发明名称 |
Frequency broadband measurement of the characteristics of acoustic waves |
摘要 |
Frequency broadband measurement of the characteristics of acoustic waves propagating in an object is disclosed. A time domain signal processing is described, based on narrow-band filtering of wide-band acoustic wave pulses and cross-corelation which permits to measure both phase and group velocities as a function of frequency.
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申请公布号 |
US5035144(A) |
申请公布日期 |
1991.07.30 |
申请号 |
US19890386771 |
申请日期 |
1989.07.31 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA |
发明人 |
AUSSEL, JEAN-DANIEL |
分类号 |
G01N29/07;G01N29/24;G01N29/34;G01N29/42 |
主分类号 |
G01N29/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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