METHOD AND DEVICE OF DIAGNOSING DAMAGE OF STRUCTURAL OBJECT
| Foreign code | F120007035 |
|---|---|
| Posted date | Nov 19, 2012 |
| Country | EPO |
| Application number | 09710589 |
| Gazette No. | 2246695 |
| Date of filing | Feb 12, 2009 |
| Gazette Date | Nov 3, 2010 |
| International application number | WO2009JP52311 |
| Date of international filing | Feb 12, 2009 |
| Priority data |
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| Title | METHOD AND DEVICE OF DIAGNOSING DAMAGE OF STRUCTURAL OBJECT |
| Abstract |
In the diagnosis of a structure, at least one electromechanical transducer is fixed to a structure as an object of diagnosis and is driven with an alternating voltage of a constant amplitude, and a current flowing through the at least one electromechanical transducer is measured. Next, high frequency components around a driving frequency of the electromechanical transducer are separated from a signal of the current. Next, modulation information due to a damage is extracted from amplitude and/or phase demodulation of the high frequency components. Then a damage index is evaluated based on the modulation information. Thus, structural health can be diagnosed with use of at least one electromechanical transducer, without baseline data, in one measurement. |
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| IPC(International Patent Classification) |
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| U.S. Cl./(Sub) |
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| Specified countries | AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LI,LT,LU,LV,MC,MK,MT,NL,NO,PL,PT,RO,SE,SI,SK,TR |
Contact Information for " METHOD AND DEVICE OF DIAGNOSING DAMAGE OF STRUCTURAL OBJECT "
- National University Corporation Kyoto Institute of Technology Intellectual Property,Research Promotion
- URL: http://www.ipo.kit.ac.jp/
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E-mail:
- Address: 1,Matsugasaki Hashikami-cho, Sakyo-ku, Kyoto-shi, Kyoto, Japan , 606-8585
- Fax: 81-75-724-7030
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