CA2046165A1 - Methode et appareil de mise en forme de champs magnetiques - Google Patents
Methode et appareil de mise en forme de champs magnetiquesInfo
- Publication number
- CA2046165A1 CA2046165A1 CA2046165A CA2046165A CA2046165A1 CA 2046165 A1 CA2046165 A1 CA 2046165A1 CA 2046165 A CA2046165 A CA 2046165A CA 2046165 A CA2046165 A CA 2046165A CA 2046165 A1 CA2046165 A1 CA 2046165A1
- Authority
- CA
- Canada
- Prior art keywords
- magnetic field
- shaping
- generated
- currents
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Burglar Alarm Systems (AREA)
- Electronic Switches (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/605,826 | 1990-10-30 | ||
US07/605,826 US5130697A (en) | 1990-10-30 | 1990-10-30 | Method and apparatus for shaping a magnetic field |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2046165A1 true CA2046165A1 (fr) | 1992-05-01 |
CA2046165C CA2046165C (fr) | 1995-12-05 |
Family
ID=24425376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002046165A Expired - Fee Related CA2046165C (fr) | 1990-10-30 | 1991-07-03 | Methode et appareil de mise en forme de champs magnetiques |
Country Status (6)
Country | Link |
---|---|
US (1) | US5130697A (fr) |
EP (1) | EP0483786A3 (fr) |
JP (1) | JPH0721479A (fr) |
AR (1) | AR244010A1 (fr) |
BR (1) | BR9103909A (fr) |
CA (1) | CA2046165C (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9014496D0 (en) * | 1990-06-29 | 1990-08-22 | Safeline Ltd | Metal detectors |
GB9125846D0 (en) * | 1991-12-04 | 1992-02-05 | Esselte Meto Int Gmbh | Improved interrogation and detection means for theft-detection systems |
US5751256A (en) * | 1994-03-04 | 1998-05-12 | Flexcon Company Inc. | Resonant tag labels and method of making same |
CN1185865A (zh) * | 1995-05-30 | 1998-06-24 | 传感电子公司 | 用于改进询问场分布的eas系统天线结构 |
US5602556A (en) * | 1995-06-07 | 1997-02-11 | Check Point Systems, Inc. | Transmit and receive loop antenna |
AU7478996A (en) * | 1995-11-02 | 1997-05-22 | Sensormatic Electronics Corporation | Improved antenna shield and antenna assembly |
US5653192A (en) * | 1996-03-06 | 1997-08-05 | Alfa Laval Agri Inc. | Livestock identification apparatus |
AU2546597A (en) * | 1996-04-10 | 1997-10-29 | Sentry Technology Corporation | Electronic article surveillance system |
US5990791A (en) * | 1997-10-22 | 1999-11-23 | William B. Spargur | Anti-theft detection system |
US5894268A (en) * | 1998-01-28 | 1999-04-13 | Mclaren; Edwin C. | Cassette and security strip therefor |
US6061552A (en) * | 1998-04-28 | 2000-05-09 | Sensormatic Electronics Corporation | EAS pedestal and method for making the same |
US6397661B1 (en) | 1998-12-30 | 2002-06-04 | University Of Kentucky Research Foundation | Remote magneto-elastic analyte, viscosity and temperature sensing apparatus and associated methods of sensing |
US6393921B1 (en) | 1999-05-13 | 2002-05-28 | University Of Kentucky Research Foundation | Magnetoelastic sensing apparatus and method for remote pressure query of an environment |
ITAR20000040A1 (it) * | 2000-09-08 | 2002-03-08 | Alessandro Manneschi | Trasduttore lettore di transponder per il controllo dei passaggi |
US6688162B2 (en) | 2000-10-20 | 2004-02-10 | University Of Kentucky Research Foundation | Magnetoelastic sensor for characterizing properties of thin-film/coatings |
US6639402B2 (en) | 2001-01-31 | 2003-10-28 | University Of Kentucky Research Foundation | Temperature, stress, and corrosive sensing apparatus utilizing harmonic response of magnetically soft sensor element (s) |
US6906628B2 (en) * | 2001-03-13 | 2005-06-14 | Sensormatic Electronics Corporation | Varying field electronic tag detection system |
US6681989B2 (en) * | 2002-01-15 | 2004-01-27 | International Business Machines Corporation | Inventory control and point-of-sale system and method |
JP4803755B2 (ja) * | 2005-01-26 | 2011-10-26 | セントラルエンジニアリング株式会社 | Idタグ読取装置 |
EP1750148A1 (fr) * | 2005-08-04 | 2007-02-07 | Giovanni Manneschi | Détecteur de métaux à haute performance |
EP2863480B1 (fr) | 2010-09-07 | 2018-11-07 | Murata Manufacturing Co., Ltd. | Appareil de terminal de communication comprenant un dispositif d'antenne |
WO2012113361A1 (fr) | 2011-02-24 | 2012-08-30 | Balluff Gmbh | Capteur inductif |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4769631A (en) * | 1986-06-30 | 1988-09-06 | Sensormatic Electronics Corporation | Method, system and apparatus for magnetic surveillance of articles |
WO1989007347A1 (fr) * | 1988-02-04 | 1989-08-10 | Uniscan Ltd. | Concentrateur de champs magnetiques |
FI84209C (fi) * | 1988-11-01 | 1991-10-25 | Outokumpu Oy | Metalldetektor. |
JPH02166230A (ja) * | 1988-12-19 | 1990-06-26 | Igeta Kouban Kk | 磁気シールド材の製造方法 |
-
1990
- 1990-10-30 US US07/605,826 patent/US5130697A/en not_active Expired - Lifetime
-
1991
- 1991-07-03 CA CA002046165A patent/CA2046165C/fr not_active Expired - Fee Related
- 1991-07-31 AR AR91320300A patent/AR244010A1/es active
- 1991-09-11 BR BR919103909A patent/BR9103909A/pt not_active Application Discontinuation
- 1991-10-04 JP JP3256846A patent/JPH0721479A/ja active Pending
- 1991-10-30 EP EP19910118492 patent/EP0483786A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0483786A3 (en) | 1992-10-21 |
JPH0721479A (ja) | 1995-01-24 |
BR9103909A (pt) | 1992-06-16 |
EP0483786A2 (fr) | 1992-05-06 |
US5130697A (en) | 1992-07-14 |
CA2046165C (fr) | 1995-12-05 |
AR244010A1 (es) | 1993-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |