IT1099116B - Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore - Google Patents

Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore

Info

Publication number: IT1099116B
Authority: IT; Italy
Prior art keywords: defects; round; electrically conductive; current detection; external surface
Prior art date: 1977-09-22

Application number

IT27836/78A

Other languages

English (en)

Other versions

IT7827836A0 (it

Original Assignee

Nippon Kokan Kk

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.)

1977-09-22

Filing date

1978-09-19

Publication date

1985-09-18

1977-09-22 Priority claimed from JP11320177A external-priority patent/JPS5447694A/ja

1977-09-22 Priority claimed from JP11320277A external-priority patent/JPS5913701B2/ja

1977-09-22 Priority claimed from JP11320077A external-priority patent/JPS5447697A/ja

1978-09-19 Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk

1978-09-19 Publication of IT7827836A0 publication Critical patent/IT7827836A0/it

1985-09-18 Application granted granted Critical

1985-09-18 Publication of IT1099116B publication Critical patent/IT1099116B/it

Links

238000001514 detection method Methods 0.000 title 1

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9013—Arrangements for scanning
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Physics & Mathematics (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

IT27836/78A 1977-09-22 1978-09-19 Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore IT1099116B (it)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP11320177A JPS5447694A (en)	1977-09-22	1977-09-22	Surface flaw sensor block with marking means
JP11320277A JPS5913701B2 (ja)	1977-09-22	1977-09-22	断面外形が円形状の被検査材の外表面走査用センサブロツク
JP11320077A JPS5447697A (en)	1977-09-22	1977-09-22	Method of detecting flaw by eddy current

Publications (2)

Publication Number	Publication Date
IT7827836A0 IT7827836A0 (it)	1978-09-19
IT1099116B true IT1099116B (it)	1985-09-18

Family

ID=27312454

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT27836/78A IT1099116B (it)	1977-09-22	1978-09-19	Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore

Country Status (4)

Country	Link
US (1)	US4247819A (it)
DE (1)	DE2841165C3 (it)
GB (1)	GB2007366B (it)
IT (1)	IT1099116B (it)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4442403A (en) *	1981-04-01	1984-04-10	Pohler Carl Ludwig	Testing installation for pipes having an internal testing unit driven by the rotation of the pipe
US4495587A (en) *	1981-12-08	1985-01-22	Bethlehem Steel Corporation	Automatic nondestructive roll defect inspection system
DE3209006C2 (de) *	1982-03-12	1985-11-21	Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen	Prüfeinrichtung für langgestrecktes Prüfgut
US4543528A (en) *	1982-09-30	1985-09-24	Republic Steel Corporation	Flexible probe assembly for use in nondestructive testing of a convex workpiece surface
US4864239A (en) *	1983-12-05	1989-09-05	General Electric Company	Cylindrical bearing inspection
US4629991A (en) *	1984-04-11	1986-12-16	Pa Incorporated	Methods and apparatus for detecting tubular defects having a plurality of expandable arcuate segments
US4792756A (en) *	1984-04-11	1988-12-20	Pa Incorporated	Method and apparatus for measuring axially extending defects in ferromagnetic elements
US4636727A (en) *	1984-04-11	1987-01-13	Pa Incorporated	Method and apparatus for detecting the location of defects in tubular sections moving past a well head
US4715442A (en) *	1984-04-11	1987-12-29	Pa Incorporated	Apparatus for servicing tubular strings in subterranean wells
US4492115A (en) *	1984-04-11	1985-01-08	Pa Incorporated	Method and apparatus for measuring defects in ferromagnetic tubing
US4704580A (en) *	1984-04-11	1987-11-03	Pa Incorporated	Method and apparatus for measuring the depth of local defects in ferromagnetic elements
US4710712A (en) *	1984-04-11	1987-12-01	Pa Incorporated	Method and apparatus for measuring defects in ferromagnetic elements
EP0228177A3 (en) *	1985-11-19	1988-11-02	Electric Power Research Institute, Inc	Flexible eddy-current coil and coil array for nondestructive testing
US5027662A (en) *	1987-07-15	1991-07-02	Micro Motion, Inc.	Accuracy mass flow meter with asymmetry and viscous damping compensation
FR2626372B3 (fr) *	1988-01-25	1990-01-19	Unimetall Sa	Dispositif de detection par courants de foucault des defauts superficiels de produits longs a section circulaire
EP0518635B1 (en) *	1991-06-11	2003-05-21	Newt Holdings Limited	Probe
GB2292223B (en) *	1991-12-20	1996-06-26	Millstrong Ltd	Position measurement
US7526964B2 (en) *	2002-01-25	2009-05-05	Jentek Sensors, Inc.	Applied and residual stress measurements using magnetic field sensors
US6909988B2 (en) *	2002-10-15	2005-06-21	General Electric Company	Method for positioning defects in metal billets
US20050007106A1 (en) *	2003-05-23	2005-01-13	Jentek Sensors, Inc.	Hybrid wound/etched winding constructs for scanning and monitoring
US20040257072A1 (en) *	2003-06-19	2004-12-23	Rock Samson	Dual-sensitivity eddy current test probe
EP1638754A1 (en) *	2003-06-20	2006-03-29	BATTENFELD GLOUCESTER ENGINEERING Co., Inc.	Process for reducing surface aberrations
US7528598B2 (en) *	2005-06-22	2009-05-05	Jentek Sensors, Inc.	Fastener and fitting based sensing methods
EP1952135A4 (en) *	2005-11-03	2011-12-14	Coastal Res Corp	CONVIVIAL FOUCAULT CURRENT NETWORK
DE102008024394A1 (de) *	2008-05-15	2009-12-03	V&M Deutschland Gmbh	Verfahren zur zerstörungsfreien Prüfung von Rohren
JP5791279B2 (ja) *	2011-01-06	2015-10-07	三菱重工業株式会社	付着物計測装置及び付着物計測方法並びに付着物計測プログラム
CN105806935B (zh) *	2016-05-27	2024-03-12	三峡大学	一种大型金属圆管道焊缝缺陷快速检测装置
JP7269838B2 (ja)	2019-09-02	2023-05-09	株式会社日立製作所	応力分布計測装置および応力分布計測方法
CN113256624A (zh) *	2021-06-29	2021-08-13	中移(上海)信息通信科技有限公司	连铸圆坯缺陷检测方法、装置、电子设备及可读存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2353211A (en) *	1940-05-13	1944-07-11	Magnetic Analysis Corp	Electrical analysis
US3271662A (en) *	1962-08-22	1966-09-06	Api Instr Company	Flaw detecting apparatus having multiple pick-up and exciting coils on the same side of the test piece
US3244972A (en) *	1964-03-25	1966-04-05	United States Steel Corp	Test-coil positioning mechanism

