Abstract
In this study, an active electrostatic tactile display, which is capable of applying directional forces to a stationary finger, is analyzed. Directional forces are created using friction induced by electrostatic attraction. A shaker is used to move the tactile display relative to the stationary finger. In order to investigate the factors affecting active feedback such as relative displacement, frequency of excitation signal and amplitude of the excitation signal, a combination of signals is implemented. In the first step, minimum relative displacement necessary for directional force is examined. In the second step, lateral forces are measured for four distinct frequencies of electrostatic excitation. Finally in the third step, the effect of the amplitude of excitation voltage is investigated. The results show the feasibility of creating active feedback on an electrostatic tactile display. Minimum relative displacement is found as 4 mm. Increasing frequency and amplitude of electrostatic signal lead to the higher value of the directional force.
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Acknowledgement
We would like to thank Cagatay Basdogan and his team for lending us the TREK PZD700A amplifier. This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK, # 113E601).
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Alma, U.A., Ilkhani, G., Samur, E. (2016). On Generation of Active Feedback with Electrostatic Attraction. In: Bello, F., Kajimoto, H., Visell, Y. (eds) Haptics: Perception, Devices, Control, and Applications. EuroHaptics 2016. Lecture Notes in Computer Science(), vol 9775. Springer, Cham. https://doi.org/10.1007/978-3-319-42324-1_44
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DOI: https://doi.org/10.1007/978-3-319-42324-1_44
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