脉冲涡流测量中的倾斜效应分析与评价

IF 4.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Ndt & E International Pub Date : 2025-10-10 DOI:10.1016/j.ndteint.2025.103570

Kuohai Yu , Rui Guo , Saibo She , Lei Xiong , Xinnan Zheng , Xun Zou , Jialong Shen , Wuliang Yin

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引用次数: 0

摘要

传感器倾斜被认为是涡流检测中产生噪声的主要原因之一。倾斜的脉冲涡流（PEC）探头会导致信号失真，从而导致测量和评估误差。本文首次通过建立倾斜式脉冲电位传感器的解析解，研究了倾斜对脉冲电位信号的影响。解析解将倾斜线圈的互阻抗变化理论与PEC测试相结合。结果表明，倾斜角度对瞬态电压变化幅度和衰减速率的影响均呈双指数函数关系。进行了相应的实验，与数值结果吻合较好，验证了解析解的正确性。此外，提出了一种基于双指数关系曲线的传感器倾角估计方法，平均绝对误差为0.2829°。

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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Tilt effects analysis and evaluation in Pulsed Eddy Current measurements

Sensor tilt is regarded as one of the major causes of noise in eddy current testing. A tilted Pulsed Eddy Current (PEC) probe can lead to signal distortion, resulting in errors in measurements and evaluations. For the first time, this paper investigates the tilt effect on PEC signals by developing an analytical solution for tilted PEC sensors. The analytical solution combines the theory of mutual impedance variation of tilted coils with PEC testing. It is found that the impact of tilt angles on PEC signals follows a double-exponential function in terms of both amplitude and the decreasing rate of transient voltage change. Corresponding experiments have been conducted, which agree well with the numerical results and validate the analytical solutions. Additionally, a sensor tilt angle estimation method based on the double-exponential relationship curve is developed and an average absolute error of 0.2829° has been achieved.

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来源期刊

Ndt & E International 工程技术-材料科学：表征与测试

CiteScore

7.20

自引率

9.50%

发文量

121

审稿时长

55 days

期刊介绍： NDT&E international publishes peer-reviewed results of original research and development in all categories of the fields of nondestructive testing and evaluation including ultrasonics, electromagnetics, radiography, optical and thermal methods. In addition to traditional NDE topics, the emerging technology area of inspection of civil structures and materials is also emphasized. The journal publishes original papers on research and development of new inspection techniques and methods, as well as on novel and innovative applications of established methods. Papers on NDE sensors and their applications both for inspection and process control, as well as papers describing novel NDE systems for structural health monitoring and their performance in industrial settings are also considered. Other regular features include international news, new equipment and a calendar of forthcoming worldwide meetings. This journal is listed in Current Contents.