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A Differential Capacitive Sensing Sy...

Vallett, Richard James.

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A Differential Capacitive Sensing System for Knitted Textiles.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A Differential Capacitive Sensing System for Knitted Textiles./
作者:	Vallett, Richard James.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	131 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-09, Section: B.
Contained By:	Dissertations Abstracts International81-09B.
標題:	Textile research. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27736323
ISBN:	9781392761212

A Differential Capacitive Sensing System for Knitted Textiles.
Vallett, Richard James.

A Differential Capacitive Sensing System for Knitted Textiles. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 131 p.

Source: Dissertations Abstracts International, Volume: 81-09, Section: B.

Thesis (Ph.D.)--Drexel University, 2020.

This item must not be sold to any third party vendors.

Textiles, in combination with advances in materials, intelligent sensing and signal processing, offer exciting new possibilities for fabric-based human interfaces and flexible, touch-sensitive devices. This thesis introduces a novel touch detection method and applies signal processing techniques towards measuring distributed capacitive touch across knitted fabric circuits. This work introduces differential capacitive sensing-a technique to measure capacitive touch along a continuous linear conductor using paired input and output voltage waveforms. A framework for constructing compatible knitted circuits from conductive yarns is introduced that enables the creation of extensible fabric touch interfaces using digital weft knitting. Touch localization, through differential capacitive sensing, is improved by applying Bode analysis to measure frequency-specific signal attenuation invariant to distortion from electromagnetic interference. A real-time sensing controller is constructed to generate, acquire and process voltage waveforms measured from the fabric circuit. The processed data are recorded as a time series of paired gain measurements with respect to input frequency. The contributions of this work make possible the development of Mixed-Source Description, a method to extract scale-space features from time-frequency measurements. A scale-space representation of temporal gestures, such as press-and-release, is constructed and compared using a novel distance metric, the Euclidean Levenshtein Distance, developed to quantify the similarity between temporal touch data. This work provides the foundation for quantifying high-level user input using textile-based sensors and a robust capacitive touch sensing system.

ISBN: 9781392761212Subjects--Topical Terms:

2153103
Textile research.
Subjects--Index Terms:

CapacitiveTouch Sensing

A Differential Capacitive Sensing System for Knitted Textiles.
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245 1 0 $a A Differential Capacitive Sensing System for Knitted Textiles.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 131 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-09, Section: B.
500 $a Advisor: Kim, Youngmoo;Dion, Genevieve.
502 $a Thesis (Ph.D.)--Drexel University, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Textiles, in combination with advances in materials, intelligent sensing and signal processing, offer exciting new possibilities for fabric-based human interfaces and flexible, touch-sensitive devices. This thesis introduces a novel touch detection method and applies signal processing techniques towards measuring distributed capacitive touch across knitted fabric circuits. This work introduces differential capacitive sensing-a technique to measure capacitive touch along a continuous linear conductor using paired input and output voltage waveforms. A framework for constructing compatible knitted circuits from conductive yarns is introduced that enables the creation of extensible fabric touch interfaces using digital weft knitting. Touch localization, through differential capacitive sensing, is improved by applying Bode analysis to measure frequency-specific signal attenuation invariant to distortion from electromagnetic interference. A real-time sensing controller is constructed to generate, acquire and process voltage waveforms measured from the fabric circuit. The processed data are recorded as a time series of paired gain measurements with respect to input frequency. The contributions of this work make possible the development of Mixed-Source Description, a method to extract scale-space features from time-frequency measurements. A scale-space representation of temporal gestures, such as press-and-release, is constructed and compared using a novel distance metric, the Euclidean Levenshtein Distance, developed to quantify the similarity between temporal touch data. This work provides the foundation for quantifying high-level user input using textile-based sensors and a robust capacitive touch sensing system.
590 $a School code: 0065.
650 4 $a Textile research. $3 2153103
650 4 $a Electrical engineering. $3 649834
653 $a CapacitiveTouch Sensing
653 $a Knitting
653 $a Signal processing
653 $a Textiles
690 $a 0994
690 $a 0544
710 2 $a Drexel University. $b Mechanical Engineering and Mechanics (College of Engineering). $3 3168962
773 0 $t Dissertations Abstracts International $g 81-09B.
790 $a 0065
791 $a Ph.D.
792 $a 2020
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27736323