JPS6425025A - Detecting apparatus of leakage of water - Google Patents

Detecting apparatus of leakage of water

Info

Publication number
JPS6425025A
JPS6425025A JP62180939A JP18093987A JPS6425025A JP S6425025 A JPS6425025 A JP S6425025A JP 62180939 A JP62180939 A JP 62180939A JP 18093987 A JP18093987 A JP 18093987A JP S6425025 A JPS6425025 A JP S6425025A
Authority
JP
Japan
Prior art keywords
time integration
time
water
minimum value
value
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.)
Granted
Application number
JP62180939A
Other languages
English (en)
Other versions
JPH052934B2 (ja
Inventor
Tadashi Saito
Shozo Taniguchi
Akio Enomoto
Teruyoshi Matsuzawa
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.)
Toshiba Corp
Tokyo Metropolitan Government
Original Assignee
Toshiba Corp
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 Toshiba Corp, Tokyo Metropolitan Government filed Critical Toshiba Corp
Priority to JP62180939A priority Critical patent/JPS6425025A/ja
Priority to EP88111705A priority patent/EP0300460B1/en
Priority to DE8888111705T priority patent/DE3871006D1/de
Priority to KR8809193A priority patent/KR920002018B1/ko
Publication of JPS6425025A publication Critical patent/JPS6425025A/ja
Priority to US07/472,434 priority patent/US4958296A/en
Publication of JPH052934B2 publication Critical patent/JPH052934B2/ja
Granted 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
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP62180939A 1987-07-22 1987-07-22 Detecting apparatus of leakage of water Granted JPS6425025A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62180939A JPS6425025A (en) 1987-07-22 1987-07-22 Detecting apparatus of leakage of water
EP88111705A EP0300460B1 (en) 1987-07-22 1988-07-20 Apparatus for detecting presence/absence of water leakage from water pipe
DE8888111705T DE3871006D1 (de) 1987-07-22 1988-07-20 Apparat zum nachweisen der an- oder abwesenheit von wasserleck an wasserrohrleitungen.
KR8809193A KR920002018B1 (en) 1987-07-22 1988-07-22 Water-leakage detecting apparatus and method which are little influenced by noise
US07/472,434 US4958296A (en) 1987-07-22 1990-01-31 Water-leakage detecting apparatus and method which are little influenced by noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62180939A JPS6425025A (en) 1987-07-22 1987-07-22 Detecting apparatus of leakage of water

Publications (2)

Publication Number Publication Date
JPS6425025A true JPS6425025A (en) 1989-01-27
JPH052934B2 JPH052934B2 (ja) 1993-01-13

Family

ID=16091919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62180939A Granted JPS6425025A (en) 1987-07-22 1987-07-22 Detecting apparatus of leakage of water

Country Status (2)

Country Link
US (1) US4958296A (ja)
JP (1) JPS6425025A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014074611A (ja) * 2012-10-03 2014-04-24 Nec Corp 上水道管の振動検知装置及び上水道管の振動検知方法
JP2016142621A (ja) * 2015-02-02 2016-08-08 株式会社東芝 漏水検出装置
JP2016142619A (ja) * 2015-02-02 2016-08-08 株式会社東芝 漏水判定のための波形データ収集装置、漏水判定装置、漏水判定システム、およびプログラム
JP2017187338A (ja) * 2016-04-04 2017-10-12 積水化学工業株式会社 管路の異常検知方法および管路の異常監視方法

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272646A (en) * 1991-04-11 1993-12-21 Farmer Edward J Method for locating leaks in a fluid pipeline and apparatus therefore
US5341670A (en) * 1991-12-13 1994-08-30 Atlantic Richfield Company Method and apparatus for locating seepage from tanks
US5228329A (en) * 1991-12-27 1993-07-20 Conservation Devices, Inc. Leak detector for fluid distribution systems serving intermittent loads
US5361636A (en) * 1992-09-23 1994-11-08 Columbia Gas Of Ohio, Inc. Apparatus and process for measuring the magnitude of leaks
US5576480A (en) * 1992-11-06 1996-11-19 Pall Corporation System and method for testing the integrity of porous elements
US5372032A (en) * 1993-04-23 1994-12-13 Filippi; Ernest A. Pressurized piping line leak detector
EP0750737A1 (en) * 1994-03-15 1997-01-02 Energy And Environmental Technologies Corp. Apparatus and method for detecting ultrasonic waves propagated from within a selected distance
US5526679A (en) * 1995-01-05 1996-06-18 Campo/Miller Automatically calibrated pressurized piping leak detector
US5974862A (en) * 1997-05-06 1999-11-02 Flow Metrix, Inc. Method for detecting leaks in pipelines
GB2361319B (en) * 1998-03-05 2002-01-16 Palmer Environmental Ltd Detecting leaks in pipes
US6567006B1 (en) 1999-11-19 2003-05-20 Flow Metrix, Inc. Monitoring vibrations in a pipeline network
SE518005C2 (sv) * 2001-03-26 2002-08-13 Tigerholm Innovation Ab Anordning och förfarande för indikering av gas/luft i ett vätskesystem
US6957157B2 (en) 2002-11-12 2005-10-18 Flow Metrix, Inc. Tracking vibrations in a pipeline network
US7891246B2 (en) * 2002-11-12 2011-02-22 Itron, Inc. Tracking vibrations in a pipeline network
US8665101B2 (en) * 2009-11-16 2014-03-04 Aquarius Spectrum Ltd. System method and device for leak detection and localization in a pipe network
US9568390B2 (en) 2013-06-27 2017-02-14 Dresser, Inc. System and method for filtering noise from acoustic energy from a valve
US10948132B2 (en) 2017-05-08 2021-03-16 64Seconds, Inc. Integrity assessment of a pipeline network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209117A (ja) * 1984-03-31 1985-10-21 Toshiba Corp 漏水検出装置付量水器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019650A (en) * 1957-04-01 1962-02-06 Bailey Meters Controls Ltd Apparatus for detecting the presence or absence at a location of a body of liquid
JPS61213647A (ja) * 1985-03-19 1986-09-22 Toshiba Corp 漏水検出装置
JPS61223628A (ja) * 1985-03-29 1986-10-04 Toshiba Corp 漏水検知装置
JPS6255539A (ja) * 1985-09-05 1987-03-11 Toshiba Corp 漏水検出装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209117A (ja) * 1984-03-31 1985-10-21 Toshiba Corp 漏水検出装置付量水器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014074611A (ja) * 2012-10-03 2014-04-24 Nec Corp 上水道管の振動検知装置及び上水道管の振動検知方法
JP2016142621A (ja) * 2015-02-02 2016-08-08 株式会社東芝 漏水検出装置
JP2016142619A (ja) * 2015-02-02 2016-08-08 株式会社東芝 漏水判定のための波形データ収集装置、漏水判定装置、漏水判定システム、およびプログラム
JP2017187338A (ja) * 2016-04-04 2017-10-12 積水化学工業株式会社 管路の異常検知方法および管路の異常監視方法

Also Published As

Publication number Publication date
US4958296A (en) 1990-09-18
JPH052934B2 (ja) 1993-01-13

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