发明名称 |
Method and apparatus for carrying out non-destructive testing of materials |
摘要 |
A method of testing a material sample for defects, comprising the steps of applying a test signal to the material sample, receiving a return signal from the material sample and analysing the return signal to determine whether the material sample is defective. In one aspect of the present invention the steps of receiving a return signal and analysing it include the step of selecting a frequency range to reduce the effect of potentially interfering signals. In another aspect of the present invention a reference signal obtained from a non-defective sample is subtracted from the return signal to give a difference result and the difference result is indicative of whether the material sample is defective. Apparatus for carrying out the above-defined methods are also provided.
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申请公布号 |
US7270004(B2) |
申请公布日期 |
2007.09.18 |
申请号 |
US20040474885 |
申请日期 |
2004.12.10 |
申请人 |
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION |
发明人 |
DICKINSON LAURENCE;THWAITES, LEGAL REPRESENTATIVE VIVONNE |
分类号 |
G01N29/42;G01N29/12 |
主分类号 |
G01N29/42 |
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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