| 摘要 |
The invention relates to an electromechanical actuator 100 for hearing applications comprising one or more permanent magnets 10 and one or more magnetically permeable members 20 arranged to forma stator 50 and armature 70 arranged to provide one or more magnetic flux circuits 80, 80' configured to give rise, in the armature seat 52, to a position of unstable equilibrium for the armature 70 along the longitudinal A-A' axis and regions either side of the position of unstable equilibrium along the longitudinal A-A' axis where the armature applies a destabilization-driven force to the compliant member that decreases the effective rigidity of the compliant member that retains to armature in a neutral position. The invention also relates to a hearing aid system incorporating the electromagnetic actuator.
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