Robust and scalable three-dimensional spacer textile pressure sensor for human motion detection
- Authors
- Kim, Kyungkwan; Jung, Minhyun; Jeon, Sanghun; Bae, Jihyun
- Issue Date
- May-2019
- Publisher
- IOP PUBLISHING LTD
- Keywords
- wearable pressure sensor; 3D spacer fabric; textile electronics; health monitoring
- Citation
- SMART MATERIALS AND STRUCTURES, v.28, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- SMART MATERIALS AND STRUCTURES
- Volume
- 28
- Number
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/13448
- DOI
- 10.1088/1361-665X/ab1adf
- ISSN
- 0964-1726
- Abstract
- There is a growing demand for wearable sensing devices to perceive and respond to vital biological signals or human activities. In this work, a carbon nanotube ink drop-coated textile resistive pressure sensor on a typical three-dimensional (3D) spacer textile was developed to detect human health and motion through scalable, cost-effective, and simple processing. A 3D spacer textile comprises two outer layers interconnected with a monofilament spacer with robust compression resistance and high air circulation with open-hole structures, which demonstrates the potential for use in a wearable pressure sensing device. The textile pressure sensor unit shows a wide range of sensing performance of 200 Pa-50 kPa, which facilitates the detection of physiological signal acoustic vibrations and hand motion, and it exhibits stable cycling performances up to 10 000 cycles, along with a fast response time of 20 ms. Furthermore, large-area sensor arrays are successfully demonstrated for the spatial distribution of pressure mapping, suggesting significant potential in smart textiles or wearable electronics.
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