DE69633356D1 - Magnetfelddetektor - Google Patents
MagnetfelddetektorInfo
- Publication number
- DE69633356D1 DE69633356D1 DE69633356T DE69633356T DE69633356D1 DE 69633356 D1 DE69633356 D1 DE 69633356D1 DE 69633356 T DE69633356 T DE 69633356T DE 69633356 T DE69633356 T DE 69633356T DE 69633356 D1 DE69633356 D1 DE 69633356D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic field
- field detector
- detector
- magnetic
- field
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Hall/Mr Elements (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US405461 | 1995-03-16 | ||
US08/405,461 US5610518A (en) | 1995-03-16 | 1995-03-16 | Method and apparatus for detecting small magnetizable particles and flaws in nonmagnetic conductors |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69633356D1 true DE69633356D1 (de) | 2004-10-21 |
DE69633356T2 DE69633356T2 (de) | 2005-10-20 |
Family
ID=23603790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69633356T Expired - Lifetime DE69633356T2 (de) | 1995-03-16 | 1996-03-12 | Magnetfelddetektor |
Country Status (4)
Country | Link |
---|---|
US (1) | US5610518A (de) |
EP (1) | EP0732595B1 (de) |
JP (1) | JPH08285953A (de) |
DE (1) | DE69633356T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5842986A (en) | 1995-08-16 | 1998-12-01 | Proton Sciences Corp. | Ferromagnetic foreign body screening method and apparatus |
US20020115925A1 (en) * | 1996-06-25 | 2002-08-22 | Avrin William F. | Ferromagnetic foreign body detection utilizing eye movement |
US6965792B2 (en) * | 1996-06-25 | 2005-11-15 | Mednovus, Inc. | Susceptometers for foreign body detection |
US6496713B2 (en) | 1996-06-25 | 2002-12-17 | Mednovus, Inc. | Ferromagnetic foreign body detection with background canceling |
US6106089A (en) * | 1997-04-30 | 2000-08-22 | Eastman Kodak Company | Magnetic sensor for ink detection |
DE19941860A1 (de) * | 1999-09-02 | 2001-03-29 | Siemens Ag | Verbesserungen an einem mit Magnetfeld-Sonde arbeitenden Magnetfeldsensor |
US20030216632A1 (en) * | 2001-10-29 | 2003-11-20 | Mednovus, Inc. | Ferromagnetic sensing method and apparatus |
US20030083588A1 (en) * | 2001-10-29 | 2003-05-01 | Mcclure Richard J. | Pre-screening utilizing magnetic resonance imaging field |
US7315166B2 (en) | 2003-01-17 | 2008-01-01 | Mednovus, Inc. | Magnetic resonance imaging screening method and apparatus |
US7154266B2 (en) * | 2003-01-17 | 2006-12-26 | Quantum Magnetics, Inc. | Screening method and apparatus |
US7239134B2 (en) | 2003-01-17 | 2007-07-03 | Mednovus, Inc. | Screening method and apparatus |
US6956369B2 (en) * | 2003-01-17 | 2005-10-18 | Mednovus, Inc. | Screening method and apparatus |
US20060022670A1 (en) * | 2004-07-31 | 2006-02-02 | Mednovus, Inc. | Magnetic resonance screening portal with combination sensing |
DE102004045271B4 (de) * | 2004-09-17 | 2017-12-28 | Jürgen Rohmann | Verfahren und Vorrichtung zur Detektion von Fehlstellen eines Prüfkörpers aus ferromagnetischem Material |
US7239223B2 (en) * | 2004-10-18 | 2007-07-03 | Mednovus, Inc. | Enhancement magnetizer for magnetic resonance imaging screening |
US20060139025A1 (en) * | 2004-12-24 | 2006-06-29 | Mednovus, Inc. | Saturation-resistant magnetoresistive sensor for ferromagnetic screening |
US7295107B2 (en) * | 2004-12-30 | 2007-11-13 | Mednovus, Inc. | Ferromagnetic detection pillar |
US20060145691A1 (en) * | 2004-12-30 | 2006-07-06 | Mednovus, Inc. | Ferromagnetic detection pillar and variable aperture portal |
US20070057786A1 (en) * | 2005-09-13 | 2007-03-15 | Mednovus, Inc. | Ferromagnetic threat warning system |
US20080281187A1 (en) * | 2006-10-18 | 2008-11-13 | Mednovus, Inc. | Ferromagnetic threat detection method apparatus |
FR2922472B1 (fr) * | 2007-10-22 | 2010-04-02 | Snecma | Dispositif et procede de detection,de localisation et de comptage de billes de grenaillage dans une piece mecanique creuse |
JP2009103591A (ja) * | 2007-10-24 | 2009-05-14 | Ryoei Engineering Kk | 磁性金属円筒体の欠落検出方法およびその装置 |
