A stretchable and self-powered strain sensor with elastomeric electret
Author(s): |
Yanyu Li
Yifan Li Haoyu Gu Chongpu Zhai Siyang Song Shuwen Zhang Minglong Xu |
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Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 18 July 2024, n. 8, v. 33 |
Page(s): | 085033 |
DOI: | 10.1088/1361-665x/ad62d4 |
Abstract: |
Stretchable deformation sensors play an important role in the perception and autonomy of soft robots. While various sensors have been reported, the mechanical sensor with self-powered capability and stretchability to suit extreme environment is urgently required. In this study, a stretchable, self-powered, sensitivity adjustable, and long-term stability strain sensor based on the stretchable electret is researched for deformation monitoring. This stretchable and self-powered sensor is composed of the dielectric elastomer with designed elastic modulus gradient and the stretchable electret with elastomeric and Nano-particles. The electro-mechanical capability of this designed sensor is researched and optimized by multi-objective optimization approach. The sensor exhibits self-powered capability, stretchability (tensile strain from 0% to 20%), tunable sensitivity (optimized from 5.7 to 5.9 pC mm−1), and stability, where electromechanical performance remains stable after 8000 stretching cycles. The feasibility of its autonomous sensing which promotes a wide range of potential application in soft robotics is demonstrated. This elastic modulus gradient-induced and net charge design significantly broadened the potential applications with large deformation and low-attached stiffness. |
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data sheet - Reference-ID
10790647 - Published on:
01/09/2024 - Last updated on:
01/09/2024