压电阻抗法中PZT片的形状选择研究

张耀文; 何颖; 赵晶; 霍林生

doi:10.13873/J.1000-9787(2024)04-0045-04

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压电阻抗法中PZT片的形状选择研究

研究与探讨 | 更新时间：2025-09-11

- 压电阻抗法中PZT片的形状选择研究
- 暂无标题
- 传感器与微系统 2024年第4期页码：45-48+52
- 作者机构：
  
  1. 大连交通大学材料科学与工程学院
  2. 大连科技学院交通运输学院
  3. 大连理工大学建设工程学部
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(52178274)
- DOI：10.13873/J.1000-9787(2024)04-0045-04
  中图分类号： TP212
- 纸质出版：2024
- 稿件说明：
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张耀文, 何颖, 赵晶, 等. 压电阻抗法中PZT片的形状选择研究[J]. 传感器与微系统, 2024,(4):45-48+52.
张耀文, 何颖, 赵晶, 等. 压电阻抗法中PZT片的形状选择研究[J]. 传感器与微系统, 2024,(4):45-48+52. DOI： 10.13873/J.1000-9787(2024)04-0045-04.

DOI：

摘要

压电陶瓷锆钛酸铅(PZT)片是压电阻抗法中普遍使用的传感器，首先，对厚度相同且面积相近的圆形、正方形、矩形、五边形、梯形PZT片对同一钢板上相同损伤及其严重程度的敏感性进行了对比。然后，利用有限元软件COMSOL对各形状PZT片主表面平面内位移进行了分析研究。结果表明：在压电阻抗法应用中，面积相同的PZT片，圆形、正方形和矩形对损伤及其严重程度的敏感性较优。矩形PZT片对损伤的敏感性具有方向性，对宽度侧的损伤更敏感。就形状这一单一因素而言，压电阻抗法中PZT片的性能差异，取决于其主表面平面内位移一致性。一致性越好，对损伤及其严重程度的识别能力越强。

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