Bioinspired liquid metal based sensing system for compliance detection

In this paper, we report a fully stretchable liquid metal based sensor system for compliance detection. The system is composed of a strain sensor layer, a gap layer with a hole in the center and a pressure sensor layer from top to bottom. Inspired from the human tactile system, the pressure sensor and strain sensor work collaboratively to detect the force and deformation simultaneously, from which the compliance of the contact material can be derived.