| 摘要 |
<p>The invention aims to provide an electric current transducer, which can more accurately detect magnetic force generated by current flowing in a current path to be detected and restrain characteristic deviation. The electric current transducer is provided with electromagnetic conversion components and a magnetic core for converging magnetic flow and is characterized by possessing a substrate provided with a circular hole for communication of a current path to be detected (CB); the magnetic core is provided with a first magnetic piece (M1) arranged on one side of the substrate, of a sheet and arc shape and formed by a conductor and a second magnetic piece (M2) arranged on the other side of the substrate, of a sheet and arc shape and formed by a conductor; when observed in a direction of a shaft (Bj) of the current path to be detected (CB), the first magnetic piece and the second magnetic piece are configured to be a circular shape in a mode that the other end part (M1b) of the first magnetic piece and the other end part (M2b) of the second magnetic piece are overlapped; electromagnetic conversion components are arranged between the other end part (M1b) of the first magnetic piece and the other end part (M2b) of the second magnetic piece are overlapped.</p> |
