A stretchable and strain-unperturbed pressure sensor for motion-interference-free tactile monitoring on skins

Abstract

Existing types of stretchable pressure sensors have an inherent limitation of the interference of the stretching to the pressure sensing accuracy. We present a new design concept for a highly stretchable and highly sensitive pressure sensor that can provide unaltered sensing performance under stretching, which is realized through the creation of locally and biaxially stiffened micro-pyramids made from an ionic elastomer.