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Salt Lake City, UT, USA
Mar. 18, 2009 to Mar. 20, 2009
ISBN: 978-1-4244-3858-7
pp: 625-626
Jumana M. Abu-Khalaf , Department of Mechanical Engineering, University of Utah, USA
Debra J. Mascaro , Department of Mechanical Engineering, University of Utah, USA
Stephen A. Mascaro , Department of Mechanical Engineering, University of Utah, USA
ABSTRACT
This paper describes a novel stretchable fingernail sensor for measuring fingertip forces for human-computer interaction. The fingernail sensor uses photoplethysmography to measure the change in blood perfusion in the fingernail bed when the fingerpad touches a surface with various forces. The original fingernail sensor was rigidly attached to the human fingernail, necessitating a customized fabrication for each individual user. Using novel fabrication techniques, a new stretchable sensor has been developed, where optoelectronic components are embedded within a soft rubber substrate, connected by stretchable conductors. This stretchable sensor can conform to the two-dimensional curvature of any human finger, eliminating the need for individual customization. In this paper, we demonstrate the successful fabrication of a prototype sensor with two LEDs and two photodetectors
CITATION
Jumana M. Abu-Khalaf, Debra J. Mascaro, Stephen A. Mascaro, "Stretchable fingernail sensors for measurement of fingertip force", WHC, 2009, World Haptics Conference, World Haptics Conference 2009, pp. 625-626, doi:10.1109/WHC.2009.4810920
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