| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device and a method for measuring current by using hall sensors without iron core in order to remove surrounding interference and the like when measuring current which flows in conductive cable. <P>SOLUTION: This is a current measuring method designed so as to measure the current flowing through the conductive cable by using a plurality of hall sensors without iron core. In the method, the hall sensors are installed in the conductive cable or arranged around it, magnetic flux density of the magnetic field generated by the current flowing through the conductive cable is measured; each of the hall sensors is used so as to generate output voltage depending on the magnetic flux density of the magnetic field; statistical operation is carried out on the output voltage of each hall sensor to generate statistical voltage; then the current flowing through the conductive cable is measured based on this statistical voltage. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
