Materials properties simulation by means of haptic devices is one of the most significant issues in the design of new human- computer interfaces to support virtual prototypes interaction in numerous product design activities. Notwithstanding the several research attempts, a very natural perception of materials has not been achieved yet. We present a novel tactile display. It combines both mechanical and electrotactile approaches to simulate natural tactile sensations. In order to enhance experience acoustic and visual cues are integrated. A signal generation method allows correlating materials properties and simulating signals according to the characteristics of fingertip mechanoreceptors. The final scope is making users perceive the object’s surface roughness, slickness and texture coarseness. Research results are the developed simulation method and the detailed design of the whole tactile display. The preliminary prototype is under construction.

Design of a tactile display to support materials perception in virtual environments / Mengoni, M.; Colaiocco, B.; Germani, M.; Peruzzini, Margherita. - ELETTRONICO. - (2011), pp. 227-228. ((Intervento presentato al convegno Virtual Reality Conference, IEEE VR 2011 tenutosi a Singapore nel 19-23 March.

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