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基于磁致伸缩技术的桥梁缆索损伤定位研究

, PP. 109-112

Keywords: 桥梁工程,无损检测,磁致伸缩,缆索,损伤定位

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Abstract:

介绍了磁致伸缩技术的基本原理,并研制基于磁致伸缩导波技术的缆索无损检测设备。对设备中的3大系统激励信号发生系统、功率放大系统和导波检测系统进行说明,并分析采用设备进行缆索损伤定位的原理。设计制作带缺陷试验缆索进行大量检测试验,对检测数据进行细致分析,结果表明磁致伸缩技术和研制的无损检测设备可较好地实现缆索损伤定位;传感器无需通过缺陷部位,远距离即可检测出缺陷,导波检测精度与缺陷和传感器之间距离有关,在导波检测范围内,传感器越靠近缺陷,检测精度越高。

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