Collection systems vibrational energy incorporating a piezoelectric energy collection mode parametric curvature

摘要

A collection device vibrational energy, comprising: a resonant beam having properties of cross section, a fundamental resonance frequency in unaprimera direction of curvature and a frequency parametric mode in a second direction curvaturaperpendicular to said first direction of curvature, wherein said properties of cross section seseleccionan to adjust said fundamental resonance frequency at a first desired frequency and ajustardicha frequency in parametric mode to a second desired frequency, said resonant beam a materialpiezoeléctrico to generate electrical energy in response to curvature of said resonant beam dedichas each first and second directions of curvature.