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1. 发明专利

JP2002094280A ACTIVE SHIELDING DEVICE 失效
公开(公告)号：JP2002094280A
公开(公告)日：2002-03-29
申请号：JP2000281311
申请日：2000-09-18
申请人： MAGBANG KK , TAKENAKA KOMUTEN CO
发明人： MATSUBA HIRONORI , KATO KAZUO , YAMAZAKI KEITA
IPC分类号： G01R33/02 , A61B5/055 , G01R33/42 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide an active shielding device that can obtain shielding performance over a wide frequency range even if the frequency of an external magnetic field is fluctuated, and at the same time prevents the shielding performance from easily deteriorating even if the position of the generation source of the external magnetic field changes. SOLUTION: When the external magnetic field is applied to a magnetic shielding body 3 made of a ferromagnetic material, magnetic sensors 5X, 5Y, and 5Z for detecting the size of a magnetic field merely in one direction are installed at a position (a center section on a wall surface) that can detect the synthetic magnetic field of the external magnetic field and the magnetic field due to the magnetization of the magnetic shielding body 3. Coils 6X1, 6X2, 6Y1, 6Y2, 6Z1, and 6Z2 are installed so that the magnetic field having the same direction as the magnetic-field detection direction of the magnetic sensor is generated. When the synthetic magnetic field detected by the magnetic sensor is changed, a controlling device 7 is provided, where the controlling device allows current for generating the magnetic field canceling the change to flow to the coils. In the controlling device 7, the relationship between the output of the magnetic sensor and the current that is allowed to flow to the coils is set so that the magnetic field at the center section in the magnetic shielding body is minimized.

2. 发明专利

JP2006214941A Instrument and method for measuring component contained in concrete 有权
标题翻译：用于测量混凝土中组分的仪器和方法
公开(公告)号：JP2006214941A
公开(公告)日：2006-08-17
申请号：JP2005029588
申请日：2005-02-04
申请人： Kri Inc , Takenaka Komuten Co Ltd , 株式会社Kri , 株式会社竹中工務店
发明人： UEDA TOMOAKI , TAKENAKA MAKOTO , FUJII HIDEMI , MINEGISHI SHIGEKI , HAGA AKIRA , YAMAZAKI KEITA , MITSUI TATEO , KATO KAZUO
IPC分类号： G01N27/02 , G01N27/22 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To provide an instrument and a method capable of inspecting nondestructively various characteristics such as a chloride concentration, a water content, an iron oxide content and a void ratio contained in concrete, and capable of inspecting a position of a reinforcement or pipe embedded in its inside. SOLUTION: An electric conductivity σ and a relative dielectric constant εr of the concrete are measured by a step 1 for measuring a real part R1 and an imaginary part X1 of an alternating current impedance Z; a step 2 imparting a proper initial value as the electric conductivity σ and a dielectric constant ε; a step 3 for calculating a real part R2 and an imaginary part X2 of an inter-electrode complex voltage by a mathematical model; a step 4 for finding a square error from the real part R1 and the imaginary part X1, and the real part R2 and the imaginary part X2, which are calculated values of the inter-electrode complex voltage, obtained by the step 3; a step 5 for determining whether the square error is smaller than a prescribed value or not; a step 6 for finding the electric conductivity σ and the dielectric constant ε to improve the square error to a smaller value; a step 7 for finding the relative dielectric constant εr by dividing the dielectric constant ε with a vacuum dielectric constant ε0; and a step 8 for determining the electric conductivity σ and the relative dielectric constant εr as measured values in f[Hz]. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够非破坏性地检查混凝土中含有的氯化物浓度，含水量，氧化铁含量和空隙率等各种特性的仪器和方法，并且能够检查在其内部嵌入一根钢筋或钢管。解决方案：通过步骤1测量混凝土的导电率σ和相对介电常数εr，用于测量交流电阻Z的实部R1和虚部X1; 给出适当的初始值作为电导率σ和介电常数ε的步骤2; 用于通过数学模型计算电极间复合电压的实部R2和虚部X2的步骤3; 从步骤3获得的实际部分R1和虚部X1以及作为电极间复合电压的计算值的实部R2和虚部X2找到平方误差的步骤4; 用于确定平方误差是否小于规定值的步骤5; 求出导电率σ和介电常数ε的步骤6，将平方误差提高到较小值; 通过将介电常数ε除以真空介电常数ε0来求出相对介电常数εr的步骤7; 以及用于将电导率σ和相对介电常数εr确定为f [Hz]中的测量值的步骤8。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004172151A Environmental magnetic noise shielding device 审中-公开
标题翻译：环境噪声屏蔽装置
公开(公告)号：JP2004172151A
公开(公告)日：2004-06-17
申请号：JP2002332488
申请日：2002-11-15
申请人： Takenaka Komuten Co Ltd , 株式会社竹中工務店
发明人： KATO KAZUO , YAMAZAKI KEITA , UEDA TOMOAKI , YOSHIZAWA MASATO
IPC分类号： G01R33/02 , A61B5/05 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To obtain an environmental magnetic noise shielding device which is lightweight, excellent in workability, superior in natural lighting properties and air permeability, and excellent in environmental magnetic noise shielding properties. SOLUTION: The frame-type environmental magnetic noise shielding device 10 is equipped with a reference magnetic sensor 14 which detects the predetermined prescribed direction component of the magnetic flux density of an environmental magnetic field, a canceling magnetic field generating coil 12 which is formed into a frame shape and capable of generating a canceling magnetic field while a current is fed to it, a shielding controlling means 16 which feeds a current to the canceling magnetic field generating coil 12 to generate a canceling magnetic field so as to make the detected value of the reference magnetic sensor 14 coincident with a predetermined reference value and to shield environmental magnetic noises. The reference magnetic sensor 14 and the shielding controlling means 16 are provided in one piece on the arrangement surface of the canceling magnetic field generating coil 12. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：为了得到重量轻，加工性优异，自然采光性和透气性优异，环境磁噪声屏蔽性优异的环境噪声屏蔽装置。解决方案：框式环境磁噪声屏蔽装置10配备有检测环境磁场的磁通密度的预定规定方向分量的基准磁传感器14，取消磁场产生线圈12 形成为框状，能够在供给电流的同时产生抵消磁场;屏蔽控制装置16，其将电流馈送到消除磁场产生线圈12，以产生抵消磁场，以便检测到参考磁传感器14的值与预定的参考值一致并屏蔽环境磁噪声。参考磁传感器14和屏蔽控制装置16一体地设置在消除磁场产生线圈12的布置表面上。版权所有（C）2004，JPO

