基于小波分析的钢丝绳断丝信号检测  

Wavelet analysis of signals from testing broken wires in steel rope

作　　者：张晓春[1] 胡彩雯[1] 

机构地区：[1]华北科技学院基础部,北京101601

出　　处：《仪器仪表学报》2006年第z1期368-369,共2页Chinese Journal of Scientific Instrument

摘　　要：利用漏磁法检测钢丝绳断丝,利用小波变换的变焦特性和局部化性质对检测信号进行了多分辨率分析。结果表明,该方法在奇异信号检测和局部化分析方面具有优异的特性,可以聚焦到信号的细节,适合突变信号的时频分析处理。应用小波变换对钢丝绳断丝检测信号进行了奇异性分析,可以准确判断断丝位置和根数。Broken wires signal was acquired by testing leakage magnetic field.Make use of the changing focal distance and location characteristic of wavelet transform,multiresolution analysis testing signal.The results express that the method has the excellent characteristic for singular signal detection and localization analysis and can focuses detail of signal and keep with time-frequency analysis for sudden signal.Wavelet transform is used to make singularity analysis of the signal from the broken wires in a steel rope.Position and number of broken wires can be accurately judged.

关 键 词：小波变换 钢丝绳 检测 断丝 奇异性分析 

分 类 号：TH7-55[机械工程—仪器科学与技术]