FR2296182A1 - Detecteur de presence d'un materiau magnetique - Google Patents
Detecteur de presence d'un materiau magnetiqueInfo
- Publication number
- FR2296182A1 FR2296182A1 FR7540004A FR7540004A FR2296182A1 FR 2296182 A1 FR2296182 A1 FR 2296182A1 FR 7540004 A FR7540004 A FR 7540004A FR 7540004 A FR7540004 A FR 7540004A FR 2296182 A1 FR2296182 A1 FR 2296182A1
- Authority
- FR
- France
- Prior art keywords
- magnetic material
- presence detector
- detector
- 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.)
- Granted
Links
- 239000000696 magnetic material Substances 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/147—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/66—Arsenic compounds
- C07F9/70—Organo-arsenic compounds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
-
- 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
-
- 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
- G01R33/09—Magnetoresistive devices
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Artificial Intelligence (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Measuring Magnetic Variables (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Hall/Mr Elements (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21417574 | 1974-12-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2296182A1 true FR2296182A1 (fr) | 1976-07-23 |
FR2296182B1 FR2296182B1 (fr) | 1982-02-19 |
Family
ID=16651473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7540004A Granted FR2296182A1 (fr) | 1974-12-29 | 1975-12-29 | Detecteur de presence d'un materiau magnetique |
Country Status (7)
Country | Link |
---|---|
US (1) | US4021728A (fr) |
JP (1) | JPS5927115B2 (fr) |
CA (1) | CA1063207A (fr) |
DE (1) | DE2558956A1 (fr) |
FR (1) | FR2296182A1 (fr) |
GB (1) | GB1535197A (fr) |
NL (1) | NL191248C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428875A1 (fr) * | 1978-06-16 | 1980-01-11 | Cii Honeywell Bull | Procede et appareil de lecture d'informations codees magnetiquement |
FR2508203A1 (fr) * | 1981-06-19 | 1982-12-24 | Cii Honeywell Bull | Dispositif de transduction magnetoresistant de lecture d'informations codees a faible densite |
WO1984003533A1 (fr) * | 1983-03-08 | 1984-09-13 | Hertneck Hans Joerg | Dispositif pour serrures |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1126818A (fr) * | 1978-03-27 | 1982-06-29 | Hiroyuki Ohkubo | Appareil detecteur d'un champ magnetique externe |
US4371116A (en) * | 1978-04-04 | 1983-02-01 | Sage David M | Variable reactance alignment detector and control |
JPS54157610A (en) * | 1978-05-26 | 1979-12-12 | Sony Corp | Magnetic head |
US4255708A (en) * | 1978-12-15 | 1981-03-10 | International Business Machines Corporation | Magnetoresistive position transducer with invariable peak signal |
GB2052855B (en) * | 1979-03-30 | 1983-05-18 | Sony Corp | Magnetoresistive transducers |
US4394621A (en) * | 1980-12-08 | 1983-07-19 | International Business Machines Corporation | Electronic velocity measurement especially for self-clocking write head |
IT1211140B (it) * | 1980-12-09 | 1989-09-29 | Sony Corp | Dispositivo commutatore a sensore magnetico. |
