Vasilios G. Chouvardas

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Tactation is the sensation perceived by the sense of touch, and is based on the skin's receptors. Touch is a common medium used by the general population and the sensory impaired. Tactile substitution can be used by the blind or deaf in order to: (a) enhance access to computer graphical user interfaces and (b) enhance mobility in controlled environments.(More)
The last years a growing body of research has been developed on tactile displays and interfaces, which can give physical form to digital information. In spite of the numerous tactile devices that have been constructed, the development of formal definition for tactile information still remains an open issue. In order for the software to better enhance the(More)
— In this paper we present the optimization of a Capacitive Micromachined Ultrasonic Transducer (CMUT) array that performs as a tactile display using an electrical equivalent circuit model and the SPICE program. The array implements a " pixel " of the display and is used to focus airborne ultrasound energy on the skin surface. The design of the array is(More)
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