4. 发明专利

JP2005294537A Panel-type coil, uniform magnetic field generator, gradient magnetic field generator and magnetic field canceling device 审中-公开
标题翻译：板式线圈，均匀磁场发生器，梯形磁场发生器和磁场取消装置
公开(公告)号：JP2005294537A
公开(公告)日：2005-10-20
申请号：JP2004107613
申请日：2004-03-31
申请人： Ichiro Sasada , Takenaka Komuten Co Ltd , 株式会社竹中工務店 , 一郎笹田
发明人： SASADA ICHIRO , YAMAZAKI KEITA , KATO KAZUO
IPC分类号： G01R33/421 , A61B5/05 , A61B5/055 , H01F7/20 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To secure the distribution of a uniform magnetic field and a linear gradient magnetic field in a wide range without bothering entrance into and exit out of a measuring space. SOLUTION: The panel-type coil is constituted by connecting in series a plurality of coils constituted by winding a wire in concentric circular shape or concentric angular shape on the same plane in respective normal/reverse directions, then, two sheets of panel-type coils are arranged so as to be opposed respectively, and a power supply is connected to respective panel-type coils. These might be arranged by four sheets of panel-type coils (two axes), or six sheets of panel-type coils (three axes). Then, the power supply is operated to produce the uniform magnetic field and the linear gradient magnetic field, which have reversed phase with respect to an environmental magnetic field having the gradient magnetic field and the uniform (equal) magnetic field. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了确保在宽范围内的均匀磁场和线性梯度磁场的分布，而不会打扰入射和离开测量空间。解决方案：面板式线圈是通过串联连接多个线圈而构成的，所述多个线圈通过在相同的正向/反向上在同一平面上缠绕同心圆形或同心角形，然后将两片板型线圈被布置为分别相对，并且电源连接到相应的面板型线圈。这些可能由四片面板式线圈（两轴）或六片面板式线圈（三轴）排列。然后，操作电源以产生相对于具有梯度磁场和均匀（相等）磁场的环境磁场具有反相的均匀磁场和线性梯度磁场。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2004349431A Environmental magnetic noise shielding device 有权
标题翻译：环境噪声屏蔽装置
公开(公告)号：JP2004349431A
公开(公告)日：2004-12-09
申请号：JP2003144193
申请日：2003-05-21
申请人： Japan Science & Technology Corp , Kri Inc , Takenaka Komuten Co Ltd , 株式会社Kri , 株式会社竹中工務店 , 科学技術振興事業団
发明人： UEDA TOMOAKI , YAMAZAKI KEITA , KATO KAZUO , TAKAYAMA MASAAKI , MURAMATSU KAZUHIRO , HAGA AKIRA , YOSHIZAWA MASATO
IPC分类号： G01R33/02 , G01R33/04 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a light magnetic shielding device which has high shielding performance with respect to environmental magnetic noise of DC or AC, especially, unsteady environmental magnetic noise due to movement or vibration of a geomagnetic convergent object which is formed of a high permeability magnetic material and is positioned nearby, is superior in workability, and is provided with lighting property and permeability. SOLUTION: The frame-type environmental magnetic noise shielding device is provided with: a coil 2 constituted in a frame 1; a magnetism detector 3 detecting time change of magnetic flux density orthogonal with a face of the coil 2; a control unit 4 controlling supply of current to the coil 2 based on a signal detected by the magnetism detector 3 and cancel of environmental magnetic noise in the magnetism detector 3; and a movable mechanism 5 adjusting a relative position relation between the frame 1 and the magnetism detection part 3 so that environmental magnetic noise in a prescribed region except for the magnetism detector 3 can be shielded. They are integrated with the frame 1. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种相对于DC或AC的环境磁噪声具有高屏蔽性能的光磁屏蔽装置，特别是由于形成的地磁会聚物体的移动或振动引起的不稳定的环境磁噪声的高磁导率磁性材料并位于附近，具有优异的可加工性，并具有照明性和透气性。框架式环境磁噪声屏蔽装置设置有：框架1中构成的线圈2; 检测与线圈2的面正交的磁通密度的时间变化的磁检测器3; 控制单元4，其基于由磁检测器3检测的信号和磁力检测器3中的环境磁噪声的消除来控制向线圈2的电流供给; 以及调整框架1和磁检测部3之间的相对位置关系的可移动机构5，从而可以屏蔽除磁检测器3之外的规定区域中的环境磁噪声。它们与框架1相结合。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004356263A Method for arranging magnetic sensor and active magnetic shielding device 有权
