| 摘要 |
<p>The triggering head comprises a case containing a battery connected by means of an electronic switching device to the terminals of an output intended for connection of the device to be triggered and a control circuit fed by the battery and comprising several double-pole inputs mounted in series and a starting switch with external actuation. The control circuit functions to make the electronic switching device conductive when, the starting switch having been actuated, the potential difference appearing across the end poles of the inputs exceeds a predetermined value.</p> |
