ZA84979B - Magnetic inspection device - Google Patents

Magnetic inspection device

Info

Publication number
ZA84979B
ZA84979B ZA84979A ZA84979A ZA84979B ZA 84979 B ZA84979 B ZA 84979B ZA 84979 A ZA84979 A ZA 84979A ZA 84979 A ZA84979 A ZA 84979A ZA 84979 B ZA84979 B ZA 84979B
Authority
ZA
South Africa
Prior art keywords
cable
flux
section
magnetic
saturated
Prior art date
Application number
ZA84979A
Other languages
English (en)
Inventor
Herbert R Weischedel
Original Assignee
Ndt Technologies Inc
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 Ndt Technologies Inc filed Critical Ndt Technologies Inc
Publication of ZA84979B publication Critical patent/ZA84979B/xx

Links

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

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)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
ZA84979A 1983-03-31 1984-02-09 Magnetic inspection device ZA84979B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/480,883 US4659991A (en) 1983-03-31 1983-03-31 Method and apparatus for magnetically inspecting elongated objects for structural defects

Publications (1)

Publication Number Publication Date
ZA84979B true ZA84979B (en) 1984-09-26

Family

ID=23909738

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA84979A ZA84979B (en) 1983-03-31 1984-02-09 Magnetic inspection device

Country Status (7)

