ABSTRACT

A side-by-side probe is typically used in eddy-current testing as it offers advantages such as good sensitivity and high signal-to-noise ratio. However, most studies regarding side-by-side probes are primarily based on circular coils. In this study, an analytical model of a rectangular side-by-side probe is developed, in which transmitter and receiver coils are rectangular and assembled side-by-side above a conductive plate. An experimental setup is built to verify the analytical calculations. Experimental results show that the values calculated using this model agree well with measured values. The analytical model can be used to evaluate probe performance through the geometrical dimensions of the coils, coil distance, and lift-off, and provides an effective tool to aid the design of a rectangular side-by-side probe.

摘要

并排探头通常用于涡流测试，因为它具有良好的灵敏度和高信噪比等优点。然而，大多数关于并排探头的研究主要基于圆形线圈。在这项研究中，开发了一个矩形并排探头的分析模型，其中发射器和接收器线圈是矩形的，并排组装在导电板上方。建立了一个实验装置来验证分析计算。实验结果表明，使用该模型计算出的值与实测值吻合良好。分析模型可用于通过线圈的几何尺寸、线圈距离和提离来评估探针性能，并为辅助矩形并排探针的设计提供有效工具。