High frequency acoustic microscopy with Fresnel zoom lens

The acoustic field distributions and the convergent beams generated by the planar-structure Fresnel zone transducers on solid surface are investigated. Because only 0 and 180 degree phase transducers are used, an imaging system with the Fresnel zoom lens could work at very high frequency, which over...

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Bibliographic Details
Published in:Science China. Physics, mechanics & astronomy mechanics & astronomy, 2007-02, Vol.50 (1), p.41-52
Main Authors: Qiao, DongHai, Li, ShunZhou, Wang, ChengHao
Format: Article
Language:English
Subjects:
Acoustic imaging
Acoustic microscopy
Acoustics
Flaw detection
Fresnel zones
Fused quartz
Phased arrays
Solid surfaces
Sound fields
Transducers
Very high frequencies
Zoom lenses
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