The contact between the fingertip and an object is formed by a collection of micro-scale
junctions, which collectively constitute the real contact area. This real area of contact is only …

Ultrasonic surface-haptic touchscreens produce compelling tactile sensations directly on the
users' fingertips. The tactile sensations stem from the modulation of friction produced by …

Modulation of the frictional force of a fingertip sliding over a surface-haptic device can
produce compelling sensations of texture and relief. The virtual sensation is particularly …

In recent years, various tactile displays having the ability to change their surface friction have
been proposed. These displays can express many types of textures and shapes that the …

In this article, several modes are controlled simultaneously both in phase and amplitude on
an haptic display. To achieve this, modulation/demodulation control combined with mixed …

Skin integrity assessment is a very important matter in the nursing care, especially for
patients with low mobility. However, the methodology of skin analysis is limited by a lack of …

The study of skin mechanical impedance is a clue to analyse its health. We use a Langevin
Transducer at 60kHz to excite the skin. In return we observe the acoustic forces generated …

Haptic technology offers users a unique way of interacting with the virtual world, as it allows
direct information transfer between the interfaces and the human through the sense of touch …

An ever-increasing number of human-machine interfaces have embraced touchscreens as
their central component, such as in smartphones, laptops, terminals, etc. Their success has …

L'écran tactile représente aujourd'hui la quintessence des interfaces homme machine.
Cependant, l'interaction avec cette surface plane demande une attention visuelle forte, en …