| 摘要 |
<p>The patent application relates to a multi-winding Epstein device. The multi-winding Epstein device according to an embodiment of the present invention comprises: a plurality of primary wires in which the number of revolutions is different; a plurality of secondary wires corresponding to the primary wire one by one; a test piece which mutually passes through the first and second wires and forms a magnetic closed circuit by being connected by a predetermined standard; a switch unit which connects one among the primary wires with a power supply unit in accordance with an inputted control signal; and a control unit which sets a frequency of power outputted by the power supply unit and produces the control signal in response to the frequency of the set power.</p> |
