JP2018523107A - 周波数変換による磁電的な磁場測定 - Google Patents
周波数変換による磁電的な磁場測定 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
- G01R33/0041—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration using feed-back or modulation techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- 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
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- 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
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/18—Measuring magnetostrictive properties
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
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- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
Description
Claims (13)
- 振動子として磁電的な複合要素を用いる磁場測定方法であって、
前記複合要素の磁歪相に時間依存性の測定磁場を作用させ、
前記複合要素の圧電相を介して測定電圧を取り出し、前記測定電圧から測定磁場を推定する、
磁場測定方法において、
(i)前記複合要素の前記磁歪相と素材結合された少なくとも1つの誘電相を設けるステップであって、前記誘電相は、電圧が印加されると長さ変化を示し、前記長さ変化の大きさは、前記電圧の大きさに非線形に依存する、ステップと、
(ii)時間周期的な変調電圧を前記誘電相に印加するステップと、
を特徴とする、磁場測定方法。 - 磁場測定装置、とりわけ磁場測定方法を実施するための磁場測定装置であって、
非線形の歪み−電圧曲線を有する圧電相(10)を有する、機械的に振動可能な振動子として構成された磁電的な複合要素と、
前記圧電相(10)の上に設けられた電極装置(12,20)と、
前記振動子の変位時に前記圧電相(10)を介して測定電圧を取り出すための手段と、
を有する磁場測定装置において、
時間周期的な変調電圧を前記圧電相(10)に印加するための手段
を特徴とする、磁場測定装置。 - 磁場測定装置、とりわけ磁場測定方法を実施するための磁場測定装置であって、
機械的に振動可能な振動子として構成された磁電的な複合要素と、
前記複合要素の圧電相(10)の上に設けられた第1の電極装置(12,20)と、
前記振動子の変位時に前記圧電相(10)を介して測定電圧を取り出すための手段と、
を有する磁場測定装置において、
前記複合要素と素材結合された、非線形の歪み−電圧曲線を有する誘電相(18)と、
前記誘電相(18)の上に設けられた第2の電極装置(22,24)と、
時間周期的な変調電圧を前記誘電相(18)に印加するための手段と、
を特徴とする、磁場測定装置。 - 前記圧電相(10)は、強誘電体から形成されている、
請求項2記載の磁場測定装置。 - 前記誘電相(18)は、強誘電体またはリラクサ材料から形成されている、
請求項3記載の磁場測定装置。 - 前記強誘電体は、チタン酸ジルコン酸鉛(PZT)、チタン酸バリウム、ニオブ酸カリウムナトリウム(KNN)またはチタン酸ナトリウムビスマス(NBT)の群からの材料である、
請求項4または5記載の磁場測定装置。 - 前記リラクサ材料は、マグネシウムニオブ酸鉛(PMN)またはランタンジルコニウムチタン酸塩(PLZT)の群からの材料である、
請求項5記載の磁場測定装置。 - 前記変調電圧を印加するための手段は、機械的な前記振動子の固有周期からゼロよりも大きい所定の差分量だけ異なっている前記変調電圧の周期を設定するために構成されている、
請求項2から7までのいずれか1項記載の磁場測定装置。 - 前記変調電圧を印加するための手段は、方形波電圧を出力するように構成されており、
前記方形波電圧は、前記圧電相(10)の周期的な非線形の歪みを引き起こし、前記圧電相(10)では、前記圧電相(10)における微分圧電係数が、正の値と負の値との間で往復するように切り換えられる、
請求項8記載の磁場測定装置。 - 前記変調電圧を印加するための手段は、前記変調電圧の周期を所定の間隔境界の間で自動的に変化させるように構成されている、
請求項8または9記載の磁場測定装置。 - 前記測定電圧を前記変調電圧の周期の関数として検出して、記録および/または出力するように、評価手段が構成されている、
請求項2から10までのいずれか1項記載の磁場測定装置。 - 前記評価手段は、前記測定電圧の局所的な最大値を特定し、特定された少なくとも1つの最大値の大きさおよび位置から、少なくとも1つの測定すべき磁場成分の振幅および周波数を推定するように構成されている、
請求項11記載の磁場測定装置。 - 前記磁歪相(14)は、強磁性層と反強磁性層とを交互に有する多層の積層体として構成されている、
請求項2から12までのいずれか1項記載の磁場測定装置。
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EP15170985.4A EP3104186B1 (de) | 2015-06-08 | 2015-06-08 | Magnetoelektrische magnetfeldmessung mit frequenzumsetzung |
EP15170985.4 | 2015-06-08 | ||
