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Auxetic kirigami structure-based self-powered strain sensor with customizable performance using machine learning

delete2024-11-01
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PRE
AI
J
Jimin Gu
Y
Yongsu Jung
J
Junseong Ahn
J
Jihyeon Ahn
J
Jungrak Choi
B
Byeongmin Kang
Y
Yongrok Jeong
J
Ji‐Hwan Ha
T
Tae Hwan Kim
Y
Young Seok Jung
J
Jaeho Park
J
Jiyoung Jung
S
Seunghwa Ryu
I
Ikjin Lee
I
In‐Kyu Park *
DOI:10.1016/j.nanoen.2024.110124delete
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Abstract

Abstract

En 中文
Recently, soft material based wearable sensors have discovered numerous applications in healthcare, sports monitoring, and virtual reality/augmented reality (VR/AR) systems. For these sensors, fulfilling user-specified requirements rather than just improving the sensor performance has become an important issue. In this study, a self-powered piezo-transmittance type strain sensor based on auxetic structures was optimized for configurable and user-specified characteristics using a machine-learning surrogate model. The sensor mechanism is based on the optical transmittance change induced by the gap opening of the auxetic kirigami structure. The sensor performance was analyzed according to the geometric design variables, and the optimal design was determined using Bayesian and Gaussian process to maximize the sensor performance for different purposes. The optimally designed geometries were used for self-powered sensors on a structural health monitoring (SHM) system, a human motion monitoring (HMM) system for monitoring sports performance and incorporated into an AR system.
Keywords:
Self-powered sensor
Strain sensor
Auxetic structure
Machine learning
Customizable performance
AR wearable system

Journal

Nano Energy cover
Nano Energy
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17.1
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1.2W
Citations:
13.0W

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K
Korea University
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U
University of California Berkeley
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University of California System
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K
Korea Atomic Energy Research Institute (KAERI)
Scholars:
3.3K
Papers: 3.1K
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