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Title:Multifunctional wearable fingertip electronics
Author(s):Ying, Ming
Advisor(s):Rogers, John A.
Department / Program:Mechanical Sci & Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Flexible electronics
fingertip electronics
electrotactile stimulation
silicon strain gauge
tactile sensing
elastomeric capacitor
silicon nanomembranes
Abstract:This thesis describes the device designs, fabrication methods and the results of simulations and tests for a class of electronics capable of integration onto the inner and outer surfaces of thin, elastomeric sheets in closed-tube geometries, specially formed for mounting on fingertips. Multifunctional systems of this type allow electrotactile stimulation with electrode arrays multiplexed using silicon nanomembrane diodes (Si NM), high-­sensitivity strain monitoring with Si NM gauges, and tactile sensing with elastomeric capacitors. Experiments have been conducted for each of the devices to demonstrate the expected functionalities. Analytical calculations and finite element modeling of the mechanics quantitatively capture the key behaviors during fabrication/assembly, mounting and use. The results provide design guidelines that highlight the importance of the NM geometry in achieving the required mechanical properties. This type of technology could be used in applications ranging from human–machine interfaces to ‘instrumented’ surgical gloves and many others.
Issue Date:2012-09-18
Rights Information:Copyright 2012 Ming Ying
Date Available in IDEALS:2012-09-18
Date Deposited:2012-08

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