Articles techniques et présentations

The transducer's construction used for current measurement in medium voltage power lines for current values kA is shown. The transducer involves magnetic circuit with a gap in which a MEMS structure with a movable cantilever is placed. The beam is made of silicon with a NiFe layer. The beam with the ferromagnetic layer is deflected due to effecting magnetic field. The deflection of the beam is measured by the optical fiber sensor. The numerical models were prepared and computed with COMSOL Multiphysics® software. The ferromagnetic core geometry was made by a work plane, basic figures and extrude operation. The simulations considered an influence of material’s anisotropy and placing a silicon beam with a NiFe film in the air-gap.