爆破振动信号的频谱分析  

Frequency Spectrum Analysis of Blasting Vibration Signals

作　　者：练友红[1] 王先义[1] 何刚[1] 陈庆[1] 

机构地区：[1]煤炭科学研究总院重庆分院,重庆400037

出　　处：《矿业安全与环保》2004年第1期49-52,共4页Mining Safety & Environmental Protection

摘　　要：利用富立叶变换理论,对爆破振动信号的不同周期形态进行频谱理论分析,得到不同形态下信号的波谱参数即主频和振幅,并运用DSVM-4C测振仪进行数据采集,得到一般状态下的信号波谱参数,从而可以加深对爆破振动信号的认识和分析。Frequency sp ectrum analysis was conducted on the different cycle and form of blasting vibra tion signals with Fourier transformation, the spectrum of signals in different form was obtained, i.e. the basic fre-quency and amplitude. DSVM-4C vibration me ter was used for data acquisition and spectrum parameters of signals in normal state were obtained, this thus deepens the recognition and analysis of blasting vi-bration signals.

关 键 词：频谱分析 爆破 振动信号 傅立叶变换 振幅谱 相位谱 功率谱函数 

分 类 号：TD235[矿业工程—矿井建设] O174.2[理学—数学]