JP4656282B2 - 磁界測定装置 - Google Patents
磁界測定装置 Download PDFInfo
- Publication number
- JP4656282B2 JP4656282B2 JP2004052859A JP2004052859A JP4656282B2 JP 4656282 B2 JP4656282 B2 JP 4656282B2 JP 2004052859 A JP2004052859 A JP 2004052859A JP 2004052859 A JP2004052859 A JP 2004052859A JP 4656282 B2 JP4656282 B2 JP 4656282B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- crystal
- field measuring
- measuring apparatus
- optical fiber
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
- G01R31/002—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing where the device under test is an electronic circuit
-
- 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
Description
2 半導体レーザ光源
3 光ファイバ
4−1,4−2 ファイバアンプ
5 偏波コントローラ
6 光循環器
7 アナライザ
8 フォトディテクタ
9 同軸ケーブル
10 スペクトラムアナライザ
11 被測定物
12 磁気光学結晶
13 誘電体膜
14 光ファイバのコア
15 結晶中のプローブ光
16 プローブ光
17 集光用レンズ
18 単一モード光ファイバ
19 ガラススリーブ
20 ガラスチューブ
21 空隙
Claims (4)
- 磁気光学結晶と、該磁気光学結晶にプローブ光を導入するための光ファイバと、前記磁気光学結晶と前記光ファイバとの間にあって、前記磁気光学結晶に入射する前記プローブ光の光径を絞る円柱状の集光用レンズとを備えることを特徴とする磁界測定装置。
- 前記磁気光学結晶と前記集光用レンズとが接合されていることを特徴とする請求項1に記載の磁界測定装置。
- 前記光ファイバの一部と前記集光用レンズとがガラスチューブに収容されていることを特徴とする請求項2に記載の磁界測定装置。
- 前記光ファイバは、単一モード光ファイバよりコア径の小さいことを特徴とする請求項1または2に記載の磁界測定装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004052859A JP4656282B2 (ja) | 2004-02-27 | 2004-02-27 | 磁界測定装置 |
US10/927,376 US7385393B2 (en) | 2004-02-27 | 2004-08-27 | Magnetic field measuring apparatus capable of measuring at high spatial resolution |
US12/109,739 US20080238419A1 (en) | 2004-02-27 | 2008-04-25 | Magnetic field measuring apparatus capable of measuring at high spatial resolution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004052859A JP4656282B2 (ja) | 2004-02-27 | 2004-02-27 | 磁界測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005241489A JP2005241489A (ja) | 2005-09-08 |
JP4656282B2 true JP4656282B2 (ja) | 2011-03-23 |
Family
ID=34879672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004052859A Expired - Fee Related JP4656282B2 (ja) | 2004-02-27 | 2004-02-27 | 磁界測定装置 |
Country Status (2)
Country | Link |
---|---|
US (2) | US7385393B2 (ja) |
JP (1) | JP4656282B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007000947A1 (ja) * | 2005-06-29 | 2007-01-04 | Nec Corporation | 電界センサ、磁界センサ、電磁界センサ、及びそれらを用いた電磁界測定システム |
JP5019196B2 (ja) * | 2006-02-21 | 2012-09-05 | 独立行政法人情報通信研究機構 | 高周波磁界測定装置 |
JP5590340B2 (ja) * | 2009-06-29 | 2014-09-17 | 日本電気株式会社 | 電界/磁界プローブ |
CN101813732A (zh) * | 2010-05-10 | 2010-08-25 | 中国人民解放军理工大学 | 近区低频强磁场屏蔽效能测试系统及其测试方法 |
CN103364343A (zh) * | 2012-04-10 | 2013-10-23 | 天津大学 | 基于空芯光子晶体光纤的光纤气室装置 |
CN103344925A (zh) * | 2013-07-05 | 2013-10-09 | 上海大学 | 慢光萨格奈克非互易干涉型光纤磁场传感器 |
KR102288805B1 (ko) | 2014-06-04 | 2021-08-12 | 하마마츠 포토닉스 가부시키가이샤 | 검사 장치 및 자기 광학 결정의 배치 방법 |
CN112362581B (zh) * | 2020-10-28 | 2022-02-15 | 华南理工大学 | 一种用于磁场效应测量的非磁性样品腔 |
CN115792750B (zh) * | 2023-02-09 | 2023-04-11 | 中北大学 | 基于片上集成谐振腔的磁传感装置及测量方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6162882A (ja) * | 1984-09-05 | 1986-03-31 | Matsushita Electric Ind Co Ltd | 磁界検出装置 |
JPS63305259A (ja) * | 1987-06-05 | 1988-12-13 | Hamamatsu Photonics Kk | 電圧検出装置 |
JPH02291985A (ja) * | 1989-05-02 | 1990-12-03 | Toshiba Corp | 磁界センサ |
JPH11218636A (ja) * | 1998-02-04 | 1999-08-10 | Nec Corp | 光ファイバ融着接続部の補強構造及び補強方法 |
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60129676A (ja) | 1983-12-19 | 1985-07-10 | Matsushita Electric Ind Co Ltd | 磁界測定装置 |
US5214377A (en) * | 1991-06-03 | 1993-05-25 | Simmonds Precision Products, Inc. | Magnetic debris monitor using magneto-optic sending |
US5280173A (en) * | 1992-01-31 | 1994-01-18 | Brown University Research Foundation | Electric and electromagnetic field sensing system including an optical transducer |
JPH0894692A (ja) | 1994-09-22 | 1996-04-12 | Nippon Telegr & Teleph Corp <Ntt> | アンテナ測定装置 |
JPH08262374A (ja) | 1995-03-20 | 1996-10-11 | Matsushita Electric Ind Co Ltd | 光アイソレータ |
JP3153452B2 (ja) * | 1995-11-17 | 2001-04-09 | 松下電器産業株式会社 | 光磁界センサ |
US5602946A (en) * | 1995-12-22 | 1997-02-11 | Ntn Technical Center (Usa) | Fiber optic sensor system for detecting movement or position of a rotating wheel bearing |
US5719497A (en) * | 1996-05-09 | 1998-02-17 | The Regents Of The University Of California | Lensless Magneto-optic speed sensor |
GB9713422D0 (en) * | 1997-06-26 | 1997-08-27 | Secr Defence | Single mode optical fibre |
US6195479B1 (en) * | 1999-06-28 | 2001-02-27 | E-Tek Dynamics, Inc. | Fiberoptic reflective variable attenuator and on-off switch |
-
2004
- 2004-02-27 JP JP2004052859A patent/JP4656282B2/ja not_active Expired - Fee Related
- 2004-08-27 US US10/927,376 patent/US7385393B2/en active Active
-
2008
- 2008-04-25 US US12/109,739 patent/US20080238419A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6162882A (ja) * | 1984-09-05 | 1986-03-31 | Matsushita Electric Ind Co Ltd | 磁界検出装置 |
JPS63305259A (ja) * | 1987-06-05 | 1988-12-13 | Hamamatsu Photonics Kk | 電圧検出装置 |
JPH02291985A (ja) * | 1989-05-02 | 1990-12-03 | Toshiba Corp | 磁界センサ |
JPH11218636A (ja) * | 1998-02-04 | 1999-08-10 | Nec Corp | 光ファイバ融着接続部の補強構造及び補強方法 |
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 |
Also Published As
Publication number | Publication date |
---|---|
US20050190358A1 (en) | 2005-09-01 |
JP2005241489A (ja) | 2005-09-08 |
US7385393B2 (en) | 2008-06-10 |
US20080238419A1 (en) | 2008-10-02 |
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