Country Link
US (1) US4659991A (de)
EP (1) EP0121084B1 (de)
AT (1) ATE39768T1 (de)
AU (1) AU557516B2 (de)
CA (1) CA1244087A (de)
DE (1) DE3475963D1 (de)
ZA (1) ZA84979B (de)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA871964B (de) * 1986-03-25 1987-09-07
EP0286712A3 (de) * 1987-04-16 1990-03-14 Westfälische Berggewerkschaftskasse Gerät zur Prüfung von ferromagnetischen Stahldrahtseilen, insbesondere von Förderseilen des Untertagebetriebes
GB8714877D0 (en) * 1987-06-25 1987-07-29 Coal Industry Patents Ltd Non-destructive testing device
US5036277A (en) * 1987-11-23 1991-07-30 Crucible Societe Anonyme Method of and apparatus for detecting cross sectional area variations in an elongate object by the non-inductive measurement of radial flux variations
US4929897A (en) * 1987-11-23 1990-05-29 Crucible Societe Anonyme Method and apparatus for detecting cross sectional area variations in a elongate object by measuring radial magnetic flux variations using spaced-apart coils
DE3904612A1 (de) * 1988-09-24 1990-03-29 Westfaelische Berggewerkschaft Pruefverfahren und pruefgeraet fuer stahlseilarmierte foerdergute, insbesondere des untertagebetriebes
CA2054797A1 (en) * 1990-11-07 1992-05-08 Nicolaas T. Van Der Walt Electro-magnetic testing of wire ropes
US5402066A (en) * 1992-03-24 1995-03-28 Commercial Technologies, Inc. Method and apparatus for magnetically testing elongate objects using two circumferentially disposed arrays of magnets and two circumferentially disposed arrays of sensors
US5321356A (en) * 1992-05-26 1994-06-14 Ndt Technologies, Inc. Magnetic inspection device for elongated objects and inspection method
US5245279A (en) * 1992-06-18 1993-09-14 Niagara Mohawk Power Corporation Apparatus and method including flux injector pole position sensors for detecting physical flaws in ferromagnetic objects
US5453686A (en) 1993-04-08 1995-09-26 Polhemus Incorporated Pulsed-DC position and orientation measurement system
US5414353A (en) * 1993-05-14 1995-05-09 Ndt Technologies, Inc. Method and device for nondestructively inspecting elongated objects for structural defects using longitudinally arranged magnet means and sensor means disposed immediately downstream therefrom
US5565771A (en) * 1995-01-18 1996-10-15 Noranda, Inc. Apparatus for increasing linear resolution of electromagnetic wire rope testing
US5751144A (en) * 1996-07-23 1998-05-12 Ndt Technologies, Incorporated Method and device including primary and auxiliary magnetic poles for nondestructive detection of structural faults
US5828213A (en) * 1996-10-21 1998-10-27 Hickman; Jack R. Method and apparatus for magnetically sampling the uniformity of an elongate object
US6633159B1 (en) 1999-03-29 2003-10-14 Otis Elevator Company Method and apparatus for magnetic detection of degradation of jacketed elevator rope
US6265870B1 (en) 1999-09-02 2001-07-24 Ndt Technologies, Inc. Eddy current sensor assembly for detecting structural faults in magnetically permeable objects
US6492808B1 (en) * 2000-06-29 2002-12-10 Intron Plus, Ltd. Magnetic non-destructive method and apparatus for measurement of cross sectional area and detection of local flaws in elongated ferrous objects in response to longitudinally spaced sensors in an inter-pole area
USRE40166E1 (en) * 1999-12-17 2008-03-25 Intron Plus, Ltd. Magnetic non-destructive method and apparatus for measurement of cross sectional area and detection of local flaws in elongated ferrous objects in response to longitudinally spaced sensors in an inter-pole area
US6810743B2 (en) 2001-08-01 2004-11-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Adminstration Non-destructive evaluation of wire insulation and coatings
KR20030091133A (ko) * 2002-05-24 2003-12-03 엘지전자 주식회사 자기 비파괴 검사 장치
DE10352325B4 (de) * 2003-11-06 2013-11-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen einer elektrisch leitenden Verbindung u. Kontaktteil mit einer derart hergestellten elektrischen Verbindung
KR100630005B1 (ko) * 2004-05-18 2006-09-27 엘지전자 주식회사 비파괴 검사 장치 및 검사 방법
FR2871572B1 (fr) * 2004-06-15 2006-10-20 Georges Christophe Dispositif de controle de cable matallique porteur-tracteur de telesieges ou teleskis
US7214941B2 (en) * 2004-12-16 2007-05-08 The Gillette Company Crack detection in razor blades
US7403000B2 (en) * 2005-03-11 2008-07-22 Baker Hughes Incorporated Apparatus and method of determining casing thickness and permeability
KR101169509B1 (ko) * 2007-01-31 2012-07-27 미쓰비시덴키 가부시키가이샤 와이어 로프 탐상 장치
KR101496654B1 (ko) 2007-06-27 2015-02-27 브룩스 오토메이션 인코퍼레이티드 리프트 능력 및 감소된 코깅 특성들을 가지는 전동기 고정자
US8129984B2 (en) 2007-06-27 2012-03-06 Brooks Automation, Inc. Multiple dimension position sensor
US8283813B2 (en) 2007-06-27 2012-10-09 Brooks Automation, Inc. Robot drive with magnetic spindle bearings
US8823294B2 (en) 2007-06-27 2014-09-02 Brooks Automation, Inc. Commutation of an electromagnetic propulsion and guidance system
WO2009003193A1 (en) * 2007-06-27 2008-12-31 Brooks Automation, Inc. Position feedback for self bearing motor
US9752615B2 (en) 2007-06-27 2017-09-05 Brooks Automation, Inc. Reduced-complexity self-bearing brushless DC motor
TWI491168B (zh) * 2007-06-27 2015-07-01 Brooks Automation Inc 自軸承電動機的位置回饋
JP2011514652A (ja) 2007-07-17 2011-05-06 ブルックス オートメーション インコーポレイテッド チャンバ壁に一体化されたモータを伴う基板処理装置
CN101978261B (zh) * 2008-04-14 2012-06-13 三菱电机株式会社 钢缆探伤装置
JP5035729B2 (ja) * 2008-04-28 2012-09-26 国立大学法人京都大学 張力測定装置
