Research on Quantitative Circuit Model and Detection of Crack Based on Microstrip Line Structure

IF 5.9 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Instrumentation and Measurement Pub Date : 2025-09-12 DOI:10.1109/TIM.2025.3609373

Jun Zhang;Liu Tao;Xuan Xie;Bei Huang;Yaya Song;Lihong Dong;Haidou Wang

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引用次数: 0

Abstract

Fatigue cracks and other forms of damage can have a significant impact on the normal operation of metal facilities, necessitating the deployment of multiple sensors for monitoring within large structures. The arrangement of these sensors must take into account factors such as the shape, size, and complexity of the monitoring area, as well as the optimal positioning and spacing of sensor nodes. This requirement for comprehensive coverage while minimizing costs presents considerable challenges for structural health monitoring (SHM) techniques. In this article, the feasibility of crack detection with a simple microstrip line (ML) is studied in the millimeter-wave band. The detection sensitivity is 0.283/mm2, the precision is 13.61%, and the minimum crack depth that can be identified is 0.2 mm (when crack width

$\ge 1.0$

mm). An equivalent circuit model for this type of traveling-wave sensor is established in conjunction with field analysis, and the accuracy of the model is verified by comparing full-wave simulation and the circuit model. The proposed sensor can act as a distributed sensor for the SHM applications.

查看原文本刊更多论文

基于微带线结构的定量电路模型及裂纹检测研究

疲劳裂纹和其他形式的损坏会对金属设施的正常运行产生重大影响，因此需要在大型结构中部署多个传感器进行监测。这些传感器的布置必须考虑监控区域的形状、大小、复杂程度等因素，以及传感器节点的最佳位置和间距。这种在最小化成本的同时要求全面覆盖，这对结构健康监测（SHM）技术提出了相当大的挑战。本文研究了在毫米波波段用简单微带线进行裂纹检测的可行性。检测灵敏度为0.283/mm2，精度为13.61%，可识别的最小裂纹深度为0.2 mm（当裂纹宽度为1.0 mm时）。结合现场分析，建立了该型行波传感器的等效电路模型，并通过全波仿真与电路模型的对比验证了模型的准确性。所提出的传感器可以作为SHM应用程序的分布式传感器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Instrumentation and Measurement 工程技术-工程：电子与电气

CiteScore

9.00

自引率

23.20%

发文量

1294

审稿时长

3.9 months

期刊介绍： Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.