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ArrayTac: A Closed-Loop Piezoelectric Tactile Platform for Continuously Tunable Shape, Stiffness, and Friction

ArrayTac is a closed-loop piezoelectric tactile platform that can simultaneously and continuously render three tactile dimensions—shape, stiffness, and friction—on a 4×4 actuator array. Each unit integrates a three-stage micro-lever amplifier and end-effector Hall-effect feedback, achieving up to 5 mm displacement, an array refresh rate above 500 Hz, and a closed-loop bandwidth of 123 Hz.

Part of the event: Research on ArrayTac Closed-Loop Piezoelectric Tactile Platform

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