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METHOD FOR IMAGING SURFACE ROUGHNESS USING ACOUSTIC EMISSIONS INDUCED BY ULTRASOUND
METHOD FOR IMAGING SURFACE ROUGHNESS USING ACOUSTIC EMISSIONS INDUCED BY ULTRASOUND
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机译:利用超声引起的声发射对表面粗糙度进行成像的方法
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摘要
A method for measuring variations of the surface of an object using acoustic energy in the audio range is provided. Imaging fine surface roughness on the order of few microns is achievable by using a vibroacoustography technique. This technique provides a method for imaging surface roughness on the basis of an ultrasound radiation force that stimulates acoustic emissions at an ultrasound standing wave field. The present invention may be employed as a tool for the nondestructive inspection and imaging of the surface variations of an object.
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