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Centre National De La Recherche Scientifique

Université Grenoble Alpes

Informatique De Securite

Francis Cannard

Yohan Payan

Nicolas Vuillerme

Bruno Diot

Yohann Payan

Christophe Lavarenne

Olivier Chenu

A device and method for measuring the pressure exerted at different points of a flexible, pliable and/or extensible fabric capable of being worn as a garment, lapel, or the like, which provides three stacked layers including a first insulating layer comprising an arrangement of insulating fibers and at least one row of at least one conductive yarn in contact with a first surface of a piezoresistive layer of fibers of a piezoresistive material, and a second insulating layer comprising an arrangement of insulating fibers, including at least one row of at least one conductive yarn, in contact with a second surface of the piezoresistive layer, and an electronic circuit capable of measuring the electric resistance variation when a pressure is exerted on the fabric, the pressure being a function of the resistance variation.

Device for measuring pressure from a flexible, pliable, and/or extensible object made from a textile material comprising a measurement device

The present invention relates to a device for measuring the pressure and/or the tension exerted at different points of a flexible, foldable and/or extensible textile material capable of being used as a garment, lapel, or the like; said device is remarkable in that it includes, on the one hand, at least one sensor obtained from a single layer (), formed of an arrangement of at least three types of fibers, piezoresistive fibers forming piezoresistive areas (), conductive fibers forming electrically-conductive areas (), and insulating fibers forming electrically-insulating areas () and, on the other hand, an electronic circuit () capable of measuring the electric resistance variation of the piezoresistive areas submitted to one or several forces.

Device intended for measuring pressure from a flexible, foldable, and/or extendable object made of a textile material and comprising a measurement device

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Beaune, France

Francis Cannard