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1. 发明专利

JP2007033027A Method of diagnosing ferrous material in concrete structure with ferrous material embedded therein 有权
标题翻译：在混凝土结构中检测材料的方法与其中嵌入的材料
公开(公告)号：JP2007033027A
公开(公告)日：2007-02-08
申请号：JP2005211986
申请日：2005-07-22
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , NAKAYAMA SATORU , IKEDA MASANORI
IPC分类号： G01N27/82 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide a method which enables the easy inspection or deterioration diagnosis of the reinforcing rod of a reinforced concrete structure using a magnetic impedance effect sensor.
SOLUTION: A sensor is constituted by providing a coil 7x for a bias magnetic field to a magnetic impedance effect element 1x so as to detect the output of the element through a detection circuit. This sensor is used to scan the surface of a ferrous material embedded concrete structure C while passing an exciting current through the magnetic impedance effect element to apply voltage to the bias magnetic field coil to inspect the ferrous material (g) or diagnosing the deterioration of the ferrous material (g).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够使用磁阻抗效应传感器容易地检查或劣化诊断钢筋混凝土结构的钢筋混凝土结构的方法。解决方案：通过向磁阻效应元件1x提供用于偏置磁场的线圈7x来构成传感器，以便通过检测电路检测元件的输出。该传感器用于扫描含铁材料嵌入式混凝土结构C的表面，同时使励磁电流通过磁阻效应元件，以向偏置磁场线圈施加电压以检查铁质材料（g）或诊断铁损黑色金属（g）。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007322125A Magnetic impedance effect sensor and method for detecting external magnetic field 审中-公开
标题翻译：磁阻效应传感器及检测外部磁场的方法
公开(公告)号：JP2007322125A
公开(公告)日：2007-12-13
申请号：JP2006149097
申请日：2006-05-30
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , TAKAGI SAKAE , NAKAYAMA SATORU
IPC分类号： G01R33/06
摘要： PROBLEM TO BE SOLVED: To provide a magnetic impedance effect sensor capable of accurately detecting external magnetic field, by satisfactorily eliminating the influence of external noise and offset changes, and to provide an external magnetic field detection method by the use of the magnetic impedance effect sensor.
SOLUTION: The terminal voltage of a magnetic impedance effect element 1 is demodulated with a detector 3 under the action of the external magnetic field and its detected output is amplified with an operational amplifier 4. An output terminal 5, a negative feedback coil 6, and a control coil 7 are included in the sensor. A filter 7 which extracts a specific frequency component from the output of the operational amplifier circuit 4 and feeds them back to the control coil 7, and a magnetic field for canceling the external magnetic field component of the specific frequency is made to act, and a detection output under the cancellation is set as the detected output.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供能够通过令人满意地消除外部噪声和偏移变化的影响来精确地检测外部磁场的磁阻抗效应传感器，并且通过使用磁性来提供外部磁场检测方法阻抗效应传感器。解决方案：磁阻抗效应元件1的端子电压在外部磁场的作用下用检测器3解调，其检测输出用运算放大器4放大。输出端子5，负反馈线圈 6，控制线圈7包含在传感器中。滤波器7从运算放大器电路4的输出提取特定频率分量并将其馈送到控制线圈7，并且使用于消除特定频率的外部磁场分量的磁场作用，并且检测输出被设置为检测输出。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006064552A Corrosion/thinning inspection method of iron-based wall back surface 有权
标题翻译：基于铁基墙面的腐蚀/细化检测方法
公开(公告)号：JP2006064552A
公开(公告)日：2006-03-09
申请号：JP2004247783
申请日：2004-08-27
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , NAKAYAMA SATORU
IPC分类号： G01N27/72 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide a corrosion/thinning inspection method of an iron-based wall back surface, capable of easily inspecting corrosion or thinning on the iron-based wall inner surface from the outer surface of the wall with high precision.
