Fabrication and applications of flexible piezoelectric fiber composites sensor

被引：1

作者：

Xiao Z.-D. ^{[1
]}

Yuan X. ^{[2
]}

Yan M.-Y. ^{[1
]}

Zhou K.-C. ^{[1
]}

Zhang D. ^{[1
]}

机构：

[1] State Key Laboratory of Powder Metallurgy, Institute of Powder Metallurgy, Central South University, Changsha

[2] School of Chemistry and Chemical Engineering, Central South University, Changsha

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2023年 / 33卷 / 02期

关键词：

acceleration; bending strain; flexibility; piezoelectric fiber composites; sensing performance; sensitivity;

D O I：

10.11817/j.ysxb.1004.0609.2021-42587

中图分类号：

学科分类号：

摘要：

With the rapid development of smart devices and the Internet of Things, the flexible and wearable piezoelectric sensors have received more and more attention. In this paper, a flexible piezoelectric fiber composite sensor was fabricated, and the ability of bending strain, bending angle and vibration acceleration of the sensor were demonstrated. The results show that the output voltage of the flexible piezoelectric sensor presents a linear increase trend with the increase of acceleration in the cantilever beam vibration test. The flexible piezoelectric sensor exhibits good linearity in the frequency range far from the resonance frequency, which proves that it can be used as a sensor to detect vibration acceleration. During the bonding test, the output voltage increases with the increase of bonding strain, and the output voltage per micro strain under bending deformation reaches 8.54 mV, which proves that the sensor has excellent sensitivity. With the change of the bending frequency, the output voltage amplitude of the flexible piezoelectric sensor has no obvious change, demonstrating that it has good sensing stability. The output voltage amplitude does not exhibit obvious decrease after 100000 cycles of bending test, proving that it has good fatigue performance. © 2023 Central South University of Technology. All rights reserved.

引用

页码：413 / 424

页数：11

共 37 条

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