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New CW imaging mode for scanning acoustic microscopy

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3 Author(s)
Faridian, F. ; University College London, Department of Electrical & Electronic Engineering, London, UK ; Somekh, M.G. ; Sakai, I.

The application of frequency-modulated continuous waves (FMCW) to the scanning acoustic microscope (SAM) is described. The technique provides a convenient way of separating specimen topography from reflectivity while enjoying the advantages of pulse compression. Furthermore, the system will enable sophisticated signal processing to be carried out at audio frequencies.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 15 )