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11. 发明授权

US08797023B2 Coercive force specifying apparatus 有权
标题翻译：矫顽力指定装置
公开(公告)号：US08797023B2
公开(公告)日：2014-08-05
申请号：US14001697
申请日：2011-03-07
申请人： Masafumi Suzuki , Tomonari Kogure , Mayumi Nakanishi
发明人： Masafumi Suzuki , Tomonari Kogure , Mayumi Nakanishi
IPC分类号： G01R33/16
CPC分类号： G01R33/16 , G01R33/1215 , G01R33/123
摘要： Provided is a coercive-force specifying apparatus capable of creating a demagnetization curve for each divisional area of a coercive-force distributed magnet without breaking the coercive-force distributed magnet and of specifying an average coercive force for each divisional area precisely.A coercive force specifying apparatus of the present invention includes: a yoke including an insertion space into which a coercive-force distributed magnet is to be inserted; a magnetizing coil; a search coil that detects a magnetization change when the magnetic field is applied to the coercive-force distributed magnet; and a tracer that creates a demagnetization curve on a basis of a voltage value generated due to the magnetization change. The end face is provided with two or more loop-shaped thread grooves bored therein, the search coil being provided in each thread groove. The coercive-force distributed magnet includes a divisional area defined so as to correspond to each of the two or more search coils, and a voltage value due to a magnetization change detected by each search coil is transmitted to the tracer for creation of a magnetization curve at a corresponding divisional area as well as for specification of an average coercive force.
摘要翻译：提供一种矫顽力指定装置，其能够在不破坏矫顽力分布磁体的同时产生矫顽力分布磁体的每个分区的去磁曲线，并且精确地指定每个分区的平均矫顽力。本发明的矫顽力指定装置包括：轭，其包括插入空间，矫顽力分布磁体将被插入到该插入空间中; 磁化线圈; 搜索线圈，当磁场施加到矫顽力分布磁体时检测磁化变化; 以及基于由于磁化变化而产生的电压值产生退磁曲线的示踪器。端面设置有两个或多个在其中钻孔的环形螺纹槽，搜索线圈设置在每个螺纹槽中。矫顽力分布磁体包括限定为与两个或更多个搜索线圈中的每一个对应的分区，并且由每个搜索线圈检测到的由磁化变化引起的电压值被传送到示踪器，以产生磁化曲线在相应的分区，以及用于规定平均矫顽力。

12. 发明申请

US20130335064A1 COERCIVE FORCE SPECIFYING APPARATUS 有权
标题翻译：强化力指定装置
公开(公告)号：US20130335064A1
公开(公告)日：2013-12-19
申请号：US14001697
申请日：2011-03-07
申请人： Masafumi Suzuki , Tomonari Kogure , Mayumi Nakanishi
发明人： Masafumi Suzuki , Tomonari Kogure , Mayumi Nakanishi
IPC分类号： G01R33/16
CPC分类号： G01R33/16 , G01R33/1215 , G01R33/123
摘要： Provided is a coercive-force specifying apparatus capable of creating a demagnetization curve for each divisional area of a coercive-force distributed magnet without breaking the coercive-force distributed magnet and of specifying an average coercive force for each divisional area precisely. A coercive force specifying apparatus of the present invention includes: a yoke including an insertion space into which a coercive-force distributed magnet is to be inserted; a magnetizing coil; a search coil that detects a magnetization change when the magnetic field is applied to the coercive-force distributed magnet; and a tracer that creates a demagnetization curve on a basis of a voltage value generated due to the magnetization change. The end face is provided with two or more loop-shaped thread grooves bored therein, the search coil being provided in each thread groove. The coercive-force distributed magnet includes a divisional area defined so as to correspond to each of the two or more search coils, and a voltage value due to a magnetization change detected by each search coil is transmitted to the tracer for creation of a magnetization curve at a corresponding divisional area as well as for specification of an average coercive force.
摘要翻译：提供一种矫顽力指定装置，其能够在不破坏矫顽力分布磁体的同时产生矫顽力分布磁体的每个分区的去磁曲线，并且精确地指定每个分区的平均矫顽力。本发明的矫顽力指定装置包括：轭，其包括插入空间，矫顽力分布磁体将被插入到该插入空间中; 磁化线圈; 搜索线圈，当磁场施加到矫顽力分布磁体时检测磁化变化; 以及基于由于磁化变化而产生的电压值产生退磁曲线的示踪器。端面设置有两个或多个在其中钻孔的环形螺纹槽，搜索线圈设置在每个螺纹槽中。矫顽力分布磁体包括限定为与两个或更多个搜索线圈中的每一个对应的分区，并且由每个搜索线圈检测到的由磁化变化引起的电压值被传送到示踪器，以产生磁化曲线在相应的分区，以及用于规定平均矫顽力。

13. 发明申请

US20130002240A1 METHOD FOR DETERMINING COERCIVITY OF COERCIVITY DISTRIBUTION MAGNET 有权
标题翻译：用于确定合格分布磁体的合格性的方法
公开(公告)号：US20130002240A1
公开(公告)日：2013-01-03
申请号：US13583681
申请日：2010-03-15
申请人： Tomonari Kogure , Mayumi Nakanishi
发明人： Tomonari Kogure , Mayumi Nakanishi
IPC分类号： G01R33/16
CPC分类号： G01R33/10 , G01R31/34 , G01R33/1215 , G01R33/1223
摘要： According to the present invention, a method for determining coercivity of a coercivity distribution magnet, whereby coercivity of each portion in the coercivity distribution magnet can be determined with good accuracy without, for example, cutting the coercivity distribution magnet into pieces and thus quality assurance can be achieved with good accuracy, is provided.The coercivity determination method of the present invention comprises the following steps: a step of dividing a plane of a coercivity distribution magnet into a plurality of virtual plane segmented regions, placing the coercivity distribution magnet in a demagnetization-field-applying device, providing detectors for the plane segmented regions, and creating a demagnetization loss curve for each plane segmented region; a step of determining the minimum coercivity and the mean coercivity; a step of creating a coercivity distribution graph based on three hypotheses; and a step of determining the coercivity at an arbitrary position on the plane of the coercivity distribution magnet with the use of the coercivity distribution graph based on which the coercivity for each plane segmented region is determined.
摘要翻译：根据本发明，一种用于确定矫顽磁力分布磁体的矫顽力的方法，由此可以在没有例如将矫顽力分布磁铁切割成碎片的情况下以高精度确定矫顽力分布磁体中各部分的矫顽力，从而可以确保质量保证提供良好的准确性。本发明的矫顽力测定方法包括以下步骤：将矫顽力分布磁体的平面分割为多个虚拟平面分割区域，将矫顽力分布磁铁置于退磁场施加装置中，提供检测器平面分割区域，并为每个平面分割区域产生去磁损耗曲线; 确定最小矫顽力和平均矫顽力的步骤; 基于三个假设创建矫顽力分布图的步骤; 以及使用确定每个平面分割区域的矫顽力的矫顽力分布图来确定矫顽力分布磁体的平面上的任意位置的矫顽力的步骤。

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