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Proceedings Paper

Sensing human physiological response using wearable carbon nanotube-based fabrics
Author(s): Long Wang; Kenneth J. Loh; Helen S. Koo
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Paper Abstract

Flexible and wearable sensors for human monitoring have received increased attention. Besides detecting motion and physical activity, measuring human vital signals (e.g., respiration rate and body temperature) provide rich data for assessing subjects’ physiological or psychological condition. Instead of using conventional, bulky, sensing transducers, the objective of this study was to design and test a wearable, fabric-like sensing system. In particular, multi-walled carbon nanotube (MWCNT)-latex thin films of different MWCNT concentrations were first fabricated using spray coating. Freestanding MWCNT-latex films were then sandwiched between two layers of flexible fabric using iron-on adhesive to form the wearable sensor. Second, to characterize its strain sensing properties, the fabric sensors were subjected to uniaxial and cyclic tensile load tests, and they exhibited relatively stable electromechanical responses. Finally, the wearable sensors were placed on a human subject for monitoring simple motions and for validating their practical strain sensing performance. Overall, the wearable fabric sensor design exhibited advances such as flexibility, ease of fabrication, light weight, low cost, noninvasiveness, and user comfort.

Paper Details

Date Published: 1 April 2016
PDF: 9 pages
Proc. SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 98051X (1 April 2016); doi: 10.1117/12.2219519
Show Author Affiliations
Long Wang, Univ. of California-San Diego (United States)
Kenneth J. Loh, Univ. of California-San Diego (United States)
Helen S. Koo, Univ. of California-Davis (United States)

Published in SPIE Proceedings Vol. 9805:
Health Monitoring of Structural and Biological Systems 2016
Tribikram Kundu, Editor(s)

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