Piezo elements are used in military and commercial sonar systems for position finding activities. Location of surface and subsurface vessels, depth measurement, surveying, fish location, and communication are several of the more common sonar applications. Piezoelectric ceramic materials have high bandwidth and can quickly respond by applying high force at low power levels. These materials are generally unaffected by environmental factors such as humidity and temperature. CTS materials can be formed to customer specifications and are available in a wide range of geometries with dimensions up to 150 mm or thicknesses less than 100 microns. Our materials sustain high levels of drive voltage and provide excellent coupling factors in sonar applications.