| 摘要 |
<p>An electromagnetic field shielding device which is constituted of an electromagnetic field detecting coil (21) which detects an AC leakage electromagnetic field and a parallel resonance circuit (22-24) having a circuit constant which is decided in advance so that the frequency of an electromotive force induced in the coil (21) can be selected as the resonance frequency of the circuit (22-24). When the resistor (24) of the circuit (22-24) consumes energy, the intensities of a magnetic field and an electromagnetic field interlinked with the coil (21) are suppressed.</p> |