SOLUTION: A coil 3 for a bias magnetic field is attached to a magnetic impedance effect element 1, and an exciting current is made to flow by a high-frequency exciting power source 2 into a magnetic impedance effect element 1, while a bias magnetic field is applied. A magnetometric sensor, for detecting the terminal voltage of the element 1 by a detection circuit 4 and using it as a sensor output, is moved along the surface of the iron-based wall w, and the exciting current (carrier wave) is modulated by corrosion information, generated by a change of the bias magnetic field caused by the change in the magnetic resistance of the wall w caused by an internal surface corrosion. The modulated wave is outputted from the magnetic impedance effect element 1, and the modulated wave is demodulated by a demodulation circuit 4, to thereby acquire corrosion/thinning information.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供铁基壁背表面的腐蚀/变薄检查方法，能够以高精度容易地从壁的外表面检测铁基壁内表面的腐蚀或变薄。解决方案：用于偏置磁场的线圈3附接到磁阻效应元件1，并且激励电流被高频激励电源2流动到磁阻效应元件1中，而施加偏置磁场。用于通过检测电路4检测元件1的端子电压并将其用作传感器输出的磁力计传感器沿铁基壁w的表面移动，并且激励电流（载波）被腐蚀信息，由内壁表面腐蚀引起的壁面磁阻变化引起的偏磁场变化产生。调制波从磁阻效应元件1输出，调制波由解调电路4解调，从而获得腐蚀/变薄信息。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2007003509A Method and apparatus for diagnosing degradation of steel framed structure 有权
标题翻译：用于诊断钢框架结构退化的方法和装置
公开(公告)号：JP2007003509A
公开(公告)日：2007-01-11
申请号：JP2006025186
申请日：2006-02-02
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , NAKAYAMA SATORU , IZAWA KAZUYUKI
IPC分类号： G01N27/72 , G01R33/02 , G01R33/12
摘要： PROBLEM TO BE SOLVED: To provide a method for diagnosing a degradation of a steel framed structure, which can easily and precisely inspect a defect such as a corrosion or the like existing inside a wall of the steel framed structure through the outer surface of the wall.
SOLUTION: A defect detecting device is equipped with magnetic impedance effect elements being arranged in parallel and each having a bias field coil and a plurality of detecting channels each of which detects an output of each element through a detector circuit. A surface to be inspected of the steel framed structure is scanned with the magnetic impedance effect elements being kept close to the surface to be inspected, by using the defect detecting device. The wall of the steel framed structure becomes a portion of a magnetic field circuit which is the bias field generated by the bias field coil, and the strength of the bias field varies in accordance with the degree of corrosion/reduction in the backside of the wall, and changes in outputs of the magnetic impedance effect elements correlate with the degree of corrosion/reduction in the backside of the wall. Therefore, the degree of corrosion/reduction in the backside of the wall can be determined from the changes in the outputs.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于诊断钢框架结构的劣化的方法，其可以容易且精确地检查存在于钢框架结构的壁内的诸如腐蚀等的缺陷，通过外表面的墙。解决方案：缺陷检测装置配备有并联布置的磁阻抗效应元件，每个具有偏置场线圈和多个检测通道，每个检测通道通过检测器电路检测每个元件的输出。通过使用缺陷检测装置，将磁阻抗效应元件保持靠近被检查表面进行扫描，检查钢框架结构的表面。钢框架结构的壁成为由偏磁场线圈产生的偏磁场的磁场电路的一部分，偏压场的强度根据壁的背面的腐蚀/还原程度而变化磁阻效应元件的输出变化与壁背面的腐蚀/还原程度相关。因此，壁的背面的腐蚀/还原程度可以根据输出的变化来确定。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005274351A Method and sensor for detecting conductor defect in electric wire 有权
标题翻译：用于检测电线中导体缺陷的方法和传感器
公开(公告)号：JP2005274351A
公开(公告)日：2005-10-06
申请号：JP2004088138
申请日：2004-03-25
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , WAKU HIDEKI , NAKAYAMA SATORU , IKEDA MASANORI
IPC分类号： G01R31/02 , G01N27/82
