DE69320398T2 - Magnetooptischer Sensorkopf - Google Patents

Magnetooptischer Sensorkopf

Info

Publication number
DE69320398T2
DE69320398T2 DE69320398T DE69320398T DE69320398T2 DE 69320398 T2 DE69320398 T2 DE 69320398T2 DE 69320398 T DE69320398 T DE 69320398T DE 69320398 T DE69320398 T DE 69320398T DE 69320398 T2 DE69320398 T2 DE 69320398T2
Authority
DE
Germany
Prior art keywords
magneto
optical sensor
sensor head
head
optical
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
DE69320398T
Other languages
English (en)
Other versions
DE69320398D1 (de
Inventor
Kazushi Shirai
Toshihiro Shinbo
Norio Takeda
Mitsuzo Arii
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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
Priority claimed from JP04116141A external-priority patent/JP3114765B2/ja
Priority claimed from JP13067492A external-priority patent/JPH06222120A/ja
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Application granted granted Critical
Publication of DE69320398D1 publication Critical patent/DE69320398D1/de
Publication of DE69320398T2 publication Critical patent/DE69320398T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
    • G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect
    • 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
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • 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
    • G01P3/486—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 delivered by photo-electric detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Measuring Magnetic Variables (AREA)
DE69320398T 1992-05-08 1993-05-05 Magnetooptischer Sensorkopf Expired - Fee Related DE69320398T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04116141A JP3114765B2 (ja) 1992-05-08 1992-05-08 光磁界センサ
JP13067492A JPH06222120A (ja) 1992-05-22 1992-05-22 反射型光磁界センサヘッド

Publications (2)

Publication Number Publication Date
DE69320398D1 DE69320398D1 (de) 1998-09-24
DE69320398T2 true DE69320398T2 (de) 1999-05-06

Family

ID=26454511

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320398T Expired - Fee Related DE69320398T2 (de) 1992-05-08 1993-05-05 Magnetooptischer Sensorkopf

Country Status (3)

Country Link
US (1) US5493222A (de)
EP (1) EP0568992B1 (de)
DE (1) DE69320398T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485079A (en) * 1993-03-29 1996-01-16 Matsushita Electric Industrial Co., Ltd. Magneto-optical element and optical magnetic field sensor
US5617022A (en) * 1995-05-01 1997-04-01 Hydro-Aire Division Of Crane Company Fiberoptic velocity transducer including dielectric coating for filtering and velocity determination
JPH1144744A (ja) * 1997-07-29 1999-02-16 Mitsubishi Gas Chem Co Inc 反射型光磁界センサ
JP3493119B2 (ja) * 1997-08-25 2004-02-03 Ｆｄｋ株式会社 ファラデー回転角可変装置
JP2002528707A (ja) * 1998-10-21 2002-09-03 ジー． ダンカン，ポール 希土類鉄ガーネットを用いて光の波面の偏光回転を光学的に測定するための装置および方法
JP2002022775A (ja) 2000-07-05 2002-01-23 Ando Electric Co Ltd 電気光学プローブおよび磁気光学プローブ
WO2002052512A2 (de) * 2000-12-22 2002-07-04 Giesecke & Devrient Gmbh Vorrichtungen und verfahren zur untersuchung von magnetischen eigenschaften von objekten
JP2002311402A (ja) * 2001-04-11 2002-10-23 Minebea Co Ltd ファラデー回転子
US6714007B2 (en) * 2002-01-18 2004-03-30 Honeywell International Inc. Optically powered resonant integrated microstructure magnetic field gradient sensor
AT411852B (de) * 2002-02-12 2004-06-25 Didosyan Yuri S Dr Verfahren und vorrichtung zur änderung des polarisationszustandes von licht mit einem magnetisch einachsigen kristall
JP3812525B2 (ja) 2002-09-20 2006-08-23 株式会社村田製作所 光磁界センサ
DE102004025937A1 (de) * 2004-05-27 2005-12-22 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zur Untersuchung von magnetichen Eigenschaften von Objekten
US8593157B2 (en) * 2005-02-15 2013-11-26 Walleye Technologies, Inc. Electromagnetic scanning imager

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737277A (en) * 1980-08-18 1982-03-01 Hitachi Ltd Measuring device for magnetic field
SU1038894A1 (ru) * 1982-01-19 1983-08-30 Ордена Трудового Красного Знамени Институт Радиотехники И Электроники Ан Ссср Способ измерени магнитного пол
US4818080A (en) * 1987-11-05 1989-04-04 General Electric Company Monolithic faraday optical switch
US5038102A (en) * 1988-12-27 1991-08-06 Amespace, Inc. Speed sensor utilizing magneto-optics switch actuated by magnetic field rotation
DE9015613U1 (de) * 1989-12-22 1991-01-31 Iveco Magirus AG, 7900 Ulm Vorrichtung zur Messung einer physikalischen Größe mit Hilfe eines faseroptischen Sensors unter Ausnutzung des Farraday-Effektes
JP2616124B2 (ja) * 1990-04-03 1997-06-04 松下電器産業株式会社 磁気センサの製作方法

Also Published As

Publication number Publication date
US5493222A (en) 1996-02-20
EP0568992B1 (de) 1998-08-19
DE69320398D1 (de) 1998-09-24
EP0568992A3 (en) 1994-06-15
EP0568992A2 (de) 1993-11-10

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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