Abstract: The disclosure relates to a method of manufacturing vibratory elements, comprising forming on a substrate a multilayer structure by an integrated circuit manufacturing method, the multilayer structure comprising an element susceptible of vibrating when it is subjected to an electrical signal, and electrodes for transmitting an electrical signal to the vibratory element, the vibratory element comprising a mechanical coupling face that is able to transmit to control element vibrations perceptible by a user.

Abstract: The disclosure relates to a method of manufacturing vibratory elements, comprising forming on a substrate a multilayer structure by an integrated circuit manufacturing method, the multilayer structure comprising an element susceptible of vibrating when it is subjected to an electrical signal, and electrodes for transmitting an electrical signal to the vibratory element, the vibratory element comprising a mechanical coupling face that is able to transmit to control element vibrations perceptible by a user.

Abstract: An automatic monitoring system of storage batteries housed in battery rooms comprises an acquisition satellite associated with a sensor to measure various physical parameters representative of the operating state of a pilot battery cell, notably the density, temperature and electrolyte level, a data concentrator located outside the corresponding battery room and arranged to communicate by radioelectric waves with the acquisition satellite, and a centralized processing unit connected to the concentrator by a two-way cabled communication network.