发明名称 |
Method and apparatus for resonant frequency identification through out-of-plane displacement detection |
摘要 |
A method for out-of-plane displacement detection is disclosed. The out-of-plane displacement is detected by analyzing all the fringe density indexes calculated using the frequency-domain information extracted from a series of interference images of the sample vibrating at different frequencies. The present invention further discloses a method and an apparatus for resonant frequency identification by detecting the peak value of all the fringe indexes calculated at different scanning frequencies. With the identified resonant frequency, the full-field vibratory surface profile of the sample in various resonance modes can be reconstructed.
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申请公布号 |
US8035820(B2) |
申请公布日期 |
2011.10.11 |
申请号 |
US20100837419 |
申请日期 |
2010.07.15 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSITUTE;UNIV NAT TAIPEI TECHNOLOGY |
发明人 |
CHEN LIANG-CHIA;CHANG CHUNG-CHU;HUANG YAO-TING;CHEN JIN-LIANG |
分类号 |
G01B11/02 |
主分类号 |
G01B11/02 |
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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