| 摘要 |
The circuit includes an electromagnet with a body (1) and a mobile armature (2) separated by an air gap of surface (S). A coil (3) with N windings is placed on the electromagnet. Voltage (U1,2,3) applied to the coil terminals generate and induction (B) in the magnet which in turn produces a force (F) actuating the armature. An elastic stop is placed between the electromagnet body and armature. The stop absorbs the kinetic energy of the incoming armature and then releases part of it back to the armature which is moving in the opposite direction with slight loss of speed.
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