Electrostatic Modulated Friction as Tactile Feedback: Intensity Perception

Wijekoon, Dinesh, Cecchinato, Marta, Hoggan, Eve and Linjama, Jukka (2012) Electrostatic Modulated Friction as Tactile Feedback: Intensity Perception. In: EuroHaptics 2012: 8th International Conference on Human Haptic Sensing and Touch Enabled Computer Applications, 13th - 15th June 2012, Tampere, Finland.

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Official URL: https://doi.org/10.1007/978-3-642-31401-8_54


We describe the preliminary results from an experiment investigating the perceived intensity of modulated friction created by electrostatic force, or electrovibration. A prototype experimental system was created to evaluate user perception of sinusoidal electrovibration stimuli on a flat surface emulating a touch screen interface. We introduce a fixed 6-point Effect Strength Subjective Index (ESSI) as a measure of generic sensation intensity, and compare it with an open magnitude scale. The results of the experiment indicate that there are significant correlations between intensity perception and signal amplitude, and the highest sensitivity was found at a frequency of 80 Hz. The subjective results show that the users perceived the electrovibration stimuli as pleasant and a useful means of feedback for touchscreens.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: electrovibration, tactile, intensity, perception
Subjects: G400 Computer Science
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 12 Mar 2018 16:25
Last Modified: 11 Oct 2019 21:31
URI: http://nrl.northumbria.ac.uk/id/eprint/33706

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