专利检索_..补偿漏磁场专利检索_..补偿漏磁场专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
81	超导量子干涉器磁传感系统	CN201420091512.9	2014-02-28	CN203720339U	2014-07-16	王永良; 徐小峰; 孔祥燕; 谢晓明
本实用新型提供一种超导量子干涉器磁传感系统，包括：包含第一超导量子干涉器件的第一磁传感器，用于实时调整第一超导量子干涉器件的锁定工作点，并在每次锁定后的一个磁通量程范围内感应并输出与外部磁通的变化相对应的第一感应信号；与第一磁传感器处于同一外部磁通环境中的第二磁传感器，用于感应并输出所处磁通环境的中与外部磁通连续变化相对应的第二感应信号；信号补偿处理单元，用于根据第一感应信号和第二感应信号各自所反映的磁通之差，来确定各磁通量程范围内的磁通相对于预设的磁通量程范围的磁通，并根据所得到的各相对磁通来补偿第一感应信号在失锁期间的变化，将经补偿后的第一感应信号予以输出。以实现本实用新型在长时间里能够连续测得高精度的感应信号。
82	SENSOREINHEIT ZUM ERFASSEN EINES MAGNETFELDES	PCT/EP2022/057873	2022-03-25	WO2022207476A1	2022-10-06	STUERNER, Felix Michael
Es wird eine Sensoreinheit (400) zum Erfassen eines Magnetfeldes vorgeschlagen, die umfasst: - eine Lichtquelle (403) zum Erzeugen von Anregungslicht (407), - mindestens einen ersten Sensor (401) zum Bestimmen eines Messsignales eines Objektes (300), und - einen zweiten Sensor (402) zur Bestimmung eines Hintergrundmagnetfeldes, wobei der erste Sensor (401) als diamantbasierter NV-Magnetometer ausgebildet ist und einen hochsensitiven Diamanten (404) mit mindestens einem negativ geladenen NV-Zentrum, das eine fluoreszierende Wirkung hat und somit Fluoreszenz (408) emittiert, umfasst.
83	磁界検出装置及び磁界検出方法	PCT/JP2016/081102	2016-10-20	WO2017077870A1	2017-05-11	田邊　圭
【課題】環境磁界を検出するためのセンサを別途設けることなく、検出磁界を選択的に検出する。【解決手段】磁界に応じた出力信号Ｓ１を生成する磁界検出部１０と、出力信号Ｓ１から所定の周波数成分を抽出し、所定の周波数成分に基づいてキャンセル信号Ｓ２を生成する第１の信号生成部２０と、キャンセル信号Ｓ１に基づいて磁界検出部１０にキャンセル磁界を与える第１の磁界発生部４０と、キャンセル磁界が与えられた磁界検出部１０の出力信号Ｓ１に基づいて検出信号Ｓ３を生成する第２の信号生成部３０とを備える。本発明によれば、出力信号の周波数成分に基づいてキャンセル信号を生成し、キャンセル信号を用いて磁界検出部に第１のキャンセル磁界を与えていることから、環境磁界を検出するためのセンサを別途設ける必要がない。これにより部品点数が削減されることから、小型化及び低コスト化を実現できる。
84	METHOD FOR DESIGNING COIL SYSTEMS FOR GENERATION OF MAGNETIC FIELDS OF DESIRED GEOMETRY, A MAGNETIC RESONANCE IMAGING OR MAGNETOENCEPHALOGRAPHY APPARATUS WITH A COIL ASSEMBLY AND A COMPUTER PROGRAM	PCT/FI2011/050249	2011-03-24	WO2011117471A1	2011-09-29	SIMOLA, Juha; TAULU, Samu
The present invention introduces a method, apparatus and computer program for magnetic resonance imaging or magnetoencephalography applications in order to control currents of a coil assembly (20), and thus achieving desired magnetic fields precisely in the measuring volume (21). The approach is an algebraic method where a field vector is generated for the test currents of each coil (20). Vector and matrix algebra is applied and a linear set of equations is formed. Field components and their derivatives up to the desired order can be taken into account. Principal component analysis or independent component analysis can be applied for determination of the dominant external interference components. By checking the condition value for the matrix (33, 45), it is possible to investigate whether a reasonable solution of currents for desired magnetic fields is possible to achieve. Finally, solved currents can be installed into a current supply unit (29) feeding the coils of the assembly (20). The invention can be applied as an active compensation feature for different interference shapes in the MEG application (25), or for the precise creation of the fields and gradients in the MRI application (24).
85	자기 센서에서 자기 간섭의 능동적 밸런싱/소거를 위한 시스템 및 방법	KR1020177007856	2015-09-25	KR102198156B1	2021-01-05	쑤지안; 세이볼드아론
제1 자기필드를가지는제1 자석을포함하는감지시스템. 일실시예에서, 감지시스템은또한제1 자기필드를수용하기위해구성된제1 고정자와제1 자기필드를수용하기위해구성된제2 고정자를포함한다. 제1 컬렉터는제1 고정자로부터제1 자기필드를수집하기위해구성되며, 제2 컬렉터는제2 고정자로부터제1 자기필드를수집하기위해구성되고, 자기감지소자는제1 자기필드를감지하기위해구성된다. 또한감지시스템은제2 자기필드를가지는제2 자석, 제3 자기필드를가지는제3 자석을포함한다. 제3 자석은제3 자기필드가제2 자기필드에대칭하도록위치설정된다.
86	磁場計測装置、磁場計測方法、磁場計測プログラム	JP2019032548	2019-08-21	JPWO2020040168A1	2020-08-27	中村威信; 岡武茂樹; 森安嘉貴; 片岡誠
各々が磁気抵抗素子と磁気抵抗素子の両端に配置された磁気収束板とを有する磁気センサを複数有し、磁場を3軸方向で検出可能な複数の磁気センサセルを三次元に配列して構成される磁気センサアレイと、磁気センサアレイによって計測された計測データを取得する磁場取得部と、計測データによって示される磁場の空間分布を、正規直交関数の空間分布を持つ磁場を磁気センサアレイで検出したときに複数の磁気センサのそれぞれが出力する信号ベクトルを基底ベクトルとして信号分離する信号空間分離部と、を備える磁場計測装置を提供する。
87	人体内で磁性体によって生成された磁束密度を検出するための、装置の作動方法	JP2016520368	2014-06-06	JP6440698B2	2018-12-19	ベネディクトハートヴィヒ; ペーターニーポート; ハンス−ヨアヒムシュティラー; シュテフェンユンギンガー

