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公开(公告)号：EP2320224B1
公开(公告)日：2019-03-13
申请号：EP09810096.9
申请日：2009-08-26
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2.发明公开
公开(公告)号：EP2772754A1
公开(公告)日：2014-09-03
申请号：EP12842781.2
申请日：2012-05-16
发明人： MAETANI, Toshio , KATO, Hiroharu
摘要： A method for measuring an apparent density of a metal powder includes holding a metal powder in a vessel, applying an alternating magnetic flux to the metal powder using an exciting coil disposed outside the vessel, detecting the alternating magnetic flux passed through the metal powder using a search coil disposed outside the vessel, and determining an apparent density of the metal powder from an amplitude of the detected alternating magnetic flux using a calibration curve representing a correlation between the apparent density of the metal powder and the amplitude of an alternating magnetic flux prepared in advance. The method enables to measure the apparent density of a metal powder with a high precision in an on-line and non-contact manner without stopping a process of producing a mixed powder or a process of producing a powder compact.
摘要翻译： 一种用于金属粉末的表观密度的测量方法包括：在容器中保持的金属粉末，适用于使用于血管以外作废弃处理励磁线圈交变磁通量，以金属粉末，检测通过使用金属粉末通过交变磁通 容器以外作废弃处理探测线圈，并且在使用表示金属粉末的表观密度和中制备的交变磁通量的幅度之间的相关性的校准曲线所检测到的交变磁通的振幅从金属粉末的表观密度的确定性采矿 提前。 该方法使得测量具有高精确度的金属粉末的在一上线和非接触方式的表观密度不停止生产的混合粉末或产生粉末压块的处理的处理。
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公开(公告)号：EP2772754B1
公开(公告)日：2019-11-13
申请号：EP12842781.2
申请日：2012-05-16
发明人： MAETANI, Toshio , KATO, Hiroharu
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公开(公告)号：EP2146202A1
公开(公告)日：2010-01-20
申请号：EP08792747.1
申请日：2008-08-20
摘要： A detection method for detecting a concavo-convex shape surface defect existing on a ferromagnetic metal comprises a step of sensing a signal attributed to strain of the concavo-convex shape surface defect having a size in a range of 0.5 to 6 µm. The signal is magnetic flux leaking from the ferromagnetic metal to which magnetic flux is applied. A detecting apparatus incorporates a magnetizer for magnetizing a ferromagnetic metal and a plurality of magnetic sensors arranged in the direction perpendicular to a traveling direction of the ferromagnetic metal to sense a signal attributed to strain of a concavo-convex shape surface defect having a size in a range of 0.5 to 6 µm. [Selected Drawing] FIG. 1
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5.发明公开
公开(公告)号：EP2320224A1
公开(公告)日：2011-05-11
申请号：EP09810096.9
申请日：2009-08-26
摘要： A magnetic material is magnetized with a direct current to a rotational magnetization region and an alternate current excitation is performed in a direction having a component orthogonal to a direction of the direct current magnetization, and a component of an alternate current magnetic field which is generated by an interaction with the magnetic material in a direction orthogonal to the direction of the direct current magnetization is measured. Due to such a measuring method, a local magnetic property of the magnetic material can be measured with high precision almost without being influenced by disturbances or the like.
摘要翻译： 磁性材料通过直流电磁化到旋转磁化区域，并且在具有与直流磁化方向正交的分量的方向上进行交流励磁，并且由直流磁化方向产生的交流磁场的分量 测量与磁性材料在与直流磁化方向正交的方向上的相互作用。 由于这种测量方法，几乎不受干扰等的影响，可以高精度地测量磁性材料的局部磁性。
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6.发明公开PERIODIC DEFECT DETECTING DEVICE AND METHOD FOR THE SAME 审中-公开VORRICHTUNG ZUR ERKENNUNG PERIODISCHER DEFEKTE UND VERFAHRENDAFÜR
公开(公告)号：EP2264446A1
公开(公告)日：2010-12-22
申请号：EP09726665.4
申请日：2009-03-27
IPC分类号： G01N27/83 , G01N21/892
CPC分类号： G01N21/892 , G01N21/8922 , G01N27/83 , G01N2021/8918
摘要： An apparatus for detecting periodic defect, has: a sensor 4; a small area selection means (72, 74) for separating a plurality of small areas whose area length is shorter than that of the area so that all distance intervals adjacent to one another are equal in a periodic defect arrangement direction to determine positions of the plurality of small areas, and selecting signals corresponding to the positions of the plurality of small areas from outputs from the sensor; an evaluation index calculation means 76 for calculating a similarity evaluation index between signal patterns among a plurality of signals selected by the small area selection means; a set value changing means (73, 75) for changing the positions of the small areas and the distance interval, and repeating computational processings of the small area selection means and the evaluation index calculation means; and a period judgment means 77 for judging the distance interval as a period when the evaluation index is higher than a value set beforehand. A method for detecting periodic defect has a signal inputting step, a small area selecting step, an evaluation index calculation step, a set value changing step, and a periodicity judging step.
摘要翻译： 一种用于检测周期性缺陷的装置，具有：传感器4; 一个小区域选择装置，用于分离区域长度小于区域长度的多个小区域，使得在周期性缺陷排列方向上彼此相邻的所有距离间隔相等，以确定多个区域的位置 并且从所述传感器的输出中选择与所述多个小区域的位置相对应的信号; 评估指标计算装置76，用于计算由小区域选择装置选择的多个信号之间的信号模式之间的相似度评估指数; 用于改变小区域和距离间隔的位置的设定值改变装置（73,75），并且重复小区域选择装置和评估指标计算装置的计算处理; 以及周期判断装置77，用于将距离间隔判定为评价指标高于预先设定的值的期间。 用于检测周期性缺陷的方法具有信号输入步骤，小区域选择步骤，评估指标计算步骤，设定值改变步骤和周期性判断步骤。
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