DE69123797D1 - Magnetischer fehlstellendetektor für dünne stahlbänder - Google Patents

Magnetischer fehlstellendetektor für dünne stahlbänder

Info

Publication number
DE69123797D1
DE69123797D1 DE69123797T DE69123797T DE69123797D1 DE 69123797 D1 DE69123797 D1 DE 69123797D1 DE 69123797 T DE69123797 T DE 69123797T DE 69123797 T DE69123797 T DE 69123797T DE 69123797 D1 DE69123797 D1 DE 69123797D1
Authority
DE
Germany
Prior art keywords
thin steel
defect detector
steel tapes
magnetic defect
magnetic
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69123797T
Other languages
English (en)
Other versions
DE69123797T2 (de
Inventor
Seigo Ando
Masaki Takenaka
Ken-Ichi Iwanaga
Takato Furukawa
Atsunao Takekoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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
Priority claimed from JP2325090U external-priority patent/JPH0750711Y2/ja
Priority claimed from JP18948490A external-priority patent/JPH07109416B2/ja
Priority claimed from JP19787190A external-priority patent/JPH07104329B2/ja
Priority claimed from JP2278918A external-priority patent/JP2617615B2/ja
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Application granted granted Critical
Publication of DE69123797D1 publication Critical patent/DE69123797D1/de
Publication of DE69123797T2 publication Critical patent/DE69123797T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • 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
    • 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)
DE69123797T 1990-02-22 1991-02-22 Magnetischer fehlstellendetektor für dünne stahlbänder Expired - Fee Related DE69123797T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP4184090 1990-02-22
JP2325090U JPH0750711Y2 (ja) 1990-03-09 1990-03-09 薄鋼帯の磁気探傷装置
JP7737990 1990-03-27
JP18948490A JPH07109416B2 (ja) 1990-07-19 1990-07-19 薄鋼帯の磁気探傷装置
JP19787190A JPH07104329B2 (ja) 1990-07-27 1990-07-27 鋼帯の磁気探傷方法及びその装置
JP2278918A JP2617615B2 (ja) 1990-10-19 1990-10-19 磁気測定方法およびその装置
PCT/JP1991/000224 WO1991013347A1 (fr) 1990-02-22 1991-02-22 Detecteur magnetique de defauts pour mince bande en acier

Publications (2)

Publication Number Publication Date
DE69123797D1 true DE69123797D1 (de) 1997-02-06
DE69123797T2 DE69123797T2 (de) 1997-07-03

Family

ID=27549089

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123797T Expired - Fee Related DE69123797T2 (de) 1990-02-22 1991-02-22 Magnetischer fehlstellendetektor für dünne stahlbänder

Country Status (5)

Country Link
US (1) US5235275A (de)
EP (1) EP0469158B1 (de)
KR (1) KR960005364B1 (de)
DE (1) DE69123797T2 (de)
WO (1) WO1991013347A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327083A (en) * 1992-03-19 1994-07-05 Allegheny Ludlum Corporation Method and apparatus using magnetic flux scanning to test grain structure of magnetic sheet material
RU2153234C2 (ru) * 1992-12-09 2000-07-20 Дискавери Коммьюникейшнз, Инк. Устройство для использования в головной станции системы кабельного телевидения (варианты) и способ распределения программ абонентам в системе кабельного телевидения
EP0624793A1 (de) * 1993-05-03 1994-11-17 Tuboscope Vetco (Deutschland) Gmbh Verfahren und Gerät zur Ermittlung von magnetischen Unstetigkeiten in einer Probe aus magnetisierbarem Material
US5808465A (en) * 1994-02-28 1998-09-15 Vamco Machine & Tool, Inc. Electronically controlled high speed press feed
US7131339B2 (en) * 1997-01-27 2006-11-07 Southwest Research Institute Measurement of torsional dynamics of rotating shafts using magnetostrictive sensors
EP1806577A4 (de) * 2004-10-28 2013-05-29 Toyo Kohan Co Ltd Vorrichtung und verfahren zur inspektion von kratzern auf äusserem zellengehäuse
US7489134B2 (en) * 2005-03-10 2009-02-10 Arcady Reiderman Magnetic sensing assembly for measuring time varying magnetic fields of geological formations
CN100432665C (zh) * 2005-08-05 2008-11-12 营口市北方检测设备有限公司 钢制品表层缺陷的双场漏磁通的在线检测装置和检测方法
KR100802723B1 (ko) 2006-11-23 2008-02-12 현대자동차주식회사 벨트의 노이즈 방지 시스템
CN102253115B (zh) * 2011-04-25 2013-10-30 许志浩 钢丝绳芯胶带探伤系统及用其检测的方法
CN106990163A (zh) * 2016-01-20 2017-07-28 宝山钢铁股份有限公司 用于内部缺陷检测的检测电路及系统
EP3764094B1 (de) * 2018-03-08 2023-12-27 Shimadzu Corporation Vorrichtung zur inspektion eines magnetkörpers
CN109541507B (zh) * 2018-12-17 2021-01-08 武汉钢铁有限公司 用于取向硅钢片性能检测的单片磁导计、检测装置及检测方法
CN109500100B (zh) * 2018-12-27 2023-10-27 中冶南方工程技术有限公司 一种用于带钢双面检查的磁力转向辊及检查站
CN114894886B (zh) * 2022-07-15 2022-10-18 国机传感科技有限公司 一种管道检测器用浮动探头
WO2024086323A1 (en) * 2022-10-21 2024-04-25 Fermi Research Alliance, Llc Shielded irradiator vehicle

