Journal
IEEE TRANSACTIONS ON HAPTICS
Volume 8, Issue 2, Pages 235-239Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TOH.2015.2430353
Keywords
Tactile devices and display; tactile stimulator; electrovibration; squeeze film effect; ultrasonic devices; electrostatic force; friction modulation; dynamic system response
Categories
Funding
- FP7 Marie Curie Initial Training Network PROTOTOUCH [317100]
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Two different principles are available to modulate the user perceived roughness of a surface: electrovibration and ultrasonic vibration of a plate. The former enhances the perceived friction coefficient and the latter reduces it. This paper will highlight the independence of the two effects on the physical and perceptual point of view to confirm the increased range of sensation and stimulation that can be supplied by the two coupled techniques to the users. Firstly, a tribometric analysis of the induced lateral force on the finger by the two coupled effects will be presented, then a study on the dynamic of the two effects will be reported. In the end, a psychophysical experiment on the perception of the two coupled techniques will be shown.
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