发明名称 電流センサ
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a current sensor capable of preventing occurrence of variation in detection sensitivity due to difference in position of a measuring object. <P>SOLUTION: A first cross-sectional area of a first coil part wound with a conducting wire 22 in a first coil part 4a is equal to a second cross-sectional area of a second coil part wound with the conducting wire 22 in a second coil part 4b, and a first winding number of the conducting wire 22 for a bobbin 21a is equal to a second winding number of the conducting wire 22 for a bobbin 21b. When a length L10 along an annular part 2 for current detection in the range where a conducting wire 12 is not wound in the annular part 2 for current detection is defined as a first length, the sum of a first product of the first cross-sectional area and the first winding number and a second product of the second cross-sectional area and the second winding number is equal to a third product of a third cross-sectional area of a body-side coil part and a third winding number of the conducting wire 12 in the range of the first length in the body-side coil part. <P>COPYRIGHT: (C)2012,JPO&INPIT</p>
申请公布号 JP5646203(B2) 申请公布日期 2014.12.24
申请号 JP20100100476 申请日期 2010.04.26
申请人 日置電機株式会社 发明人 芦田 豊
分类号 G01R15/18;H01F5/02;H01F38/20 主分类号 G01R15/18
代理机构 代理人
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