Title :
New CW imaging mode for scanning acoustic microscopy
Author :
Faridian, F. ; Somekh, M.G. ; Sakai, I.
Author_Institution :
University College London, Department of Electrical & Electronic Engineering, London, UK
Abstract :
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.
Keywords :
acoustic microscopy; acoustic signal processing; nondestructive testing; CW imaging mode; FMCW; SAM; audio frequencies; frequency-modulated continuous waves; pulse compression; pulse mode; scanning acoustic microscope; scanning acoustic microscopy; separating specimen topography from reflectivity; signal processing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860549
