NO138348C - PROCEDURE FOR DETECTING LEAKS OR THIN POINTS IN A SEVERAL PIPES, AND DEVICE FOR CARRYING OUT THE PROCEDURE - Google Patents

PROCEDURE FOR DETECTING LEAKS OR THIN POINTS IN A SEVERAL PIPES, AND DEVICE FOR CARRYING OUT THE PROCEDURE

Info

Publication number: NO138348C
Authority: NO; Norway
Prior art keywords: procedure; carrying; detecting leaks; several pipes; thin points
Prior art date: 1971-08-31

Application number

NO304172A

Other languages

Norwegian (no)

Other versions

NO138348B (en

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.)

1971-08-31

Filing date

1972-08-25

Publication date

1978-08-16

1972-08-25 Application filed by George A Harris filed Critical George A Harris

1978-05-08 Publication of NO138348B publication Critical patent/NO138348B/en

1978-08-16 Publication of NO138348C publication Critical patent/NO138348C/en

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating 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
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
- 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
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/102—Number of transducers one emitter, one receiver
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/105—Number of transducers two or more emitters, two or more receivers
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/263—Surfaces
- G01N2291/2634—Surfaces cylindrical from outside
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2693—Rotor 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 PROCEDURE FOR DETECTING LEAKS OR THIN POINTS IN A SEVERAL PIPES, AND DEVICE FOR CARRYING OUT THE PROCEDURE NO138348C (en)

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 (en)	1978-05-08
NO138348C true NO138348C (en)	1978-08-16

Family

ID=22644517

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO304172A NO138348C (en)	1971-08-31	1972-08-25	PROCEDURE FOR DETECTING LEAKS OR THIN POINTS IN A SEVERAL PIPES, AND DEVICE FOR CARRYING OUT THE PROCEDURE

Country Status (4)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2442962C2 (en) *	1973-10-19	1986-06-26	Hauni-Werke Körber & Co KG, 2050 Hamburg	Method and device for checking cigarettes or other rod-shaped articles in the tobacco processing industry for defective wrappings
DE2553789C2 (en) *	1975-11-29	1985-08-29	Hochtemperatur-Reaktorbau GmbH, 4600 Dortmund	Device for the detection and localization of leaks in a pipeline through which a hot fluid flows
DE2854238C2 (en) *	1978-12-15	1982-04-08	Bayerische Motoren Werke AG, 8000 München	Method for determining the tightness and sound insulation of seals between components that define a space
US5089997A (en) *	1990-11-02	1992-02-18	Pasar, Inc.	Ultrasonic energy detector with frequency and amplitude indications and background noise reduction
CN114894393B (en) *	2022-03-28	2024-05-03	上海化工研究院有限公司	Portable high-pressure hydrogen leakage ultrasonic detector
CN119224111A (en) *	2024-12-02	2024-12-31	中国特种设备检测研究院	A storage tank electromagnetic and acoustic composite detection device and method

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

1972
- 1972-08-25 NO NO304172A patent/NO138348C/en unknown
- 1972-08-31 DE DE19722242932 patent/DE2242932A1/en active Pending
- 1972-08-31 JP JP8676072A patent/JPS4835206A/ja active Pending
- 1972-08-31 GB GB4043372A patent/GB1402897A/en not_active Expired

Also Published As

Publication number	Publication date
DE2242932A1 (en)	1973-03-15
JPS4835206A (en)	1973-05-24
NO138348B (en)	1978-05-08
GB1402897A (en)	1975-08-13

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