88	磁気センサ装置	JP2015253279	2015-12-25	JP2017116448A	2017-06-29	OTAKE NOBUAKI; OGASAWARA TOSHIMITSU
【課題】周期的ノイズである外乱磁界をキャンセルしてSN比を改善し、磁気媒体物の検出が確実になされる磁気センサ装置を提供する。【課題の解決手段】磁気センサ装置は、永久磁石4の異極面側に位置するようにして、永久磁石4によりバイアス磁界が加えられる2個の磁気センサ5a,5bを、磁気媒体物8の搬送方向と平行に配置し、各磁気センサ5a,5bは、定電圧間に磁気抵抗素子と前記定電圧間を分圧する電気的素子を直列接続し、その接続部から検出信号を取り出すとともに、永久磁石4から放出される磁力線が貫通した位置の磁界ベクトルのX方向成分の絶対値が等しくなるよう配置してなり、磁気媒体物8は一方の磁気センサ5aの永久磁石4とは反対面側を搬送し、各磁気センサ5a,5bの検出信号を演算回路19で加算演算または差動演算して外乱磁界26分をキャンセルして出力する。【選択図】図6
89	Magnetic field compensation	JP2010128582	2010-06-04	JP5437918B2	2014-03-12	ワラウエルステフェン

90	Acceleration sensor	JP2006512833	2005-04-28	JP4896712B2	2012-03-14	英児加古; 道治山本; 吉晃幸谷; 義信本蔵; 正樹森; 巧浅野; 弘栄玄番; 尚樹石川

91	Magnetic field measuring device	JP2003139754	2003-05-19	JP3642061B2	2005-04-27	塚本　　晃; 啓二塚田; 宏一横澤; 明彦神鳥; 大介鈴木

92	Magnetic field measuring device	JP25988599	1999-09-14	JP3379488B2	2003-02-24	啓二塚田; 豪宮下; 明彦神鳥

93		JP54760398	1998-04-29	JP2001524213A	2001-11-27

94		JP51942196	1995-12-14	JPH10511457A	1998-11-04

95		JP29497293	1993-11-25	JP2752575B2	1998-05-18	SAKURAI BUICHI; KASAHARA OKUKI

96	MAGNETIC CORRECTING CIRCUIT AND IMAGE DISPLAY DEVICE USING IT	JP31982594	1994-12-22	JPH08179020A	1996-07-12	MONMA AKIO; YAMANOBE YASUNARI; SATO TAKASHI
PURPOSE: To detect an infinitesimal external magnetic field with high accuracy by providing a pair of amorphous magnetic substance wires in parallel, applying the bias magnetic fields in opposite directions to them, feeding high-frequency currents to both wires, and outputting the difference between the voltages of output ends. CONSTITUTION: External magnetic detection sections 103 each constituted of an amorphous magnetic substance wire 101 and a bias magnetic field applying coil 102 are provided in parallel, and high-frequency currents of about 10-300kHz are fed to the amorphous magnetic substance wires 101. Bias magnetic fields having the same intensity and opposite directions are generated on the coils 102, the difference between the voltages at both ends of the wires 101 is detected, and the intensity and direction of the external magnetic field in the longitudinal direction of the detection sections 103 are obtained. The signal indicating the external magnetic field outputted from a differential amplifier 109 is fed to a control circuit 2 as the signal of a magnetic sensor l, and the magnetic correcting signal corresponding to it is outputted to coils 3 from the control circuit 2 to correct the external magnetic field. The external magnetic field can be corrected by the magnetic sensor 1, and the landing drift of the electron beam of an, image display device can be prevented.
97	VEHICLE	JP26930494	1994-11-02	JPH08130803A	1996-05-21	FUJII YASUO; IRIE YASUO; YAMANAKA YUKIFUMI; YOKOYAMA YUKIO
