| 摘要 |
<p>PURPOSE:To enable the detection of a variety of ranges of current by oppositely arranging two sensors comprised of detecting coils wound around magnetic cores while sandwiching a conductor between the two sensors and enabling a magnetic field passing through the magnetic cores of the sensors to be adjusted by an auxiliary magnetic core provided so as to be capable of a position adjustment or an attitude adjustment. CONSTITUTION:A conductor 4a wherein a current to be detected flows is buried in a lateral direction in a sensor casing 6 made of a resin. Sensors 3a and 3b comprised of detecting coils 2 wound around amorphous cores 1 are buried in a vertical direction on both sides of the conductor 4a. A cylindrical resin piece 8 is fit in the cylindrical recessed portion 6a of the casing 6. An auxiliary magnetic core 5a made of an amorphous material is buried on the bottom of the groove 8a of the piece 8 and fixed thereto by a resin. A power supply and an oscilloscope are connected to both ends of the conductor 4a and the output terminal of a connector 11, respectively, and a current in a predetermined range is made flow from the power supply and an adjustment is conducted by turning the piece 8. Then, the piece 8 is fixed to the recessed portion 6a by Loctite. Thus, an optimum adjustment is conducted on the sensors 3a and 3b.</p> |