摘要： PROBLEM TO BE SOLVED: To detect a defect based on a peripheral circuit magnetic field distribution change in a sufficiently narrow range to simplify work, when detecting the defect in any conductor element wire out of the plurality of element wires in an insulation-coated electric wire stranded with the plurality of element wires, and provided with an insulation-coating layer on a strand conductor, based on the distribution change in a peripheral circuit magnetic field in no element wire defect of the peripheral circuit magnetic field based on an electrification current in the strand conductor. SOLUTION: This method/device detects the change in the peripheral circuit magnetic field in a portion separated from a defective portion or the change in the peripheral circuit magnetic field in substantial one pitch of range of strand in the strand conductor. In a using sensor, two magnetic impedance effect elements of which the magneto-sensitive direction are a circumference concentric to the electric wire and a right-angled direction, for example, with 180° of angle in the periphery of the electric wire, while separated with an equal distance from the electric wire center, are connected in series to make magneto-sensitive direction brought into reverse polarity, and outputs from the magnetic impedance effect elements connected in series serves as a sensor output. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了简化工作，为了检测出基于外围电路磁场分布变化的缺陷，当在绝缘层中检测出多根元素线中的任何导体元件线中的缺陷时，基于电气化的外围电路磁场的元素线缺陷的外围电路磁场的分布变化，在绞线导体上设置有绝缘涂层的多根元素线的被覆电线，绞线导体中的电流。解决方案：该方法/装置检测在缺陷部分中分离的部分中的外围电路磁场的变化或在绞线导体中的绞合线的实质的一个间距中的外围电路磁场的变化。在使用传感器中，磁感应方向是与电线同心的圆周和直线方向的两个磁阻抗效应元件，例如在电线周围具有180°的角度，同时分离与电线中心的距离相等，串联连接使得磁敏方向变为相反极性，串联连接的磁阻效应元件的输出作为传感器输出。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2007205888A Inspection method of iron-based structure, and magnetic impedance effect sensor 有权
标题翻译：铁基结构检测方法及磁阻效应传感器
公开(公告)号：JP2007205888A
公开(公告)日：2007-08-16
申请号：JP2006025183
申请日：2006-02-02
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , NAKAYAMA SATORU , IZAWA KAZUYUKI
IPC分类号： G01N27/82 , G01N27/72 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To provide a method for accurately and easily inspecting an iron-based structure with a magnetic impedance effect sensor.
SOLUTION: A sensor having a magnetic impedance effect element is moved along the iron-based structure while the exciting current is carried to the magnetic impedance effect element and bias magnetic field obtained by superimposing an alternating current component on a direct current component. The iron-based structure serves as part of a magnetic circuit with respect to the bias magnetic field, the intensity of the bias magnetic field varies according to the degree of a flaw/corrosion/thickness reduction of the iron-based structure, and the degree of a defect of the iron-based structure is inspected according to the output variation.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用磁阻效应传感器精确且容易地检测铁基结构的方法。解决方案：具有磁阻效应元件的传感器沿着铁基结构移动，同时将励磁电流传送到磁阻效应元件，并通过将交流分量叠加在直流分量上而获得的偏磁。铁基结构相对于偏置磁场作为磁路的一部分，偏置磁场的强度根据铁基结构的缺陷/腐蚀/厚度减小程度而变化，并且程度根据输出变化检查铁基结构的缺陷。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006329855A Degradation diagnosis device of iron-based structure 有权
标题翻译：基于铁素体结构的降解诊断装置
公开(公告)号：JP2006329855A
公开(公告)日：2006-12-07
申请号：JP2005155212
申请日：2005-05-27
申请人： Sii Nanotechnology Inc , Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , エスアイアイ・ナノテクノロジー株式会社 , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , TAKAGI SAKAE , NAKAYAMA SATORU , IKEDA MASANORI
IPC分类号： G01N27/82
摘要： PROBLEM TO BE SOLVED: To provide a degradation diagnostic device of an iron-based structure, capable of easily inspecting a defect, such as corrosion on the inner surface of a wall of the iron-based structure from the outer surface of the wall with ample accuracy.
