GB2283351B - Liquid sensing detectors - Google Patents

Liquid sensing detectors

Info

Publication number
GB2283351B
GB2283351B GB9420409A GB9420409A GB2283351B GB 2283351 B GB2283351 B GB 2283351B GB 9420409 A GB9420409 A GB 9420409A GB 9420409 A GB9420409 A GB 9420409A GB 2283351 B GB2283351 B GB 2283351B
Authority
GB
United Kingdom
Prior art keywords
liquid sensing
sensing detectors
detectors
liquid
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
GB9420409A
Other versions
GB2283351A (en
GB9420409D0 (en
Inventor
Alastair Carradice
Adrian Mark Sharman
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.)
Sellafield Ltd
Original Assignee
British Nuclear Fuels 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 British Nuclear Fuels PLC filed Critical British Nuclear Fuels PLC
Publication of GB9420409D0 publication Critical patent/GB9420409D0/en
Publication of GB2283351A publication Critical patent/GB2283351A/en
Application granted granted Critical
Publication of GB2283351B publication Critical patent/GB2283351B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • 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
    • G01F23/241—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 for discrete levels
    • G01F23/243—Schematic arrangements of probes combined with measuring circuits
    • G01F23/244—Schematic arrangements of probes combined with measuring circuits comprising oscillating circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB9420409A 1993-10-27 1994-10-10 Liquid sensing detectors Expired - Fee Related GB2283351B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939322109A GB9322109D0 (en) 1993-10-27 1993-10-27 Liquid sensing detectors

Publications (3)

Publication Number Publication Date
GB9420409D0 GB9420409D0 (en) 1994-11-23
GB2283351A GB2283351A (en) 1995-05-03
GB2283351B true GB2283351B (en) 1996-10-23

Family

ID=10744172

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939322109A Pending GB9322109D0 (en) 1993-10-27 1993-10-27 Liquid sensing detectors
GB9420409A Expired - Fee Related GB2283351B (en) 1993-10-27 1994-10-10 Liquid sensing detectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939322109A Pending GB9322109D0 (en) 1993-10-27 1993-10-27 Liquid sensing detectors

Country Status (1)

Country Link
GB (2) GB9322109D0 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282908A (en) * 1993-10-15 1995-04-19 David Leo Ash Environmental sensor for blind people

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282908A (en) * 1993-10-15 1995-04-19 David Leo Ash Environmental sensor for blind people

Also Published As

Publication number Publication date
GB2283351A (en) 1995-05-03
GB9420409D0 (en) 1994-11-23
GB9322109D0 (en) 1993-12-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001010