PCT/DE2016/100250 WO2016198042A1 (de) | 2015-06-08 | 2016-05-31 | Magnetoelektrische magnetfeldmessung mit frequenzumsetzung |
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US (1) | US10613159B2 (ja) |
EP (1) | EP3104186B1 (ja) |
JP (1) | JP6676663B2 (ja) |
KR (1) | KR20180016538A (ja) |
WO (1) | WO2016198042A1 (ja) |
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DE102018110511B3 (de) | 2018-05-02 | 2019-05-16 | Christian-Albrechts-Universität Zu Kiel | Mikrowellenresonator-Magnetfeldmessvorrichtung sowie Magnetfeldmessverfahren |
DE102019116779B3 (de) | 2019-06-21 | 2020-07-30 | Christian-Albrechts-Universität Zu Kiel | Messvorrichtung für schwache, langsam veränderliche Magnetfelder, insbesondere für biomagnetische Felder |
CN112379315B (zh) * | 2020-12-07 | 2022-03-25 | 青岛大学 | 一种适用于磁电耦合传感器的微弱直流磁场测量方法 |
CN113687277B (zh) * | 2021-10-26 | 2022-01-25 | 广东海洋大学 | 一种磁电复合材料传感器的测试方法及系统 |
CN118017223B (zh) * | 2024-04-03 | 2024-07-05 | 西北工业大学 | 一种微夹持式双频磁电天线及其制备方法和应用 |
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KR20150071428A (ko) * | 2013-12-18 | 2015-06-26 | 삼성전기주식회사 | 자전성 자기장 센서 및 그를 이용한 감지 장치 |
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- 2016-05-31 US US15/578,751 patent/US10613159B2/en active Active
- 2016-05-31 JP JP2017563513A patent/JP6676663B2/ja active Active
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Patent Citations (6)
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JPS4841688A (ja) * | 1971-09-27 | 1973-06-18 | ||
US6809516B1 (en) * | 1999-04-05 | 2004-10-26 | Spinix Corporation | Passive magnetic field sensors having magnetostrictive and piezoelectric materials |
US20040126620A1 (en) * | 2002-10-18 | 2004-07-01 | Dwight Viehland | Magnetoelectric magnetic field sensor with longitudinally biased magnetostrictive layer |
WO2010110423A1 (ja) * | 2009-03-26 | 2010-09-30 | 並木精密宝石株式会社 | 圧電磁歪複合型磁気センサ |
US8222898B1 (en) * | 2011-04-15 | 2012-07-17 | The United States Of America As Represented By The Secretary Of The Army | Method and apparatus for utilizing magnetic field modulation to increase the operating frequency of sensors |
JP2016500813A (ja) * | 2012-10-08 | 2016-01-14 | クリスティアン−アルブレヒツ−ウニヴェアズィテート ツー キールChristian−Albrechts−Universitaet zuKiel | 磁電センサ及び該センサの製造方法 |
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EP3104186A1 (de) | 2016-12-14 |
JP6676663B2 (ja) | 2020-04-08 |
KR20180016538A (ko) | 2018-02-14 |
EP3104186B1 (de) | 2020-09-16 |
WO2016198042A1 (de) | 2016-12-15 |
US10613159B2 (en) | 2020-04-07 |
US20180299514A1 (en) | 2018-10-18 |
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