发明名称 |
DEVICE FOR EVALUATING DETERIORATION AND ESTIMATING STRENGTH BY USING ULTRASOUND WAVES AND METHOD FOR EVALUATING DETERIORATION AND ESTIMATING STRENGTH BY USING SAME |
摘要 |
Provided is an apparatus for assessing degradation and estimating strength by using ultrasound, in which the apparatus includes: an ultrasound transmitting unit making an ultrasound signal having a single frequency be incident in an inspected object; an ultrasound receiving unit receiving the ultrasound signal penetrating the inspected object or reflected on the inspected object; a signal processing unit calculating a propagation speed through a time interval of the ultrasound signal received by the ultrasound receiving unit and separates the received ultrasound signal into a fundamental frequency component and a harmonic component to calculate non-linear parameter, and measuring linear and non-linear elastic coefficients by using the propagation speed and the non-linear parameter; and a strength estimating unit obtaining a tensile curve by using the linear and non-linear elastic coefficients and estimating at least one of tensile strength and yield strength by using the tensile curve. |
申请公布号 |
EP3151001(A1) |
申请公布日期 |
2017.04.05 |
申请号 |
EP20150798761 |
申请日期 |
2015.04.30 |
申请人 |
Industry - University Cooperation Foundation Hanyang University |
发明人 |
JHANG, Kyung Young;KIM, Jong Beom |
分类号 |
G01N29/04;G01H17/00;G01N29/22;G01N29/36;G01N29/44 |
主分类号 |
G01N29/04 |
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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