| 摘要 |
<p>PURPOSE:To ensure an assured prevention for the howling by installing two coils wound round cores each orthogonally and then flowing the high-frequency current to these coils intermittently and with a time shift to secure the radiation of the induction magnetic flux as well as to obtain the reception output. CONSTITUTION:For inductive transmitter 1, coil 3A wound round core 2A and coil 3B wound round core 2B are installed orthogonally to each other, and then the high-frequency current intermittent and with a time shift to each other is flown to the both coils to secure the radiation of the induction magnetic flux. While inductive receiver 11 features coil 13 wound round core 12. And when transmitter 1 comes close to receiver 11 in a certain range, the reception output is obtained regardless of the angular relation between the transmission and reception coils. As a result, the howling can be prevented in an assured way.</p> |
