TY - JOUR
T1 - Conductive porous mxene for bionic, wearable, and precise gesture motion sensors
AU - Duan, Shengshun
AU - Lin, Yucheng
AU - Wang, Zhehan
AU - Tang, Junyi
AU - Li, Yinhui
AU - Zhu, Di
AU - Wu, Jun
AU - Tao, Li
AU - Choi, Chang Hwan
AU - Sun, Litao
AU - Xia, Jun
AU - Wei, Lei
AU - Wang, Baoping
N1 - Publisher Copyright:
Copyright © 2021 Shengshun Duan et al.
PY - 2021/6/9
Y1 - 2021/6/9
N2 - Reliable, wide range, and highly sensitive joint movement monitoring is essential for training activities, human behavior analysis, and human-machine interfaces. Yet, most current motion sensors work on the nano/microcracks induced by the tensile deformation on the convex surface of joints during joint movements, which cannot satisfy requirements of ultrawide detectable angle range, high angle sensitivity, conformability, and consistence under cyclic movements. In nature, scorpions sense small vibrations by allowing for compression strain conversion from external mechanical vibrations through crack-shaped slit sensilla. Here, we demonstrated that ultraconformal sensors based on controlled slit structures, inspired by the geometry of a scorpion’s slit sensilla, exhibit high sensitivity (0.45%deg-1), ultralow angle detection threshold (~15°), fast response/relaxation times (115/72 ms), wide range (15° ~120°), and durability (over 1000 cycles). Also, a user-friendly, hybrid sign language system has been developed to realize Chinese and American sign language recognition and feedback through video and speech broadcasts, making these conformal motion sensors promising candidates for joint movement monitoring in wearable electronics and robotics technology.
AB - Reliable, wide range, and highly sensitive joint movement monitoring is essential for training activities, human behavior analysis, and human-machine interfaces. Yet, most current motion sensors work on the nano/microcracks induced by the tensile deformation on the convex surface of joints during joint movements, which cannot satisfy requirements of ultrawide detectable angle range, high angle sensitivity, conformability, and consistence under cyclic movements. In nature, scorpions sense small vibrations by allowing for compression strain conversion from external mechanical vibrations through crack-shaped slit sensilla. Here, we demonstrated that ultraconformal sensors based on controlled slit structures, inspired by the geometry of a scorpion’s slit sensilla, exhibit high sensitivity (0.45%deg-1), ultralow angle detection threshold (~15°), fast response/relaxation times (115/72 ms), wide range (15° ~120°), and durability (over 1000 cycles). Also, a user-friendly, hybrid sign language system has been developed to realize Chinese and American sign language recognition and feedback through video and speech broadcasts, making these conformal motion sensors promising candidates for joint movement monitoring in wearable electronics and robotics technology.
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U2 - 10.34133/2021/9861467
DO - 10.34133/2021/9861467
M3 - Article
AN - SCOPUS:85108207252
SN - 2096-5168
VL - 2021
JO - Research
JF - Research
M1 - 9861467
ER -