US8368395B2 (en) * 2008-12-17 2013-02-05 Ndt Technologies, Inc. Magnetic inspection device and method for detecting loss in metallic cross section
US20100171493A1 (en) * 2009-01-07 2010-07-08 Robert Standen Method and device for measuring thickness of a substrate
WO2010117363A1 (en) 2009-04-09 2010-10-14 Michelin Recherche Et Technique, S.A. Tire metallic cable anomaly detection method and apparatus
RU2452943C1 (ru) * 2010-10-13 2012-06-10 Государственное образовательное учреждение высшего профессионального образования "Иркутский государственный университет путей сообщения" (ИрГУПС (ИрИИТ) Способ обнаружения изгибных напряжений
RU2455634C1 (ru) * 2010-11-10 2012-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Иркутский государственный университет путей сообщения" (ФГБОУ ВПО ИрГУПС) Способ оценки запаса прочности изделий в процессе эксплуатации
USH2278H1 (en) * 2011-03-02 2013-07-02 The United States Of America, As Represented By The Secretary Of The Navy Onboard data recorder for a nondestructive test wire rope sensor head
RU2469307C1 (ru) * 2011-07-21 2012-12-10 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Способ определения локальных дефектов ферромагнитных канатов двойной свивки
US9103798B2 (en) * 2011-12-07 2015-08-11 Ndt Technologies, Inc. Magnetic inspection device and method
CA2885498C (en) 2012-10-04 2017-03-28 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Canada Measurement of lay length of wire rope
JP6176102B2 (ja) * 2013-12-18 2017-08-09 中国電力株式会社 電線の劣化判定方法、電線の劣化判定装置
US10060881B2 (en) * 2014-04-16 2018-08-28 Texas Instruments Incorporated Surface sensing method for corrosion sensing via magnetic modulation
CN104458895A (zh) * 2014-12-08 2015-03-25 清华大学 管道三维漏磁成像检测方法及系统
JP6579840B2 (ja) * 2015-07-16 2019-09-25 住友化学株式会社 欠陥測定方法、欠陥測定装置、および検査プローブ
US10465509B2 (en) 2016-10-12 2019-11-05 Baker Hughes, A Ge Company, Llc Collocated multitone acoustic beam and electromagnetic flux leakage evaluation downhole
WO2018138850A1 (ja) * 2017-01-26 2018-08-02 株式会社島津製作所 磁性体の検査装置および磁性体の検査方法
WO2018213823A2 (en) 2017-05-19 2018-11-22 Infrastructure Preservation Corporation Robotic magnetic flux leakage inspection system for external post-tensioned tendons of segmental bridges and roadways
JP6805986B2 (ja) * 2017-07-10 2020-12-23 株式会社島津製作所 磁性体の検査装置
US11796506B2 (en) 2019-02-08 2023-10-24 Ipc Tfic, Llc Robotic magnetic flux leakage inspection system for cable stays and related methods
DE102019004240B4 (de) * 2019-06-18 2024-04-25 Mike Pfennig Gerät zur Prüfung von Stahldrahtseilen und Verfahren zu dessen Anwendung
CN111579637B (zh) * 2020-06-11 2022-04-29 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) 一种检测及区分钢丝绳内外缺陷的无损检测方法和装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245568A (en) * 1939-01-11 1941-06-17 Robert H Canfield Method of and apparatus for examining ferromagnetic articles
GB913780A (en) * 1960-08-26 1962-12-28 Ti Group Services Ltd Method of obtaining an electrical signal proportional to the cross-sectional area of a magnetic tube or rod
US3271664A (en) * 1961-12-04 1966-09-06 Magnaflux Corp Combined leakage field and eddy current detection system
GB1056765A (en) * 1962-09-15 1967-01-25 Akademia Gorniczo Hutnicza Dzi A magnetic crack detection device for examining elongated objects such as ropes, rodsand steel pipes
AT245290B (de) * 1962-09-15 1966-02-25 Akademia Gorniczo Hutnicza Dzi Magnetisches Defektoskop zur Prüfung von Stahlseilen, Stahlstäben und Stahlröhren
US3504276A (en) * 1967-04-19 1970-03-31 American Mach & Foundry Printed circuit coils for use in magnetic flux leakage flow detection
US3535624A (en) * 1967-06-13 1970-10-20 American Mach & Foundry Apparatus for inspecting the inside and outside of a tubular member continuously moving in one direction
US3739261A (en) * 1971-06-28 1973-06-12 Atomic Energy Commission Method for measuring the amount of cold working in a stainless steel sample
GB1427703A (en) * 1971-11-26 1976-03-10 British Steel Corp Magnetic testing apparatus
CA1038037A (en) * 1976-05-06 1978-09-05 Noranda Mines Limited Magnetic testing device for detecting defects in elongated objects
GB2012966A (en) * 1977-10-06 1979-08-01 Health & Safety Executive Apparatus for non-destructive testing of elongate objects
AU531499B2 (en) * 1978-09-08 1983-08-25 Orb Electrical Steels Limited An isotropic magnetising system
JPS5571943A (en) * 1978-11-27 1980-05-30 Hitachi Ltd Magnetic flaw detector for rope
DE2932250A1 (de) * 1979-08-09 1981-02-19 Prueftechnik Kg Dieter Busch & Pruefspulenanordnung zum feststellen von fehlern in einem pruefling mittels wirbelstrom
JPS5644840A (en) * 1979-09-21 1981-04-24 Hitachi Ltd Magnetic defect detecting device for rope
JPS56148052A (en) * 1980-04-21 1981-11-17 Hitachi Elevator Eng & Serv Co Ltd Electromagnetic flaw detector for continuous magnetic material
US4388593A (en) * 1980-11-13 1983-06-14 The United States Of America As Represented By The Secretary Of The Navy Coil device for underwater magnetic testing
US4495465A (en) * 1982-05-03 1985-01-22 Rotesco Inc. Method and apparatus for non-destructive testing of magnetically permeable bodies using a first flux to saturate the body and a second flux opposing the first flux to produce a measurable flux
US4546316A (en) * 1982-07-02 1985-10-08 Rotesco Limited Magnetic testing device for supported objects
JPS63755A (ja) * 1986-06-20 1988-01-05 Fujitsu Ltd 半導体記憶装置
JPS63757A (ja) * 1986-06-20 1988-01-05 Fujitsu Ltd 端末制御表検索処理方式

