【摘要】 为了精确探测城市基础设施中的埋地聚乙烯（PE）管道，本文开发了一种基于声波导共振原理的埋地PE管道探测技术。首先确定幅值最高的共振频率，利用电磁激励源激发特定频率声波，通过数据处理技术分析定位管道。结果表明，在50～500 Hz的频率范围内，PE管道内共振现象明显，最大共振幅值对应的频率为175.42 Hz。通过测量共振信号的最大幅值，实现对管道水平位置的定位。该技术基于声波导理论，能够准确地定位埋地管道的水平方向位置。更多还原

【Abstract】 In order to accurately detect buried polyethylene(PE) pipelines within urban infrastructure, a buried PE pipeline detection technique based on the acoustic waveguide resonance principle was developed. First,the resonance frequency with the highest amplitude is identified, and specific frequency acoustic waves are excited using an electromagnetic excitation source. Data processing technology is then used to analyze and locate the pipeline.within the frequency range of 50 ～ 500 Hz, resonance phenomena within the PE pipe are significant, with the maximum resonance amplitude corresponding to a frequency of 175.42 Hz. By measuring the maximum amplitude of the resonance signal, the horizontal positioning of the pipeline is achieved. This technology, based on acoustic waveguide theory, can accurately locate the horizontal direction of buried pipelines.更多还原