Fluidic wire touch sensors

Abstract

A wearable sensor device includes a liquid metal wire that includes an elongated tube with an internal cavity having a uniform cross-sectional geometry, the internal cavity is at least partially filled with liquid metal. The wearable sensor device further includes detection circuitry to detect a change in an electrical attribute of the liquid metal wire based on a temporary change in the cross-sectional geometry, and generate sensor data to identify an event associated with a wearer of the wearable device based on the temporary change in the cross-sectional geometry.