DE69017985T2 - Hochempfindlicher optischer Magnetfeldfühler. - Google Patents

Hochempfindlicher optischer Magnetfeldfühler.

Info

Publication number
DE69017985T2
DE69017985T2 DE69017985T DE69017985T DE69017985T2 DE 69017985 T2 DE69017985 T2 DE 69017985T2 DE 69017985 T DE69017985 T DE 69017985T DE 69017985 T DE69017985 T DE 69017985T DE 69017985 T2 DE69017985 T2 DE 69017985T2
Authority
DE
Germany
Prior art keywords
magnetic field
field sensor
highly sensitive
sensitive optical
optical 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
DE69017985T
Other languages
English (en)
Other versions
DE69017985D1 (de
Inventor
Minoru Imaeda
Emi Asai
Katsunori Okamoto
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Application granted granted Critical
Publication of DE69017985D1 publication Critical patent/DE69017985D1/de
Publication of DE69017985T2 publication Critical patent/DE69017985T2/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
DE69017985T 1989-08-29 1990-08-24 Hochempfindlicher optischer Magnetfeldfühler. Expired - Fee Related DE69017985T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1220177A JP2971485B2 (ja) 1989-08-29 1989-08-29 高感度光磁界センサに用いるガーネット型フェライト多結晶体の製造方法

Publications (2)

Publication Number Publication Date
DE69017985D1 DE69017985D1 (de) 1995-04-27
DE69017985T2 true DE69017985T2 (de) 1995-11-23

Family

ID=16747094

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69017985T Expired - Fee Related DE69017985T2 (de) 1989-08-29 1990-08-24 Hochempfindlicher optischer Magnetfeldfühler.

Country Status (5)

Country Link
US (1) US5140156A (de)
EP (1) EP0415668B1 (de)
JP (1) JP2971485B2 (de)
CA (1) CA2024036C (de)
DE (1) DE69017985T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH079441B2 (ja) * 1991-03-20 1995-02-01 日本碍子株式会社 光応用センサおよびその製造方法
US5485079A (en) * 1993-03-29 1996-01-16 Matsushita Electric Industrial Co., Ltd. Magneto-optical element and optical magnetic field sensor
US6630819B2 (en) * 2001-02-22 2003-10-07 The University Of Chicago Magneto-optic current sensor
US7440479B2 (en) * 2001-09-06 2008-10-21 Brown University Magneto-optoelectronic switch and sensor
JP5530936B2 (ja) * 2009-01-16 2014-06-25 トヨタ自動車株式会社 巨大ファラデー回転を用いた超高感度磁気センサ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58139082A (ja) * 1982-02-15 1983-08-18 Hitachi Ltd 磁界測定装置
JPH0766044B2 (ja) * 1985-06-29 1995-07-19 株式会社東芝 磁界センサ
JPS63107900A (ja) * 1986-10-27 1988-05-12 Mitsubishi Gas Chem Co Inc 磁気光学素子材料
JPS63259618A (ja) * 1987-04-17 1988-10-26 Toshiba Corp 磁気光学素子及びその製造方法
JPH0731232B2 (ja) * 1988-06-10 1995-04-10 松下電器産業株式会社 磁界測定装置
US4947107A (en) * 1988-06-28 1990-08-07 Sundstrand Corporation Magneto-optic current sensor
US4973899A (en) * 1989-08-24 1990-11-27 Sundstrand Corporation Current sensor and method utilizing multiple layers of thin film magneto-optic material and signal processing to make the output independent of system losses

Also Published As

Publication number Publication date
EP0415668A2 (de) 1991-03-06
EP0415668A3 (en) 1991-08-07
CA2024036C (en) 1997-09-23
DE69017985D1 (de) 1995-04-27
JP2971485B2 (ja) 1999-11-08
US5140156A (en) 1992-08-18
JPH0384483A (ja) 1991-04-10
CA2024036A1 (en) 1991-03-01
EP0415668B1 (de) 1995-03-22

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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