Lamination type stretch sensor for making different layers generates displacement along different directions when stretched

Abstract

A lamination type stretch sensor includes a first elastic insulating layer, a first elastic conductive layer, an elastic dielectric layer, a second elastic conductive layer and a second elastic insulating layer sequentially piled together thereon. The first elastic conductive layer includes a plurality of first coupling sections and a plurality of first connecting sections. The second elastic conductive layer includes a plurality of second coupling sections and a plurality of second connecting sections disposed between the second coupling sections. The elastic dielectric layer is deposited between the first elastic conductive layer and the second elastic conductive layer. When the composite lamination type stretch sensor is stretched, the first elastic conductive layer and the second elastic conductive layer respectively generate displacements along different directions to make the coupling ratio between the first coupling sections and the second coupling sections varies simultaneously to accordingly obtain a corresponding capacity, so as to determine the deformation of the lamination type stretch sensor in accordance with the corresponding capacity.