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Gu, Jimin; Ahn, Junseong; Jung, Jiyoung; Cho, Seokjoo; Choi, Jungrak; Jeong, Yongrok; Park, Jaeho; Hwang, Soonhyoung; Cho, Incheol; Ko, Jiwoo; Ha, Ji-Hwan; Zhao, Zhi-Jun; Jeon, Sohee; Ryu, Seunghwa; Jeong, Jun-Ho; Park, Inkyu
Nano energy, November 2021, 2021-11-00, Letnik: 89Journal Article
In the field of soft strain sensors, piezo-transmittance based strain sensors, which detect strains by optical transmittance change, have promising advantages of fast response, high sensitivity, long-term stability, and negligible effect from environmental factors. However, they feature low sensor-to-sensor and in-sensor uniformity as well as unpredictable response and high stiffness. This study exploits the gap control of an auxetic-patterned elastomer to develop a piezo-transmittance based strain sensor. Gap opening mechanism in the negative Poisson’s ratio metamaterial with rotating square structures makes the sensor free from these limitations; thus, achieving a designable response and low stiffness. In addition, high sensor-to-sensor ((root-mean-square deviation (RSD) < 3.5%) and in-sensor (RSD < 5%) uniformities are achieved by uniform metal-deposited light-blocking film. Finally, the developed sensor has been integrated with a solar cell and Bluetooth Low Energy (BLE) 4.0 to afford a self-powered wireless strain sensing system that is successfully applied to structural health monitoring and human motion monitoring. A piezo-transmittance based strain sensor based on an auxetic structure with a gold-deposited elastomer is developed. Through this design, we accomplish high sensor-to-sensor and in-sensor uniformity. Furthermore, the gap opening mechanism allows an ultralow stiffness as well as a rational designability. The developed sensor is integrated into a self-powered wireless sensing system for structural health monitoring and human motion monitoring. Display omitted •A piezo-transmittance based self-powered strain sensor is developed.•High sensor uniformity is accomplished using a uniform mechanical metamaterial.•The gap opening mechanism allows an ultralow stiffness and rational designability.•A self-powered wireless sensing system using solar cell and BLE is developed.•The system is utilized for structural health monitoring and human motion monitoring.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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