Fabrication of high frequency spherically shaped ceramic transducers

  title={Fabrication of high frequency spherically shaped ceramic transducers},
  author={G. R. Lockwood and D. H. Turnbull and F. S. Foster},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
Difficulty in obtaining well focused efficient ultrasound transducers has limited the development of new high frequency applications of B-mode imaging. This paper describes a method for fabricating high frequency (53 MHz) spherically focused lead zirconate titanate (PZT) transducers. A transducer is fabricated by bonding a malleable backing layer onto a thin plate of PZT and then pressing the plate into a spherically shaped well. The backing layer evenly distributes stresses across the material… CONTINUE READING


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