油罐声发射检测信号数据库研究及应用  

Research and application of acoustic emission monitoring signal database system for oil tank

作　　者：陈涛[1] 刘丽川[1] 方卫红[1] 巨平勇 杨金林[1] 何旺[1] 

机构地区：[1]后勤工程学院 [2]73539部队

出　　处：《应用声学》2013年第2期152-159,共8页Journal of Applied Acoustics

摘　　要：分析了油罐声发射检测技术特点和弱点,基于对检测影响因素的分析研究提出了油罐声发射信号特征数据库系统。采用盐水腐蚀真实罐底板,模拟油罐腐蚀。以Matlab软件为基础,提取全波形文件中被识别为腐蚀类别的特定帧信号,选取合适的自适应阈值电压得到信号特征参数,将全波形信号和信号特征参数入库。根据数据库特征参数训练支持向量机分类器,应用到实际油罐检测中并与开罐检测结果作对比,达到预期油罐分类效果。Characteristics and weaknesses of acoustic emission monitoring are discussed in the paper. Acoustic emission monitoring signal database system of Oil Tank is put forward based on the analysis and research of effect on monitoring.Extract the identified as corrosion specific frame signals form full waveform files based on Matlab software by using the saltwater rust the true tank bottom. While the limen is comfirmed the corresponding parameters are catched, those parameters and fuU waveform flies are storaged in DB system. Parameters from DB System are trained Support Vector math machine which is used evaluating oil tank. By Comparison with tank bottom testing ,DB system achieve the desired classification results.

关 键 词：数据库 油罐 声发射 矩阵实验室 

分 类 号：TE82[石油与天然气工程—油气储运工程]