Abstract: A composite ceramic transducer structure for use in the construction of an ultrasound probe includes a substrate and a plurality of piezoelectric transducer posts. The plurality of piezoelectric transducer posts are controllably formed on the substrate in a plurality of spatial positions located on an X-Y plane of the substrate. The plurality of piezoelectric posts includes a plurality of shapes defined in an X-Y-Z plane of the substrate, wherein the plurality of piezoelectric transducer posts are configured to facilitate minimizing shear waves within the ultrasound probe.

Abstract: A piezoelectric sensing device is described for measuring material thickness of targets such as pipes, tubes, and other conduits that carry fluids. The piezoelectric sensing device includes a piezoelectric element mounted to a flexible circuit with glass reinforced polyimide C-stage cover layers surrounding a pure polyimide C-stage core.