US4616281A (en) * | 1982-03-10 | 1986-10-07 | Copal Company Limited | Displacement detecting apparatus comprising magnetoresistive elements |
JPS5945578U (ja) * | 1982-09-20 | 1984-03-26 | 三洋電機株式会社 | 磁気検出器 |
JPS6034086A (ja) * | 1983-08-06 | 1985-02-21 | Sharp Corp | 磁気センサ |
US4523193A (en) * | 1983-11-21 | 1985-06-11 | Levinson Samuel H | Remote-controlled doorbell signal receiver |
US4668913A (en) * | 1985-03-14 | 1987-05-26 | International Business Machines Corporation | Constant flux magneto resistive magnetic reluctance sensing apparatus |
US4812674A (en) * | 1985-05-20 | 1989-03-14 | Square D Company | Safety gate limit switch using Hall effect transducer |
US4713723A (en) * | 1986-07-01 | 1987-12-15 | Kaufman Lance R | Isolation transformer |
DE3788831T2 (de) * | 1986-07-29 | 1994-08-11 | Nippon Denso Co | Kontaktloses Potentiometer. |
GB2205406A (en) * | 1987-06-04 | 1988-12-07 | Spectrol Reliance Ltd | Encoder apparatus |
JPH02271216A (ja) * | 1989-04-13 | 1990-11-06 | Hitachi Metals Ltd | 磁気式エンコーダ |
DE4003212A1 (de) * | 1990-01-31 | 1991-08-01 | Royd Luedtke | Einrichtung zur identifikation von stueckguetern |
DE4006596A1 (de) * | 1990-03-02 | 1991-09-05 | Siemens Ag | Elektronischer schalter |
JP2720681B2 (ja) * | 1992-01-06 | 1998-03-04 | 株式会社村田製作所 | 移動体の移動検出装置 |
DE4343677A1 (de) * | 1993-12-21 | 1995-06-22 | Teves Gmbh Alfred | Schaltungsanordnung zur Auswertung des Meßsignals einer Brückenschaltung |
EP0742906B1 (fr) * | 1994-01-31 | 1998-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Utilisation d'un dispositif a bobines miniaturise, fabrique en technologie planaire, pour la detection de matieres ferromagnetiques |
JPH08249602A (ja) * | 1995-03-06 | 1996-09-27 | Mitsubishi Electric Corp | 磁気式記憶再生方法ならびにそれに用いる磁気再生装置、磁気記憶媒体およびその製法 |
JP3605880B2 (ja) * | 1995-05-12 | 2004-12-22 | 株式会社デンソー | 非接触型回転センサ |
DE19628566A1 (de) * | 1996-07-16 | 1998-01-29 | Bosch Gmbh Robert | Magnetfeldempfindlicher Sensor |
JP3726418B2 (ja) * | 1997-04-18 | 2005-12-14 | 株式会社デンソー | 回転検出装置 |
JP2001059851A (ja) * | 1999-08-20 | 2001-03-06 | Yazaki Corp | 電流検出装置及び電流検出方法 |
JP4248188B2 (ja) * | 2002-04-02 | 2009-04-02 | 株式会社根本杏林堂 | コントローラ付き装置及び薬液注入装置 |
JP4397635B2 (ja) * | 2003-07-03 | 2010-01-13 | 株式会社根本杏林堂 | コントローラ装置、コントローラユニットおよび薬液注入装置 |
DE102008015861A1 (de) * | 2008-03-26 | 2009-10-01 | Continental Teves Ag & Co. Ohg | Sensoranordnung |
US9030780B2 (en) * | 2012-08-08 | 2015-05-12 | The United States Of America As Represented By The Secretary Of The Army | Method and apparatus for reading a non-volatile memory using a spin torque oscillator |
US9245617B2 (en) | 2013-12-17 | 2016-01-26 | The United States Of America As Represented By The Secretary Of The Army | Nonvolatile memory cells programable by phase change and method |
CN106998644B (zh) * | 2016-01-22 | 2020-08-07 | 鸿富锦精密电子(郑州)有限公司 | 静电保护电路及具有该静电保护电路的电子装置 |
US10466206B2 (en) * | 2016-12-12 | 2019-11-05 | Southwest Research Institute | Non destructive magnetostrictive testing with unidirectional guided waves generated by ferromagnetic strip sensor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3405355A (en) * | 1965-02-26 | 1968-10-08 | Navy Usa | Thin film magnetoresistance magnetometer having a current path etched at an angle tothe axes of magnetization |
