| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology of measuring a current of one of a plurality of bus bars extended in parallel, while improving SN ratio of a magnetoelectric transducer.SOLUTION: A current sensor 100 includes a first bus bar 3a to be measured, a second bus bar 2a not to be measured, which is extended in parallel with the first bus bar and has a thin and long cross section, and a magnetoelectric transducer 5. A magnetic sensitive surface 5a of the magnetoelectric transducer 5 faces a wide side face of the second bus bar 2a. A plane including the magnetic sensitive surface 5a is arranged to cross a side face of the first bus bar 3a. The second bus bar 2a is larger in lateral width at both ends than in the longitudinal center. |
