DB16智能大型岩土工程无损检测仪及其应用

英文篇名：DB16 intellectual NDT instrument for large-size geotechnical engineering and its application
中文刊名：地球物理学进展
英文刊名：Progress In Geophysics
作者：龙士国 ; 马天朗
英文作者：LONG Shiguo ; MA Tianlang (Institute of Xiangtan TianHong Electron ; Xiangtan 411100 ; China)
中文关键词：大功率稀土超磁致伸缩换能器 ; 声波CT技术 ; 大型岩土工程无损检测
英文关键词：large power rare earth magnetostrictive transducer ; CT of sound ; NDT for large-size geotechnical engineering
出版日期：2003-09-30
机构：湘潭市天鸿电子研究所,湘潭市天鸿电子研究所湘潭411100 ,湘潭411100
年：2003
期：03
出版单位：地球物理学进展

摘要

介绍一种智能大型岩土工程无损检测仪及其应用.该仪器以大功率稀土超磁致伸缩换能器作震源,以与计算机并行接口连接的高速数据传输的16通道DB16数据采集系统进行声波采集,以高灵敏度的低频压电陶瓷(PZT)换能器作接收,用声波层析成像(CT)技术进行数据处理,检测结果用彩色等高图表示.该仪器从参数的设置到数据的采集、保存、CT数据的处理、CT成像等全在一专用软件中完成,操作方便快捷.给出了利用本仪器对某大型水库的泄流深孔挑流鼻坎混凝土浇注质量无损检测的应用实例.
In this paper, the intellectual nondestructive testing (NDT) instrument for largesize geotechnical engineering and its application are presented. The instrument consists of large power rare earth magnetostrictive transducer, which has focused energy and good repetition, DB16 digital acquisition system that communicates with personal computer (PC) or notebook PC by parallel interface and high sensitive (PZT) transducer with low frequency. The data is dealt with computerized tomography (CT) technology and the results are color contour map. The manipulations of parameter setting, data acquisition and save, CT calculation and contour map are completed with one special program.

引文

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