Also Published As

Publication number Publication date
US4659991A (en) 1987-04-21
AU557516B2 (en) 1986-12-24
DE3475963D1 (en) 1989-02-09
EP0121084B1 (de) 1989-01-04
ATE39768T1 (de) 1989-01-15
AU2442284A (en) 1984-10-04
CA1244087A (en) 1988-11-01
EP0121084A3 (en) 1985-06-26
EP0121084A2 (de) 1984-10-10

Similar Documents

Publication Publication Date Title
DE3475963D1 (en) Magnetic inspection device
US4427940A (en) Electromagnetic inspecting apparatus for magnetizable wire rope
CN101650403B (zh) 交流高压输电线路污秽绝缘子泄漏电流传感器
DE3327762C2 (de) Vorrichtung und Verfahren zum Messen der Wanddicke eines ferromagnetischen Elementes
WO2010077840A3 (en) Magnetic inspection device
CA2122516A1 (en) Method and device for nondestructively, magnetically inspecting elongated objects for structural faults
US4218651A (en) Apparatus for detecting longitudinal and transverse imperfections in elongated ferrous workpieces
NO955207L (no) Fremgangsmåte for å påvise sprekker i en elektrisk ledende gjenstand
GB2245072B (en) Eddy current probe,incorporating multi-bracelets of different pancake coil diameters,for detecting internal defects in ferromagnetic tubes
ATE322670T1 (de) Messung von spannungen in einem ferromagnetischen material
JPS59650A (ja) ワイヤ−ロ−プの電磁探傷装置
FR2314496A1 (fr) Sonde magnetique a bobines multiples pour le controle non destructif de tubes
DE69518058D1 (de) Gerät für Induktionsmessungen durch metallische magnetische Wände
GB2152218A (en) Device for magnetic inspection of the belts of belt conveyors
GB2100440A (en) Magnetic flaw detector for steel wire ropes
JP3056136B2 (ja) 線状体の腐食度測定装置および方法
CN104792859A (zh) 一种适用于线型缺陷的磁轭式局部微磁化检测装置
JPS55129747A (en) Damage detection and measuring method for terminal part of steel wire
EP0135204A3 (de) Messvorrichtung für Fehlstellen auf der Oberfläche oder nahe der Oberfläche von metallischen Gegenständen, deren Temperatur höher ist als die Curie-Temperatur
CN108918653B (zh) 铁磁性细长构件无损检测装置与方法
JPS62126345A (ja) 渦流探傷用プロ−ブ
KR840002360B1 (ko) 긴 자성체의 전자 손상 검출 장치
JPH08278289A (ja) 強磁性管の探傷装置および探傷方法
JPS55138602A (en) Detection of wire rope position
SU1532806A1 (ru) Устройство дл контрол сечени стальных канатов