Electro-tactile display with real-time impedance feedback

Authors:
Hiroyuki Kajimoto
Affiliations:
The University of Electro-Communications, Chofu, Tokyo, Japan and Japan Science and Technology Agency
Venue:
EuroHaptics'10 Proceedings of the 2010 international conference on Haptics: generating and perceiving tangible sensations, Part I
Year:
2010

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Abstract

An electro-tactile display is a tactile interface composed of skin surface electrodes. Such displays comprise many useful features such as durability and energy efficiency, but their use is limited by the variability of the elicited sensation. One possible solution to this problem involves monitoring skin electrical impedance. Previous studies established the existence of a correlation between impedance and threshold, but did not construct true real-time feedback loops. In this study, we constructed a system with a 1.45-µs feedback loop, and evaluated the feasibility of the system.