DE1910601A1 (de) * | 1969-03-01 | 1970-09-17 | Siemens Ag | Messumformer |
FR2203124A1 (fr) * | 1972-10-11 | 1974-05-10 | Ibm | |
FR2237204A1 (fr) * | 1973-07-13 | 1975-02-07 | Sony Corp |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2997648A (en) * | 1944-09-27 | 1961-08-22 | Bell Telephone Labor Inc | Magnetic field detector |
GB1245954A (en) * | 1967-12-07 | 1971-09-15 | Ici Ltd | Device for the detection of the rotational motion of a shaft |
US3493694A (en) * | 1966-01-19 | 1970-02-03 | Ampex | Magnetoresistive head |
US3546579A (en) * | 1968-10-22 | 1970-12-08 | Sperry Rand Corp | Thin-ferromagnetic-film magnetoresistance magnetometer sensitive to easy axis field components and biased to be insensitive to hard axis field components |
US3731007A (en) * | 1971-04-19 | 1973-05-01 | Denki Onkyo Co Ltd | Magnetic head having a magneto-resistive bridge circuit |
US3716781A (en) * | 1971-10-26 | 1973-02-13 | Ibm | Magnetoresistive sensing device for detection of magnetic fields having a shape anisotropy field and uniaxial anisotropy field which are perpendicular |
JPS4854957A (fr) * | 1971-11-08 | 1973-08-02 |
-
1974
- 1974-12-29 JP JP752141A patent/JPS5927115B2/ja not_active Expired
-
1975
- 1975-12-22 CA CA242,302A patent/CA1063207A/fr not_active Expired
- 1975-12-22 US US05/642,997 patent/US4021728A/en not_active Expired - Lifetime
- 1975-12-23 GB GB52650/75A patent/GB1535197A/en not_active Expired
- 1975-12-24 NL NL7515046A patent/NL191248C/xx not_active IP Right Cessation
- 1975-12-29 DE DE19752558956 patent/DE2558956A1/de active Granted
- 1975-12-29 FR FR7540004A patent/FR2296182A1/fr active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3405355A (en) * | 1965-02-26 | 1968-10-08 | Navy Usa | Thin film magnetoresistance magnetometer having a current path etched at an angle tothe axes of magnetization |
DE1910601A1 (de) * | 1969-03-01 | 1970-09-17 | Siemens Ag | Messumformer |
FR2203124A1 (fr) * | 1972-10-11 | 1974-05-10 | Ibm | |
FR2237204A1 (fr) * | 1973-07-13 | 1975-02-07 | Sony Corp |
Non-Patent Citations (1)
Title |
---|
EXRV/75 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428875A1 (fr) * | 1978-06-16 | 1980-01-11 | Cii Honeywell Bull | Procede et appareil de lecture d'informations codees magnetiquement |
FR2508203A1 (fr) * | 1981-06-19 | 1982-12-24 | Cii Honeywell Bull | Dispositif de transduction magnetoresistant de lecture d'informations codees a faible densite |
WO1984003533A1 (fr) * | 1983-03-08 | 1984-09-13 | Hertneck Hans Joerg | Dispositif pour serrures |
EP0118884A1 (fr) * | 1983-03-08 | 1984-09-19 | Hertneck, Hans Jörg | Dispositif pour serrures |
US4737785A (en) * | 1983-03-08 | 1988-04-12 | Hans J. Hertneck | Device for locks |
Also Published As
Publication number | Publication date |
---|---|
DE2558956A1 (de) | 1976-07-01 |
NL7515046A (nl) | 1976-07-01 |
FR2296182B1 (fr) | 1982-02-19 |
JPS5178647A (fr) | 1976-07-08 |
DE2558956C2 (fr) | 1989-09-14 |
CA1063207A (fr) | 1979-09-25 |
JPS5927115B2 (ja) | 1984-07-03 |
US4021728A (en) | 1977-05-03 |
NL191248C (nl) | 1995-04-03 |
NL191248B (nl) | 1994-11-01 |
GB1535197A (en) | 1978-12-13 |
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