Design and fabrication of flexible carbon fabric PDMS based strain sensor for human motion monitoring

Verma, L, Karnawal, I, Chaudhary, V, Kumar, P, Singh, D, Kumar, R, Sapra, G, Cleveland, B ORCID logoORCID: https://orcid.org/0000-0001-6898-9095, Afazov, S ORCID logoORCID: https://orcid.org/0000-0001-5346-1933, Felton, P ORCID logoORCID: https://orcid.org/0000-0001-9211-0319 and Breedon, P ORCID logoORCID: https://orcid.org/0000-0002-1006-0942, 2023. Design and fabrication of flexible carbon fabric PDMS based strain sensor for human motion monitoring. IEEE Sensors Journal. ISSN 1530-437X

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Abstract

This work describes the fabrication of a carbon fabric polydimethylsiloxane (PDMS) based strain sensor to monitor the human kinematics with high flexibility, durability, and sensitivity. A flexible stretchable strain sensor is fabricated by using activated carbon fabric and PDMS to form the nanocomposite film. For the fabrication of the flexible sensor, robustness and durability of electrodes is essential for its performance. To create robust electrodes, a novel idea of using snap buttons is introduced. The various material, electrical and mechanical characteristics of the sensor samples have been analysed and discussed. To understand the behaviour of the sensor under varied environmental conditions, variations with respect to change in temperature, humidity and moisture conditions are comprehensively studied. The developed sensor has Young’s modulus of elasticity (0.0127 MPa), high gauge factor (25.9), faster response time (~ms), excellent cyclic repeatability, and robustness to variation in temperature and humidity. Finally, the developed sensor is tested on the forefinger, wrist and knees for monitoring human motions while performing different physical activities. The developed sensor has shown promising results and will be useful for applications across the field of wearable electronics and biomedical devices.

Item Type: Journal article
Publication Title: IEEE Sensors Journal
Creators: Verma, L., Karnawal, I., Chaudhary, V., Kumar, P., Singh, D., Kumar, R., Sapra, G., Cleveland, B., Afazov, S., Felton, P. and Breedon, P.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 5 July 2023
ISSN: 1530-437X
Identifiers:
Number
Type
10.1109/jsen.2023.3290218
DOI
1779674
Other
Rights: © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Divisions: Schools > School of Science and Technology
Record created by: Laura Ward
Date Added: 11 Jul 2023 08:56
Last Modified: 11 Jul 2023 08:56
URI: https://irep.ntu.ac.uk/id/eprint/49349

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