1978
- 1978-09-19 GB GB7837395A patent/GB2007366B/en not_active Expired
- 1978-09-19 IT IT27836/78A patent/IT1099116B/it active
- 1978-09-19 US US05/943,865 patent/US4247819A/en not_active Expired - Lifetime
- 1978-09-21 DE DE2841165A patent/DE2841165C3/de not_active Expired

Also Published As

Publication number	Publication date
GB2007366B (en)	1982-03-24
DE2841165C3 (de)	1980-12-11
DE2841165A1 (de)	1979-03-29
DE2841165B2 (de)	1980-04-10
GB2007366A (en)	1979-05-16
IT7827836A0 (it)	1978-09-19
US4247819A (en)	1981-01-27

Publication	Publication Date	Title
IT1099116B (it)	1985-09-18	Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore
GB2106757B (en)	1985-07-10	Electrical surveillance apparatus with movable antenna elements
GB1552948A (en)	1979-09-19	Measuring the electrical conductivity of a lamella
EP0061615A3 (en)	1983-09-14	Electrical contact probe assembly with rotatable contacting elements
NZ185830A (en)	1980-05-08	Polyfluoroallyloxy compounds:polymers and electrically conductive membranes
BR7700675A (pt)	1977-10-11	Disposicao de material para contatos eletricos de corrente fraca
JPS5333334A (en)	1978-03-29	Conductive diluent material for press shaped nickel electrode
IT7820449A0 (it)	1978-02-21	Materiale sinterizzato impregnato per elementi di contatto elettrico e procedimento per la suaproduzione.
IT7851080A0 (it)	1978-09-14	Contatto elettrico e metodo per realizzare il medesimo
EP0035225A3 (en)	1981-10-14	Proximity switch with matching monitoring devices
JPS5351128A (en)	1978-05-10	Electric contact materials
NO814101L (no)	1982-07-26	Material for elektriske kontakter
GB2087308B (en)	1984-08-01	Electrically conductive structural materials
GB2000641A (en)	1979-01-10	Electrically conductive material
JPS549765A (en)	1979-01-24	Electric contact material
JPS5431026A (en)	1979-03-07	Electric contact material
JPS5392308A (en)	1978-08-14	Electric contact material
JPS52148156A (en)	1977-12-09	Electrical signal monitoring apparatus
JPS52145436A (en)	1977-12-03	Electrically conductive paint for electrode
JPS52107036A (en)	1977-09-08	Electrically conductive paint
DD131806A1 (de)	1978-07-19	Elektrisch leitender gummielastischer verbundwerkstoff
GB2044543B (en)	1983-03-09	Electrically conductive bodies
JPS53102825A (en)	1978-09-07	Electric contact material
JPS542921A (en)	1979-01-10	Electric contact material
JPS5428220A (en)	1979-03-02	Electric contact material