GB2393872B - Water leakage detector - Google Patents

Water leakage detector

Info

Publication number
GB2393872B
GB2393872B GB0329045A GB0329045A GB2393872B GB 2393872 B GB2393872 B GB 2393872B GB 0329045 A GB0329045 A GB 0329045A GB 0329045 A GB0329045 A GB 0329045A GB 2393872 B GB2393872 B GB 2393872B
Authority
GB
United Kingdom
Prior art keywords
water leakage
leakage detector
detector
water
leakage
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
GB0329045A
Other versions
GB2393872A (en
GB0329045D0 (en
Inventor
Tsuneo Miyamoto
Masashi Matsuki
Toru Sano
Yasunari Mori
Hirotaka Ohashi
Hideyuki Fujita
Takuya Tasaki
Shunji Tananmura
Fujio Oka
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to GB0329045A priority Critical patent/GB2393872B/en
Priority claimed from GB0116258A external-priority patent/GB2362529B/en
Publication of GB0329045D0 publication Critical patent/GB0329045D0/en
Publication of GB2393872A publication Critical patent/GB2393872A/en
Application granted granted Critical
Publication of GB2393872B publication Critical patent/GB2393872B/en
Priority to GB0419228A priority patent/GB2406294B/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
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • G01V9/02—Determining existence or flow of underground water

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB0329045A 1999-12-03 1999-12-03 Water leakage detector Expired - Fee Related GB2393872B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0329045A GB2393872B (en) 1999-12-03 1999-12-03 Water leakage detector
GB0419228A GB2406294B (en) 1999-12-03 2004-08-31 Natural gas liquids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0329045A GB2393872B (en) 1999-12-03 1999-12-03 Water leakage detector
GB0116258A GB2362529B (en) 1999-12-03 1999-12-03 Water leakage detector and antenna thereof

Publications (3)

Publication Number Publication Date
GB0329045D0 GB0329045D0 (en) 2004-01-14
GB2393872A GB2393872A (en) 2004-04-07
GB2393872B true GB2393872B (en) 2004-05-26

Family

ID=31971109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0329045A Expired - Fee Related GB2393872B (en) 1999-12-03 1999-12-03 Water leakage detector

Country Status (1)

Country Link
GB (1) GB2393872B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE534215C2 (en) * 2009-10-15 2011-06-07 Totalfoersvarets Forskningsins Device and method for detecting water flow
SE535666C2 (en) 2011-03-11 2012-10-30 Totalfoersvarets Forskningsins Method and apparatus for crawling racial masses
CN113945986B (en) * 2021-03-16 2024-05-10 深圳迈睿智能科技有限公司 Doppler microwave detection device and gain improvement method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11352001A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Water leakage detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11352001A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Water leakage detector

Also Published As

Publication number Publication date
GB2393872A (en) 2004-04-07
GB0329045D0 (en) 2004-01-14

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Legal Events

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

Effective date: 20051203