In a phased array acoustic transducer which has elements of different sizes, the piezoelectric material of large elements is subdiced to produce smaller segments to limit the overall piezoelectric segment size variation within the array to up to 55% or more without significant adverse effect on phased...http://www.google.fr/patents/US5099459?utm_source=gb-gplus-shareBrevet US5099459 - Phased array ultrosonic transducer including different sized phezoelectric segments
Phased array ultrosonic transducer including different sized phezoelectric ...
