Electromagnetic actuator including the means for controlling self-adaptive operation and method using such an actuator.

摘要

The actuator (100) has a processing unit (2) acting on control units (21) based on mechanical stress (F) applied on the actuator. A mobile armature (12) is mounted inside a magnetic fixed yoke (11). The processing unit comprises self-adaptive control units with measurement units that measure total resistance of a trip coil (3) from reference electric current and/or reference voltage. The trip coil is connected to the control units that are connected to the self-adaptive control units by varying current intensity in the coil by the mechanical stress. An independent claim is also included for a method for determining mechanical stress applied on an electromagnetic actuator.