公开(公告)号：JP2004356263A
公开(公告)日：2004-12-16
申请号：JP2003150417
申请日：2003-05-28
申请人： Takenaka Komuten Co Ltd , 株式会社竹中工務店
发明人： YAMAZAKI KEITA , KATO KAZUO
IPC分类号： H05K9/00
摘要： PROBLEM TO BE SOLVED: To accurately cancel a magnetic field arriving from the outside and penetrating into the internal space of a magnetic shielding body.
SOLUTION: A canceling coil is arranged near the magnetic shielding body on the basis of the detection result of the magnetic field by a magnetic sensor disposed near an external form-shaped magnetic shielding body which is composed of a magnetic material, and in which a cylindrical upper box body is connected to the top face of an approximately box-shaped base-section box body. In the canceling coil, the magnetic sensor is arranged in a specified region (a region indicated by hatching and a space above the region) surrounded by a first virtual plane being orthogonal to the arrival direction of the magnetic field as a canceling object by the canceling coil, and being arranged on the upstream side in the arrival direction of the box body so as to be brought into contact with the upper box body; a second virtual plane being orthogonal to the arrival direction and being disposed on the downstream side in the arrival direction of the box body at a specified distance from the upper box body and the top face of the base-section box body, when the magnetic field for canceling the magnetic field arriving from the outside and penetrating into the internal space of the magnetic shielding body is generated.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2002355229A METHOD TO ANALYZE MAGNETIC FIELD AND INSTRUMENT TO VISUALIZE CURRENT DISTRIBUTION 失效
公开(公告)号：JP2002355229A
公开(公告)日：2002-12-10
申请号：JP2001164393
申请日：2001-05-31
申请人： JAPAN SCIENCE & TECH CORP , KANSAI RES INST , TAKENAKA KOMUTEN CO
发明人： YOSHIZAWA MASATO , NAKAI KENJI , KAWAZOE KOHEI , UEDA TOMOAKI , YAMAZAKI KEITA , KATO KAZUO , NAKAMURA YOSHIHIKO
IPC分类号： G01R33/035 , A61B5/05
摘要： PROBLEM TO BE SOLVED: To provide a method to analyze a magnetic field and an instrument to visualize current distribution in an opening composite magnetic field analyzer using a spatial filter, which can be improved in spatial resolution of current density distribution in an area of interest without increasing the number of magnetic field sensors on an observation plane. SOLUTION: The method to analyze a magnetic field and the instrument to visualize current distribution comprise a magnetic field measuring means constituted of a magnetic field sensor place in a plural number of coordinates, a first calculating means to calculate magnetic field distribution data in a higher number of coordinates by interpolation processing, a second calculating means to calculate a current density vector component of an arbitrary voxel in an area of interest based on the calculated magnetic field distribution, a third calculating means to calculate the absolute value of a current density, a fourth calculating means to modify a plurality of tomographic image data to structural image data, and a display to display a three-dimensional display.

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