| 摘要 |
<p>The invention is directed to a magnet valve having a magnet coil and a magnet armature, which are coaxially surrounded by a secondary coil that measures the inductions arriving in the magnet coil. According to the invention, those inductions that arise in the magnet coil not only from a current flowing there but also by the motion of the magnet armature in the magnet coil are measured while the current is turned off. As a result, the instant at which the magnet armature begins its return stroke is detected exactly.</p> |
