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A flexible pressure sensor with highly customizable sensitivity and linearity via positive design of microhierarchical structures with a hyperelastic model

Engineering and Technology

A flexible pressure sensor with highly customizable sensitivity and linearity via positive design of microhierarchical structures with a hyperelastic model

Z. Xu, D. Wu, et al.

Discover a groundbreaking flexible pressure sensor designed by Zhenjin Xu, Dezhi Wu, Zhiwen Chen, Zhongbao Wang, Cong Cao, Xiangyu Shao, Gang Zhou, Shaohua Zhang, Lingyun Wang, and Daoheng Sun, offering customizable sensitivity and linearity. This innovative sensor is poised to revolutionize physiological signal recognition with remarkably low sensitivity errors and high linearity.

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Playback language: English
Abstract
This paper presents a novel flexible pressure sensor with customizable sensitivity and linearity. The sensor achieves this through a positive design strategy utilizing a hyperelastic model and a Hertzian contact model for comparison. Microstructure distribution is pre-calculated to meet desired specifications. Three sensors demonstrated sensitivities of 0.7, 1.0, and 1.3 kPa⁻¹ over a linear region up to 200 kPa, with low sensitivity error (<5%) and high linearity (~0.99). Potential applications in physiological signal recognition are shown.
Publisher
Microsystems & Nanoengineering
Published On
Jan 01, 2023
Authors
Zhenjin Xu, Dezhi Wu, Zhiwen Chen, Zhongbao Wang, Cong Cao, Xiangyu Shao, Gang Zhou, Shaohua Zhang, Lingyun Wang, Daoheng Sun
Tags
flexible pressure sensor
customizable sensitivity
Hertzian contact model
microstructure distribution
physiological signal recognition

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