发明名称 |
Method for non-destructively testing construction elements |
摘要 |
A method of non-destructively testing construction elements accessible from only one side by measuring their resonant oscillations to detect flaws in them without scanning. A test piece (1) is excited with a narrow band ultrasonic oscillation whose frequency is varied; the amplitudes of the resonant oscillations are measured and plotted in an xy coordinate system against the frequency of the exciting ultrasonic oscillations.
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申请公布号 |
US4383446(A) |
申请公布日期 |
1983.05.17 |
申请号 |
US19810248601 |
申请日期 |
1981.03.27 |
申请人 |
ROEDER, ECKHARD |
发明人 |
ROEDER, ECKHARD;FLAKE, WOLFGANG |
分类号 |
G01N29/04;G01N3/32;G01N29/12;(IPC1-7):G01N29/04 |
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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