| 摘要 |
<p>An audible warning device (W), comprising fixed coil (C), a moving part (M), electronic interruption means (T) electrically connected to the fixed coil ( C) to consent or prevent the flow in the coil of an energization current (Ic), the moving part performing an attraction movement towards the fixed coil (F) as a consequence of the flow of said energization current (Ic) and performing a release movement towards a rest position as a consequence of the interruption of said flow, characterized in that the audible warning device includes electronic processing means (PROC) to control the electronic interruption means (T) and includes detection means (B) to provide the processing means with a first signal (Sin) bearing information correlated with the timing of the movements of the moving part, the electronic processing means (PROC) controlling said interruption means (T) on the basis of said information (Sin).</p> |
