Title :
Differential phase contrast in the acoustic microscope
Author :
Smith, Ivor R. ; Wickramasinghe, H.K.
Author_Institution :
University College London, Department of Electrical & Electronic Engineering, London, UK
Abstract :
A differential phase contrast acoustic microscope is described which compares the responses of adjacent points on the specimen. The improved stability of this measurement permits extended integration periods. Thus we anticipate sensitive measurements of acoustic velocity distributions with the high spatial resolution of the acoustic microscope.
Keywords :
acoustic microscopes; acoustic wave velocity measurement; ultrasonic equipment; acoustic microscope; differential phase contrast; extended integration periods; ultrasonic phase imaging techniques;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820063
