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NO138348C - Fremgangsmaate til paavisning av lekkasjer eller tynne punkter i et flertall roer, og anordning til utfoerelse av fremgangsmaaten - Google Patents

Fremgangsmaate til paavisning av lekkasjer eller tynne punkter i et flertall roer, og anordning til utfoerelse av fremgangsmaaten

Info

Publication number
NO138348C
NO138348C NO304172A NO304172A NO138348C NO 138348 C NO138348 C NO 138348C NO 304172 A NO304172 A NO 304172A NO 304172 A NO304172 A NO 304172A NO 138348 C NO138348 C NO 138348C
Authority
NO
Norway
Prior art keywords
procedure
carrying
detecting leaks
several pipes
thin points
Prior art date
Application number
NO304172A
Other languages
English (en)
Other versions
NO138348B (no
Inventor
George A Harris
Original Assignee
George A Harris
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 George A Harris filed Critical George A Harris
Publication of NO138348B publication Critical patent/NO138348B/no
Publication of NO138348C publication Critical patent/NO138348C/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • G01N29/11Analysing solids by measuring attenuation of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24Investigating 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/048Transmission, i.e. analysed material between transmitter and receiver
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/10Number of transducers
    • G01N2291/102Number of transducers one emitter, one receiver
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/10Number of transducers
    • G01N2291/105Number of transducers two or more emitters, two or more receivers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/10Number of transducers
    • G01N2291/106Number of transducers one or more transducer arrays
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/263Surfaces
    • G01N2291/2634Surfaces cylindrical from outside
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/269Various geometry objects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/269Various geometry objects
    • G01N2291/2693Rotor or turbine parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Examining Or Testing Airtightness (AREA)
NO304172A 1971-08-31 1972-08-25 Fremgangsmaate til paavisning av lekkasjer eller tynne punkter i et flertall roer, og anordning til utfoerelse av fremgangsmaaten NO138348C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17647971A 1971-08-31 1971-08-31

Publications (2)

Publication Number Publication Date
NO138348B NO138348B (no) 1978-05-08
NO138348C true NO138348C (no) 1978-08-16

Family

ID=22644517

Family Applications (1)

Application Number Title Priority Date Filing Date
NO304172A NO138348C (no) 1971-08-31 1972-08-25 Fremgangsmaate til paavisning av lekkasjer eller tynne punkter i et flertall roer, og anordning til utfoerelse av fremgangsmaaten

Country Status (4)

Country Link
JP (1) JPS4835206A (no)
DE (1) DE2242932A1 (no)
GB (1) GB1402897A (no)
NO (1) NO138348C (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442962C2 (de) * 1973-10-19 1986-06-26 Hauni-Werke Körber & Co KG, 2050 Hamburg Verfahren und Vorrichtung zum Prüfen von Zigaretten oder anderen stabförmigen Artikeln der tabakverarbeitenden Industrie auf fehlerhafte Umhüllungen
DE2553789C2 (de) * 1975-11-29 1985-08-29 Hochtemperatur-Reaktorbau GmbH, 4600 Dortmund Vorrichtung zum Feststellen und Lokalisieren von Lecks in einer von einem heißen Fluid durchströmten Rohrleitung
DE2854238C2 (de) * 1978-12-15 1982-04-08 Bayerische Motoren Werke AG, 8000 München Verfahren zum Ermitteln der Dichtheit sowie der Schalldämmung von Abdichtungen zwischen einen Raum begrenzenden Bauteilen
US5089997A (en) * 1990-11-02 1992-02-18 Pasar, Inc. Ultrasonic energy detector with frequency and amplitude indications and background noise reduction
CN111103095B (zh) * 2019-12-24 2025-09-23 东方电气(广州)重型机器有限公司 一种用于换热器类多组换热管的检漏装置及使用方法
CN114894393B (zh) * 2022-03-28 2024-05-03 上海化工研究院有限公司 一种便携式高压氢气泄漏超声波检测仪
CN119224111B (zh) * 2024-12-02 2025-03-21 中国特种设备检测研究院 一种储罐电磁声复合检测装置及方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055209A (en) * 1959-11-18 1962-09-25 American Gas Ass Method for locating leaks in underground gas conduits

Also Published As

Publication number Publication date
GB1402897A (en) 1975-08-13
NO138348B (no) 1978-05-08
JPS4835206A (no) 1973-05-24
DE2242932A1 (de) 1973-03-15

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