SOLUTION: A defect detector has a detection circuit that has a coil for a biased magnetic field on a magnetic impedance effect element and detects the output of the element through a detection circuit, and makes it scan while the magnetic impedance effect element is close to an inspected surface. The defect detector has a flexible board section elastically deformed along the inspected surface, and the magnetic impedance effect element and coil for biased magnetic field are mounted to the flexible board section.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种铁基结构的劣化诊断装置，能够容易地从铁基结构的外表面检测铁基结构的壁的内表面的腐蚀等缺陷墙壁具有足够的精度。解决方案：缺陷检测器具有检测电路，该检测电路具有用于磁阻抗效应元件上的偏置磁场的线圈，并且通过检测电路检测元件的输出，并且在磁阻抗效应元件为靠近被检查的表面。缺陷检测器具有沿检查面弹性变形的柔性基板部，并且用于偏置磁场的磁阻效应元件和线圈安装到柔性板部。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006337039A Defect-detecting method of metal body, and scanning type magnetic detector 有权
标题翻译：金属体的缺陷检测方法和扫描型磁性探测器
公开(公告)号：JP2006337039A
公开(公告)日：2006-12-14
申请号：JP2005158751
申请日：2005-05-31
申请人： Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , MURANAGA YOSUKE , IZAWA KAZUYUKI
IPC分类号： G01N27/83 , G01R33/02
摘要： PROBLEM TO BE SOLVED: To sufficiently detect a defect of a magnetic metal body, using a magnetic impedance effect type sensor by a magnetic leakage flux testing method.
SOLUTION: Demagnetization or magnetization processing is applied so that the magnetization state of the metal body is made uniform. Then, a magnetic detector, having a coil for applying a magnetic field to the metal body and the magnetic impedance effect type sensor for detecting magnetic leakage flux at the defect part of the metal body, scans the surface of the metal body, while applying the magnetic field to it by the coil. Even if the metal body is distorted locally and magnetically, it will locally become magnetized by remanence, and the magnetic leakage flux noise occurs, the demagnetization or magnetic processing is applied to make the magnetization state uniform so that the magnetic impedance effect type sensor does not react to this, and the defect is detected using the magnetic impedance effect type sensor by the magnetic leakage flux testing method. Thus, the influence of magnetic leakage flux noise by the remanence is eliminated, and the defect parts of the metal body can be detected at original high sensitivity, based on the magnetic impedance effect.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了充分地检测磁性金属体的缺陷，使用磁阻抗效应型传感器通过磁漏试验方法。解决方案：应用退磁或磁化处理使金属体的磁化状态均匀。然后，具有用于向金属体施加磁场的线圈的磁性检测器和用于检测金属体的缺陷部分的漏磁通的磁阻抗效应型传感器，在施加金属体的表面的同时，线圈对它的磁场。即使金属体在局部和磁性方面发生变形，也会通过剩磁而局部变磁，发生漏磁通噪声，进行去磁或磁加工使磁化状态均匀，磁阻效应型传感器不对此进行反应，通过磁漏检测方法利用磁阻效应型传感器检测缺陷。因此，消除了通过剩磁的漏磁通噪声的影响，并且基于磁阻抗效应可以以原始的高灵敏度检测金属体的缺陷部分。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006250921A Electric current sensor and electric current detection method 有权
标题翻译：电流传感器和电流检测方法
公开(公告)号：JP2006250921A
公开(公告)日：2006-09-21
申请号：JP2006025182
申请日：2006-02-02
申请人： Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , TAKAGI SAKAE
IPC分类号： G01R15/20