PURPOSE: To accurately detect the external magnetic field of a vehicle mounted with an engine and battery. CONSTITUTION: A vehicle which is driven by an engine E mounted on the vehicle and provided with an AC generator 26 which generates electric power for charging a battery 34 and a magnetic field detecting sensor which detects the external magnetic field of the vehicle is provided with a synchronous status detecting means A which detects that the fluctuating frequency of the current generated by the generator 26 reaches or approaches a set frequency which gives an adverse influence on the detecting operation of the magnetic field detecting sensor and charge stop means B which stops the supply of the charging current to the battery 34 from the generator 26 through a feeder line 31 in accordance with the results of detection of the detecting means A.
98		JP7936389	1989-03-29	JPH0795098B2	1995-10-11

99	MAGNETIC-FIELD GENERATING DEVICE IN PLANNED SPACE	JP654691	1991-01-23	JPH07120486A	1995-05-12	IRU PETORASU YOHANESU RADEMAAK
PURPOSE: To generate a magnetic field in a predetermined space. CONSTITUTION: A magnetic pickup 16 exists in a position where an earth magnetic field is not hindered, and modulators 5, 6 and 7 are connected to an AC generator 17, and modulate an alternating current by depending on intensity of a magnetic filed measured in the three different coordiate directions by the magnetic pickup 16. Outputs of the modulators 5, 6 and 7 are amplified, and are supplied to mutually vertical exciting coils 18, 19 and 20, and an electric current in proportion to these is impressed on compensating coils 21, 22 and 23. Outputs of detectors 37, 38 and 39 projecting to a mercury spherical surface 1 are sent to an adding transformer 33 through host voltage transformation auxiliary transformers 27, 28 and 29, and are also added to a phase sensitive demodulator 35 through a band-pass filter 34.
100	SUPERCONDUCTING MAGNETOMETER	JP5036193	1993-03-11	JPH06265610A	1994-09-22	TOJO NAOYUKI
PURPOSE:To obtain a superconducting magnetometer which is capable of preventing bad influence of magnetism due to attitude change because of turning of an airplane or rotation of a rotary mechanism and having small estimation errors of a coefficient. CONSTITUTION:Earth magnetism measuring magnetometers 9A, 9B, 9C that measure three components magnetism and incident angles of the earth, a current source 10 that generates currents for changing incident angles of magnetic fields based on the outputs of the magnetometers 9A, 9B, 9C and magnetic field generation coils 8A, 8B, 8C that change directions of magnetic fields entering SQUID's (superconducting quantum interference device) 2A, 2B, 2C by using currents of the current source 10 are added to an ordinary type magnetometer. When an unknown value is calculated, magnetic fields entering the SQUID's 2A, 2B, 2C are electrically changed independenly of attitude change because of turning of an airplane or rotation of a rotary mechanism.

1 2 3 4 5 6 7 8 9 10

IPRDB

热门服务

关于我们

友情链接

联系方式