F23/2961—Acoustic waves for discrete levels
    • 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
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • 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
    • G01F23/296—Acoustic waves
    • G01F23/2968—Transducers specially adapted for acoustic level indicators

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
GB9708284A 1996-04-26 1997-04-24 Liquid sensor Expired - Fee Related GB2312509B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9608752.3A GB9608752D0 (en) 1996-04-26 1996-04-26 Liquid sensor

Publications (3)

Publication Number Publication Date
GB9708284D0 GB9708284D0 (en) 1997-06-18
GB2312509A GB2312509A (en) 1997-10-29
GB2312509B true GB2312509B (en) 2000-09-27

Family

ID=10792755

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9608752.3A Pending GB9608752D0 (en) 1996-04-26 1996-04-26 Liquid sensor
GB9708284A Expired - Fee Related GB2312509B (en) 1996-04-26 1997-04-24 Liquid sensor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9608752.3A Pending GB9608752D0 (en) 1996-04-26 1996-04-26 Liquid sensor

Country Status (1)

Country Link
GB (2) GB9608752D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9608857D0 (en) * 1996-04-30 1996-07-03 Amp Great Britain Liquid level sensing device
US7418860B2 (en) 2004-10-05 2008-09-02 Parker-Hannifan Corporation Ultrasonic fluid level sensor
DE102011089685B4 (en) 2011-12-22 2018-09-27 Continental Automotive Gmbh Measuring arrangement for determining a fill level and / or a concentration of a liquid
CN107257717B (en) * 2015-02-20 2021-07-20 麦角灵实验室公司 Measuring method, system and sensor for a continuous casting machine
DE102019216047A1 (en) * 2019-10-17 2020-10-08 Vitesco Technologies Germany Gmbh Arrangement and method for determining a minimum fill level of a fluid in a fluid container

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004465A1 (en) * 1987-11-02 1989-05-18 United Technologies Corporation Optical fluid level sensor
GB2212908A (en) * 1987-11-17 1989-08-02 Abnor Marketing International Fluid level detector
US5095748A (en) * 1990-08-06 1992-03-17 Tidel Engineering, Inc. Sonic tank monitoring system
EP0515254A1 (en) * 1991-05-22 1992-11-25 Automobiles Peugeot Device for measuring liquid level in a tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004465A1 (en) * 1987-11-02 1989-05-18 United Technologies Corporation Optical fluid level sensor
GB2212908A (en) * 1987-11-17 1989-08-02 Abnor Marketing International Fluid level detector
US5095748A (en) * 1990-08-06 1992-03-17 Tidel Engineering, Inc. Sonic tank monitoring system
EP0515254A1 (en) * 1991-05-22 1992-11-25 Automobiles Peugeot Device for measuring liquid level in a tank

Also Published As

Publication number Publication date
GB2312509A (en) 1997-10-29
GB9608752D0 (en) 1996-07-03
GB9708284D0 (en) 1997-06-18

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020424