Virtualizing the Sense of Touch

Researchers Develops High-Resolution, Wearable Electrotactile Rendering Device that Virtualizes the Sense of Touch

City University of Hong Kong

October 20, 2022

A wearable tactile rendering system developed by researchers at the City University of Hong Kong (CityU) and the Robotics X Laboratory at China's Tencent mimics the sense of touch with high spatial resolution and a rapid response rate. The thin, flexible electro-tactile actuator can generate pressure, vibration, and texture roughness in high fidelity. Its operating voltage is less than 30 V due to the use of a high-frequency alternating simulation strategy instead of direct-current pulses, and spatial resolution of the simulators is increased by rendering tactile sensations between physical electrodes instead of at electrode locations. The system could be used in Braille displays, virtual and augmented reality applications and games, and for users of thick protective suits or gloves, like astronauts, firefighters, and deep-sea divers.  Detailed