Augmentation of material property by modulating vibration resulting from tapping

Authors:
Taku Hachisu;Michi Sato;Shogo Fukushima;Hiroyuki Kajimoto
Affiliations:
The University of Electro-Communications, Chofu, Tokyo, Japan,JSPS, Japan;The University of Electro-Communications, Chofu, Tokyo, Japan,JSPS, Japan;The University of Electro-Communications, Chofu, Tokyo, Japan,JSPS, Japan;The University of Electro-Communications, Chofu, Tokyo, Japan,Japan Science and Technology Agency, Japan
Venue:
EuroHaptics'12 Proceedings of the 2012 international conference on Haptics: perception, devices, mobility, and communication - Volume Part I
Year:
2012

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Abstract

We present a new haptic augmented reality system that modulates the perceived stiffness of a real object by changing the perceived material with vibratory subtraction and addition. Our system consists of a stick with a vibrotactile actuator and a pad with an elastic sheet. When a user taps the pad, the innate vibration resulting from the tapping is absorbed by the elastic surface. Simultaneously, the vibrotactile actuator provides the intended vibration, which represents a modulated perceived material property such as rubber, wood, or aluminum. The experimental results showed that the participants were able to discern the three materials by tapping.