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Piezoelectric strain sensor with high sensitivity and high stretchability based on kirigami design cutting
npj Flexible Electronics ( IF 12.3 ) Pub Date : 2022-06-23 , DOI: 10.1038/s41528-022-00186-4
Young-Gyun Kim , Ji-Hyeon Song , Seongheon Hong , Sung-Hoon Ahn

Wearable technology requires high-performance sensors with properties such as small size, flexibility, and wireless communication. Stretchability, sensitivity, and tunability are crucial sensor properties; stretchability and sensitivity ensure user comfort and accurate sensing performance, while tunability is essential for implementing sensors in diverse applications with different ranges of motion. In this study, we developed a high performance kirigami piezoelectric strain sensor. Using finite element analysis, the sensing performance was evaluated, and the kirigami patterns were optimized. The electromechanical properties of sensors with four different kirigami patterns were analyzed. A sensor voltage measurement circuit was also designed, amplifying the output voltage 86.5 times by improving measurement accuracy. A piezoelectric kirigami sensor was constructed with a sensitivity of 9.86 V/cm2 and a stretchability of 320.8%, higher than those of previously reported kirigami piezoelectric strain sensors. Finally, the fabricated sensor was successfully applied in a haptic glove for playing musical instruments.



中文翻译:

基于剪纸设计切割的高灵敏度高拉伸压电应变传感器

可穿戴技术需要具有小尺寸、灵活性和无线通信等特性的高性能传感器。可拉伸性、灵敏度和可调性是至关重要的传感器特性。可拉伸性和灵敏度确保用户舒适和准确的传感性能,而可调性对于在具有不同运动范围的各种应用中实现传感器至关重要。在这项研究中,我们开发了一种高性能的剪纸压电应变传感器。使用有限元分析评估传感性能,并优化剪纸图案。分析了具有四种不同剪纸图案的传感器的机电特性。还设计了传感器电压测量电路,通过提高测量精度将输出电压放大86.5倍。2和 320.8% 的拉伸性,高于先前报道的剪纸压电应变传感器。最后,制造的传感器成功地应用于演奏乐器的触觉手套。

更新日期:2022-06-23
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