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 fremgangsmaatenInfo
- 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
Links
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)
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)
| 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)
| 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/no unknown
- 1972-08-31 JP JP8676072A patent/JPS4835206A/ja active Pending
- 1972-08-31 GB GB4043372A patent/GB1402897A/en not_active Expired
- 1972-08-31 DE DE19722242932 patent/DE2242932A1/de active Pending
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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