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Abstract

A device includes a deformable shell that defines an inner space under a gas pressure higher than the atmospheric pressure. A flexible piezoelectric membrane is applied against an inner wall of the deformable shell under the effect of the pressure present in the inner space. The membrane is capable of generating electric energy under the effect of a deformation of the shell. An electric circuit is electrically connected to the piezoelectric membrane and includes an element for storing the electric energy that it generates and a rigid structure. Longilineal resilient elements for holding the electric circuit according to a predetermined position of the inner space are each arranged between the rigid structure of the electric circuit and the inner wall of the deformable shell and secured to the piezoelectric membrane and to the rigid structure.

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First Claim