公开(公告)号：EP2905628A1

公开(公告)日：2015-08-12

申请号：EP13840992.5

申请日：2013-09-24

申请人： Alps Green Devices Co., Ltd.

发明人： MATSUE, Ken ,  TAMURA, Manabu

IPC分类号： G01R15/20

摘要： [Object] A purpose is to provide a current sensor capable of accurately measuring a current to be measured even if the frequency of the current to be measured changes.
[Solution] A current sensor 101 includes a first current path 12 including a first flat-shaped portion 12f, and a first magnetoelectric conversion element 13 arranged on the first current path 12 and configured to detect magnetism generated when a current to be measured flows through the first current path 12, wherein the current sensor 101 measures the current to be measured of a device to which the first current path 12 is connected, a first conductive convex portion 12w is provided, in the first current path 12, in a direction in which the current to be measured flows, and the first magnetoelectric conversion element 13 is arranged at a position on the first current path 12, at which a minimum frequency magnetic flux density serving as a magnetic flux density in a case of passing the current to be measured of a minimum frequency used in the device and a maximum frequency magnetic flux density serving as a magnetic flux density in a case of passing the current to be measured of a maximum frequency used in the device substantially coincide with each other.

摘要翻译： 本发明的目的是提供一种电流传感器，即使待测电流的频率改变，也能够精确地测量待测电流。 电流传感器101包括：第一电流路径12，其包括第一扁平形状部分12f;以及第一磁电转换元件13，其被布置在第一电流路径12上并且被配置为检测当待测电流流过时产生的磁力 在第一电流路径12中，电流传感器101测量与第一电流路径12连接的装置的待测量电流，在第一电流路径12中沿着第一电流路径12的方向设置第一导电凸部12w 其中要测量的电流流动，并且第一磁电转换元件13被布置在第一电流路径12上的位置处，在该位置处，在通过电流的情况下用作磁通量密度的最小频率磁通密度 测量在装置中使用的最小频率，并且在通过最大测量电流的情况下测量最大频率磁通密度作为磁通密度 装置中使用的频率基本上彼此一致。