NO780756L - Innretning for inspeksjon av en roerledning med hensyn til lekkasje - Google Patents

Innretning for inspeksjon av en roerledning med hensyn til lekkasje

Info

Publication number
NO780756L
NO780756L NO780756A NO780756A NO780756L NO 780756 L NO780756 L NO 780756L NO 780756 A NO780756 A NO 780756A NO 780756 A NO780756 A NO 780756A NO 780756 L NO780756 L NO 780756L
Authority
NO
Norway
Prior art keywords
amplifier
pipeline
signal
amplification factor
external
Prior art date
Application number
NO780756A
Other languages
English (en)
Norwegian (no)
Inventor
Alfred Van Tilburg
Robert Cornelis Lohman
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of NO780756L publication Critical patent/NO780756L/no

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
    • G01M3/246—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 using pigs or probes travelling in the pipe
    • 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
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
NO780756A 1977-03-08 1978-03-06 Innretning for inspeksjon av en roerledning med hensyn til lekkasje NO780756L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7702461A NL7702461A (nl) 1977-03-08 1977-03-08 Inrichting voor het inspecteren van een pijpleiding op lekken.

Publications (1)

Publication Number Publication Date
NO780756L true NO780756L (no) 1978-09-11

Family

ID=19828128

Family Applications (1)

Application Number Title Priority Date Filing Date
NO780756A NO780756L (no) 1977-03-08 1978-03-06 Innretning for inspeksjon av en roerledning med hensyn til lekkasje

Country Status (10)

Country Link
US (1) US4172379A (it)
JP (1) JPS53110891A (it)
AU (1) AU517268B2 (it)
CA (1) CA1111544A (it)
DE (1) DE2809540A1 (it)
FR (1) FR2383390A1 (it)
GB (1) GB1566853A (it)
IT (1) IT1107825B (it)
NL (1) NL7702461A (it)
NO (1) NO780756L (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678962B2 (ja) * 1981-12-11 1994-10-05 株式会社日立製作所 冷却材漏洩検出装置用健全性確認方法
GB8311474D0 (en) * 1983-04-27 1983-06-02 Dunlop Ltd Leak detectors
US4635042A (en) * 1984-03-21 1987-01-06 Michael Ede Vacuum leak detector
JPS6370139A (ja) * 1986-09-12 1988-03-30 Hitachi Ltd 音圧レベル測定式流体漏えい検出装置
EP0552044B1 (en) * 1992-01-16 1996-10-09 Kabushiki Kaisha Toshiba Method and apparatus for detecting the position of an abnormal site of a buried pipe
WO1995006138A1 (en) * 1993-08-25 1995-03-02 The Regents Of The University Of California Microscopic method for detecting micromotions
WO2003031686A2 (en) * 2001-10-12 2003-04-17 Envirosense, Llc Cathodic protection remote monitoring method and apparatus
US7891246B2 (en) * 2002-11-12 2011-02-22 Itron, Inc. Tracking vibrations in a pipeline network
US6957157B2 (en) 2002-11-12 2005-10-18 Flow Metrix, Inc. Tracking vibrations in a pipeline network
GB2468301B (en) * 2009-03-03 2013-06-12 Jd7 Ltd Water mains inspection and servicing
US9804053B2 (en) * 2012-09-28 2017-10-31 Nec Corporation Defect analysis device, defect analysis method, and program
DE102012109433B4 (de) * 2012-10-04 2018-11-29 Faulhaber GmbH Verfahren zur Druck- und Unterdruckprüfung von Rohrleitungssystemen auf Dichtigkeit
US10577923B2 (en) 2015-03-20 2020-03-03 Halliburton Energy Services, Inc. Leak detection via doppler shift differences in moving hydrophones
US9933327B2 (en) 2015-08-20 2018-04-03 General Electric Company Method for detecting leaks in a fuel circuit of a gas turbine fuel supply system
US10948132B2 (en) 2017-05-08 2021-03-16 64Seconds, Inc. Integrity assessment of a pipeline network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974224A (en) * 1956-08-28 1961-03-07 Gilfillan Bros Inc Apparatus for automatic gain control
NL6609733A (it) * 1966-07-12 1968-01-15
US3409897A (en) * 1966-12-19 1968-11-05 Shell Oil Co Recorder for detecting and locating leaks in pipelines by ultrasonic vibration
US3575040A (en) * 1967-11-06 1971-04-13 Shell Oil Co Apparatus for testing a pipeline for leaks

Also Published As

Publication number Publication date
AU517268B2 (en) 1981-07-16
JPS53110891A (en) 1978-09-27
GB1566853A (en) 1980-05-08
IT7867466A0 (it) 1978-03-06
NL7702461A (nl) 1978-09-12
DE2809540A1 (de) 1978-09-14
FR2383390B1 (it) 1980-06-06
AU3387278A (en) 1979-09-13
IT1107825B (it) 1985-12-02
FR2383390A1 (fr) 1978-10-06
CA1111544A (en) 1981-10-27
US4172379A (en) 1979-10-30

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