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Terahertz imaging non-destructive inspection systems and methods
Terahertz imaging non-destructive inspection systems and methods
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机译:太赫兹成像无损检测系统和方法
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摘要
Provided are systems and methods using terahertz imaging techniques for performing non-destructive inspection of a structure for detection of surface recesses. A method may involve applying a terahertz-frequency absorbing liquid to a surface of the structure, whereby the liquid will naturally tend to flow into surface recesses present in the surface of the structure, removing excess liquid from the surface of the structure which has not penetrated into existing recesses in the surface of the structure, and, after excess liquid has been removed from the surface of the structure, transmitting electromagnetic radiation in the terahertz frequency range toward the surface of the structure and detecting reflections of radiation which is not absorbed at the surface of the structure. A system may use a liquid applicator, excess liquid remover, a terahertz transmitter, and a terahertz receiver to perform a terahertz imaging non-destructive inspection operation.
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