Patent ID: 8576536

Claim:
A device for protecting an electronic printed circuit board, said electrical printed circuit board comprising at least two layers, wherein the device comprises: a conductive part uniformly spread on an insulator layer, the entirety comprising the conductive part and the insulator layer forming a capacitive support presenting a uniform electrical field over the whole surface of one of the layers of the electronic printed circuit board, said capacitive support being placed on the whole surface and being configured to deliver a reference capacitance for the whole surface; a capacitive measurement microprocessor electrically connected to said capacitive support, said microprocessor being configured to detect a variation in capacitance of said capacitive support for said whole surface; and a transmitter configured for transmitting a piece of information representing said variation of capacitance when an absolute value of a difference between a capacitance measured by said capacitive measurement microprocessor and said reference capacitance exceeds a predetermined threshold.