Section: New Results

Coupling between Electrovibration and squeeze filmfor tactile stimulation

Electrovibration and squeeze film effect are two different principles which modify user perception of a surface. The first is generated by a polarization of a finger approaching a high voltage supplied plate, and the latter by an ultrasonic vibrating plate. Their compatibility on the same stimulator has been analysed and their concomitant has been proven as well as the increased range of sensations [34] . A joint model has been proposed to describe the behaviour of the friction when both principles are merged. For the analysis, a specific experimental test bench has been built to measure the forces induced, as shown in figure 7 .

Figure 7. The experimental setup, and the recorded friction modulation.