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GB2312749B - Fluid level sensing device - Google Patents

Fluid level sensing device

Info

Publication number
GB2312749B
GB2312749B GB9708852A GB9708852A GB2312749B GB 2312749 B GB2312749 B GB 2312749B GB 9708852 A GB9708852 A GB 9708852A GB 9708852 A GB9708852 A GB 9708852A GB 2312749 B GB2312749 B GB 2312749B
Authority
GB
United Kingdom
Prior art keywords
sensing device
fluid level
level sensing
fluid
sensing
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
GB9708852A
Other versions
GB9708852D0 (en
GB2312749A (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 GB9708852D0 publication Critical patent/GB9708852D0/en
Publication of GB2312749A publication Critical patent/GB2312749A/en
Application granted granted Critical
Publication of GB2312749B publication Critical patent/GB2312749B/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
    • G01F23/2962—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
    • 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

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Level Indicators Using A Float (AREA)
GB9708852A 1996-04-30 1997-04-30 Fluid level sensing device Expired - Fee Related GB2312749B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9608857.0A GB9608857D0 (en) 1996-04-30 1996-04-30 Liquid level sensing device

Publications (3)

Publication Number Publication Date
GB9708852D0 GB9708852D0 (en) 1997-06-25
GB2312749A GB2312749A (en) 1997-11-05
GB2312749B true GB2312749B (en) 2000-06-21

Family

ID=10792835

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9608857.0A Pending GB9608857D0 (en) 1996-04-30 1996-04-30 Liquid level sensing device
GB9708852A Expired - Fee Related GB2312749B (en) 1996-04-30 1997-04-30 Fluid level sensing device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9608857.0A Pending GB9608857D0 (en) 1996-04-30 1996-04-30 Liquid level sensing device

Country Status (2)

Country Link
GB (2) GB9608857D0 (en)
IT (1) IT1292274B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0708271D0 (en) * 2007-04-28 2007-06-06 Pulsar Process Measurement Ltd Distance measurement apparatus and related methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312509A (en) * 1996-04-26 1997-10-29 Whitaker Corp Ultrasonic liquid sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312509A (en) * 1996-04-26 1997-10-29 Whitaker Corp Ultrasonic liquid sensor

Also Published As

Publication number Publication date
GB9708852D0 (en) 1997-06-25
GB9608857D0 (en) 1996-07-03
IT1292274B1 (en) 1999-01-29
ITTO970348A1 (en) 1998-10-23
ITTO970348A0 (en) 1997-04-23
GB2312749A (en) 1997-11-05

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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: 20020430