GB2468311B (en) * | 2009-03-03 | 2014-09-17 | Dyson Technology Ltd | Positioning of a Hall-effect sensor within an electric machine |
US10060881B2 (en) * | 2014-04-16 | 2018-08-28 | Texas Instruments Incorporated | Surface sensing method for corrosion sensing via magnetic modulation |
DE102014011245B3 (de) * | 2014-08-01 | 2015-06-11 | Micronas Gmbh | Magnetfeldmessvorrichtung |
RU2584726C1 (ru) * | 2014-12-29 | 2016-05-20 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт стандартизации и унификации" | Способ измерения параметров трещин в немагнитных электропроводящих объектах |
RU2610931C1 (ru) * | 2015-11-10 | 2017-02-17 | Общество с ограниченной ответственностью "АльфаСервис" | Способ вихретокового контроля электропроводящих объектов и устройство для его реализации |
CN110859042A (zh) * | 2018-06-26 | 2020-03-03 | 应用材料公司 | 用于测量到铁磁元件的距离的距离传感器、磁性悬浮系统和用于测量到铁磁元件的距离的方法 |
CN109100415A (zh) * | 2018-09-03 | 2018-12-28 | 中国石油大学(北京) | 可穿透管道保温层的无损检测装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3419798A (en) * | 1965-12-17 | 1968-12-31 | Clark Equipment Co | Displacement sensing transducer using hall effect devices |
DE2157011A1 (de) * | 1971-11-17 | 1973-05-24 | Krauss Maffei Ag | Abstandsmessanordnung fuer elektromagnetische trag- oder fuehrungssysteme fuer schwebefahrzeuge |
US4093917A (en) * | 1976-10-06 | 1978-06-06 | The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration | Velocity measurement system |
US4270088A (en) * | 1979-02-21 | 1981-05-26 | Otis Elevator Company | Method and apparatus for magnetically testing metal tapes |
JPS57189011A (en) * | 1981-05-15 | 1982-11-20 | Fuji Heavy Ind Ltd | Position detecting mechanism |
US4503393A (en) * | 1981-10-05 | 1985-03-05 | Exxon Production Research Co. | Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor |
CH662649A5 (de) * | 1983-12-15 | 1987-10-15 | Maag Zahnraeder & Maschinen Ag | Zahnmesstaster. |
GB2159954A (en) * | 1984-06-06 | 1985-12-11 | British Gas Corp | Apparatus, system and method for detecting a discontinuity in a pipe or conduit |
EP0193168A3 (de) * | 1985-02-25 | 1989-01-25 | Kubota Limited | Verfahren zur Prüfung der Karburisierung und Sonde dafür |
US4785242A (en) * | 1986-12-15 | 1988-11-15 | Sundstrand Corporation | Position detecting apparatus using multiple magnetic sensors for determining relative and absolute angular position |
US4739723A (en) * | 1987-01-27 | 1988-04-26 | Plucknett Duane D | Body board protector |
US4859941A (en) * | 1987-03-18 | 1989-08-22 | Sprague Electric Company | Proximity selectro with integral magnet, pole-piece plate and pair of magnetic transducers |
FR2630204B1 (fr) * | 1988-04-18 | 1991-05-10 | Alsthom | Capteur de position |
US4970463A (en) * | 1989-03-13 | 1990-11-13 | Durakool Incorporated | Temperature stable proximity sensor with sensing of flux emanating from the lateral surface of a magnet |
EP0412200B1 (de) * | 1989-08-11 | 1993-02-10 | Siemens Aktiengesellschaft | Dreherkennungsvorrichtung |
FR2662873B1 (fr) * | 1990-05-30 | 1992-09-18 | Electrifil Ind | Composant et capteur a effet hall a detection differentielle. |
US5304926A (en) * | 1992-04-08 | 1994-04-19 | Honeywell Inc. | Geartooth position sensor with two hall effect elements |
EP0598934B1 (de) * | 1992-11-23 | 1996-05-01 | Siemens Aktiengesellschaft | Anordnung zur berührungsfreien Erfassung der Drehzahl bzw. Geschwindigkeit oder Position eines Geberteils |
-
1995
- 1995-03-16 US US08/405,461 patent/US5610518A/en not_active Expired - Fee Related
-
1996
- 1996-03-12 DE DE69633356T patent/DE69633356T2/de not_active Expired - Lifetime
- 1996-03-12 EP EP96103839A patent/EP0732595B1/de not_active Expired - Lifetime
- 1996-03-15 JP JP5870496A patent/JPH08285953A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0732595B1 (de) | 2004-09-15 |
JPH08285953A (ja) | 1996-11-01 |
DE69633356T2 (de) | 2005-10-20 |
EP0732595A2 (de) | 1996-09-18 |
US5610518A (en) | 1997-03-11 |
EP0732595A3 (de) | 1996-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8330 | Complete renunciation |