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938164A (en) * 1957-06-25 1960-05-24 Hansburg Milton Automatic earth field balance control system for magnetometers
DE1931654B2 (de) * 1969-06-21 1971-11-11 Walzenspaltpositionsregelung fuer walzgerueste
GB1311907A (en) * 1970-06-19 1973-03-28 British Steel Corp Apparatus for the magnetic testing of metal strip
GB1378505A (en) * 1971-06-14 1974-12-27 British Iron Steel Research Detection of electrical or magnetic properties of metal strip
US3886445A (en) * 1973-10-17 1975-05-27 Nippon Kokan Kk Method and apparatus for electromagnetic detection of welds in metal strips including pressing means for the strip
DE2620070A1 (de) * 1975-05-08 1976-11-25 British Steel Corp Vorrichtung zur magnetischen pruefung eines metallbandes
US4107606A (en) * 1976-12-14 1978-08-15 Measurex Corporation Non-contacting electromagnetic thickness gauge for sheet measurement having improved small distance sensitivity
US4305035A (en) * 1979-08-22 1981-12-08 Rockwell International Corporation Magnetic field amplitude detection sensor apparatus
JPS57108656A (en) * 1980-12-26 1982-07-06 Kawasaki Steel Corp Detecting method of internal defect in thin steel plate
US4518919A (en) * 1981-01-16 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Detecting device for detecting a magnetic strip embedded in a sheet
EP0098115A1 (de) * 1982-06-28 1984-01-11 De La Rue Systems Limited Vorrichtung zur Ermittlung der Beschaffenheit eines Blattes oder eines Gewebes
US4767987A (en) * 1983-12-12 1988-08-30 Harris Graphics Corporation Method and apparatus for monitoring film thicknesses by sensing magnetic interaction between members movable to a film thickness distance
JPS61147158A (ja) * 1984-12-21 1986-07-04 Nippon Steel Corp ストリツプの欠陥検出装置
JPS61170068A (ja) * 1985-01-23 1986-07-31 Nec Ic Microcomput Syst Ltd Ｍｏｓトランジスタ
JPS61170067A (ja) * 1985-01-23 1986-07-31 Nec Corp 半導体装置
JPS61170068U (de) * 1985-04-10 1986-10-22
JPH06101713B2 (ja) * 1985-11-11 1994-12-12 日本電気株式会社 時分割多方向多重通信方式
JPS6396547A (ja) * 1986-10-14 1988-04-27 Nippon Steel Corp 帯状金属板の欠陥検出装置
JPS63107849A (ja) * 1986-10-27 1988-05-12 松下電工株式会社 無機質硬化体の製造方法
JPS63107849U (de) * 1986-12-29 1988-07-12
JP2617570B2 (ja) * 1989-04-28 1997-06-04 日本鋼管株式会社 磁気測定装置
US5089776A (en) * 1989-09-25 1992-02-18 Nkk Corporation Apparatus for detecting defects in a moving steel strip with a magnetizing yoke and a sensor placed on opposite sides of the strip

Also Published As

Publication number Publication date
US5235275A (en) 1993-08-10
EP0469158A4 (en) 1992-06-24
WO1991013347A1 (fr) 1991-09-05
DE69123797T2 (de) 1997-07-03
EP0469158B1 (de) 1996-12-27
KR920701818A (ko) 1992-08-12
KR960005364B1 (ko) 1996-04-24
EP0469158A1 (de) 1992-02-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee