为更加快捷高效地完成船舶海水管路的日常探伤，提出一种基于电涡流平面反射原理的自相关探测方法。首先，利用高频涡流反射原理，设计管路探伤的整体方案及硬件架构；其次，通过虚拟仪器技术方案，完成采集信号的处理，并以时域检测的自相关性完成接收信号的分析；随后，通过控制变量方法，完成对涡流线圈的匝数、信号发生装置参数、检测线圈的尺寸等方面的数据确定；最后，利用已标记腐蚀的DN150碳素钢管管段作为探伤实验对象进行实验，通过波形的自相关性分析，证明检测方法的有效性。
To achieve more rapid and efficient daily non-destructive testing (NDT) of ship seawater pipelines, this paper proposes an autocorrelation detection method based on the planar eddy current reflection principle. First, leveraging the high-frequency eddy current reflection mechanism, an integrated NDT system and hardware architecture are designed. Second, through a virtual instrument technology framework, the acquired signals are processed, and autocorrelation analysis in the time domain is applied to interpret the received signals. Subsequently, using a controlled variable approach, key parameters such as the number of turns in the eddy current coil, signal generator specifications, and detection coil dimensions are optimized. Finally, experiments are conducted on a DN150 carbon steel pipe section with pre-marked corrosion defects. Results from the waveform autocorrelation analysis validate the effectiveness of the proposed detection method.
2026,48(5): 188-193 收稿日期：2025-7-10
DOI：10.3404/j.issn.1672-7649.2026.05.030
分类号：U674
作者简介：韩科(1993-),男,硕士研究生,研究方向为船舶损管、机电一体化
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