摘要： PROBLEM TO BE SOLVED: To provide an electric current sensor for highly accurately detecting that an electric current flows in a printed wiring board by using magnetic impedance effect elements. SOLUTION: This electric current sensor is used for scanning a surface of an apparatus or equipment to detect an electric current flowing in the surface of the apparatus or equipment. The two magnetic impedance effect elements 1a and 1b are provided so that they are parallel disposed and their magnetism sensing directions are opposite to each other. Outputs of the respective effect elements are demodulated by demodulation circuits 3a and 3b. The current sensor provided with a demodulation/amplification circuit for differentially amplifying demodulation outputs thereof by a differential amplification circuit 4 is moved across a current path under detection. External noises such as earth magnetism are eliminated based on the symmetry of sensor outputs with the current path between while eliminating internal noises occurring in the demodulation circuits by means of differential amplification, making it possible to measure the electric current with high accuracy. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电流传感器，用于通过使用磁阻效应元件来高精度地检测电流在印刷线路板中流动的电流传感器。解决方案：该电流传感器用于扫描设备或设备的表面以检测在设备或设备的表面中流动的电流。两个磁阻抗效应元件1a和1b被设置为使得它们平行布置，并且它们的磁感应方向彼此相反。各个效应元件的输出由解调电路3a和3b解调。具有用于差分放大电路4的解调输出的解调/放大电路的电流传感器在检测到的电流路径上移动。基于传感器输出的对称性，通过差分放大消除了解调电路中发生的内部噪声，从而消除了诸如地磁的外部噪声，从而可以高精度地测量电流。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005249679A Sensor for detecting conductor defect of electric wire 有权
标题翻译：用于检测电线导体缺陷的传感器
公开(公告)号：JP2005249679A
公开(公告)日：2005-09-15
申请号：JP2004062708
申请日：2004-03-05
申请人： Tohoku Electric Power Co Inc , Uchihashi Estec Co Ltd , 内橋エステック株式会社 , 東北電力株式会社
发明人： TOYODA KAZUMI , IZAWA KAZUYUKI , WAKU HIDEKI
IPC分类号： G01R31/02 , G01N27/82 , G01R33/12
摘要： PROBLEM TO BE SOLVED: To achieve sensor compactness in a sensor used for a method for detecting conductor defects of electric wires on the basis of changes in distributions of magnetic fields of a circumferential circuit to magnetic fields of a reference circumferential circuit at the absence of conductor defects on the basis of a conductor current through the electric wires. SOLUTION: The sensor is used for the method for detecting conductor defects of electric wires on the basis of changes in distributions of magnetic fields of a circumferential circuit to magnetic fields of a reference circumferential circuit at the absence of conductor defects on the basis of a conductor current through the electric wires. A magnetic sensor element is an MR element, a Hall element, a flux gate sensor, or the like. Output characteristics based on the magnetic sensor element have linear characteristics of which the polarity is determinable. A maximum magnetic-sensitive direction of the magnetic sensor element 1 is turned in a direction at a right angle to a circumferential direction of a circle (c) concentric with an electric wire 8. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了实现用于检测电线导体缺陷的方法的传感器的传感器紧凑度，其基于周向电路的磁场与基准圆周电路的磁场的分布的变化基于通过电线的导体电流不存在导体缺陷。
解决方案：传感器用于在不存在导体缺陷的情况下，根据圆周电路的磁场与参考圆周回路的磁场分布的变化来检测电线的导体缺陷的方法的导体电流通过电线。磁传感器元件是MR元件，霍尔元件，磁通门传感器等。基于磁传感器元件的输出特性具有极性可确定的线性特性。磁传感器元件1的最大磁敏方向在与电线8同心的圆（c）的圆周方向成直角的方向转动。（C）2005，JPO＆NCIPI

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