▎ 摘　　要

NOVELTY - The sensor has a dielectric layer formed between an upper electrode and a lower electrode. A conductive film is fixed between the upper electrode and the lower electrode. The dielectric layer is provided with phase-change hydrogel with micro-structure and a controllable ion. The conductive film is provided with a conductive graphene oxide film or a conductive indium tin oxide film. USE - Ion adjustable hydrogel based dual-mode capacitive sensor for a wearable device, man-machine interaction and internet-of-things. ADVANTAGE - The sensor has simple preparation technique, low cost and better application scene, and integrates a contact sensing mode and a non-contact sensing mode. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an ion adjustable hydrogel based dual-mode capacitive sensor utilizing method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an ion adjustable hydrogel based dual-mode capacitive sensor. (Drawing includes non-English language text).