DISPOSITIF RADIOFREQUENCE MAGNETIQUE A REPONSE VARIABLE

摘要

The device (2) has a beam (7) with transverse parts, where one part is made of piezoelectric material. Transversal actuation electrodes (11b) are associated to the material to apply constraint on the arm. A magnetic element made of uniaxial magnetic material is directly arranged on the arm, where permeability of the element varies according to the constraint. A wire strip (20) is placed on a side of the beam, and electromagnetically coupled with the element. The strip has a central part (22) fixed on an upper surface of the element opposite to a lower surface of the element facing the arm.