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次声信号数据采集系统的研制
http://www.100md.com 《第四军医大学学报》 2001年第6期
次声,,次声;数据收集;压力仓,0引言,1次声检测系统技术指标,2系统的结构,3次声信号数据采集系统软件组成,4次声数据采集系统的测试,5讨论,参考文献
     关键词: 次声;数据收集;压力仓

    摘 要: 次声信号数据采集系统所采集的是0~20Hz的次声信号,该信号通过传声器转换为相应的电压信号.计算机实时采集、处理次声信号,分析次声信号的各主要频率成分和强度大小,对分析结果进行图形显示,曲线自动输出,并生成、打印最终结果.

    Development of infrasound signal data collecting system

    YI Nan,CHEN Jing-Zao,LI Ling,JIA Ke-Yong Department of Physiotherapy&Rehabilitation,Xi-jing Hospital,Fourth Military Medical University,Xi'an710033,China

    Keywords:infrasound;data collection;pressure chamber

    Abstract:Infrasound signal frequency of0~20Hz was col-lected by infrasound signal data collecting system.Sound col-lecting apparatus transformed the signal into voltage signal correspondingly.The computer analyzed the mainly frequen-cy and the density of the infrasound and also illustrated the results and gave printing curves automatically.

     0 引言

    次声是频率低于20Hz的弹性波 ......

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