GB2362529B - Water leakage detector and antenna thereof - Google Patents

Water leakage detector and antenna thereof

Info

Publication number
GB2362529B
GB2362529B GB0116258A GB0116258A GB2362529B GB 2362529 B GB2362529 B GB 2362529B GB 0116258 A GB0116258 A GB 0116258A GB 0116258 A GB0116258 A GB 0116258A GB 2362529 B GB2362529 B GB 2362529B
Authority
GB
United Kingdom
Prior art keywords
antenna
water leakage
leakage detector
detector
water
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
GB0116258A
Other versions
GB0116258D0 (en
GB2362529A (en
Inventor
Tsuneo Miyamoto
Masashi Matsuki
Toru Sano
Takuya Tasaki
Shunji Tanamura
Fujio Oka
Yasunari Mori
Hirotaka Ohashi
Hideyuki Fujita
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
Tokyo Metropolitan Government
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Tokyo Metropolitan Government
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, Tokyo Metropolitan Government filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to GB0329045A priority Critical patent/GB2393872B/en
Publication of GB0116258D0 publication Critical patent/GB0116258D0/en
Publication of GB2362529A publication Critical patent/GB2362529A/en
Application granted granted Critical
Publication of GB2362529B publication Critical patent/GB2362529B/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2233—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in consumption-meter devices, e.g. electricity, gas or water meters
    • 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
    • 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
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • 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
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/108—Combination of a dipole with a plane reflecting surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

Landscapes

  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Examining Or Testing Airtightness (AREA)
GB0116258A 1999-12-03 1999-12-03 Water leakage detector and antenna thereof Expired - Fee Related GB2362529B (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/006789 WO2001040752A1 (en) 1999-12-03 1999-12-03 Water leak detector and antenna thereof

Publications (3)

Publication Number Publication Date
GB0116258D0 GB0116258D0 (en) 2001-08-29
GB2362529A GB2362529A (en) 2001-11-21
GB2362529B true GB2362529B (en) 2004-03-10

Family

ID=14237472

Family Applications (1)

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

Country Status (3)

Country Link
KR (1) KR100431777B1 (en)
GB (1) GB2362529B (en)
WO (1) WO2001040752A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966647B1 (en) * 2010-10-21 2012-11-23 Tdf SLOT AND SURFACE WAVE ANTENNA OF LARGE SIZE
CN110346091B (en) * 2019-07-05 2024-05-31 中国地质大学（武汉） High-pressure semipermeable membrane water seepage monitoring device
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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH095200A (en) * 1995-06-16 1997-01-10 Mitsui Eng & Shipbuild Co Ltd Leaking water detection method and device
GB2310099A (en) * 1996-02-08 1997-08-13 Mecon Limited Radar for vibration detection
GB2323970A (en) * 1997-03-31 1998-10-07 Samsung Electronics Co Ltd A cavity-backed microstrip dipole antenna array
JPH10319117A (en) * 1997-05-21 1998-12-04 Sekisui Chem Co Ltd Antenna for underground probing and underground probing device
JPH11352002A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Antenna for water leakage detector
JPH11352001A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Water leakage detector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH095200A (en) * 1995-06-16 1997-01-10 Mitsui Eng & Shipbuild Co Ltd Leaking water detection method and device
GB2310099A (en) * 1996-02-08 1997-08-13 Mecon Limited Radar for vibration detection
GB2323970A (en) * 1997-03-31 1998-10-07 Samsung Electronics Co Ltd A cavity-backed microstrip dipole antenna array
JPH10319117A (en) * 1997-05-21 1998-12-04 Sekisui Chem Co Ltd Antenna for underground probing and underground probing device
JPH11352002A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Antenna for water leakage detector
JPH11352001A (en) * 1998-06-04 1999-12-24 Mitsui Eng & Shipbuild Co Ltd Water leakage detector

Also Published As

Publication number Publication date
GB0116258D0 (en) 2001-08-29
KR100431777B1 (en) 2004-05-17
KR20010108171A (en) 2001-12-07
WO2001040752A1 (en) 2001-06-07
GB2362529A (en) 2001-11-21

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Legal Events

Date Code Title Description
789A Request for publication of translation (sect. 89(a)/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051203