| 摘要 |
<p>An electrostatic acoustic converter comprising two parallel insulating perforated plates having their inner surfaces covered with a conductive layer. Each layer has a signal terminal for connection with a source of sound frequency signal. Between the perforated plates, there is fixed a flexible current-conductive membrane isolated from the conductive layers and having a terminal for connection with a source of polarizing voltage. At least on one perforated plate, the conductive layer has a high electrical resistance.</p> |
