As a leader in piezo transducers, piezo mechanisms, and precision motion control solutions, Physik Instrumente offers a line of standard and custom electro-ceramic hemispheres and hollow spheres for applications from echolocation to flow measurement. As a global leader in piezo actuators and sensors, these new components join the existing extensive catalog of disk, rods, cylinders, plates, blocks, rings, and tubes employed by high-tech research and industry fields, including medical engineering, mechanical engineering, aerospace, and semi-conductor applications.
Inverse Piezo Effect Applications
Piezo ceramics convert electrical power into mechanical power and vice versa; the inverse piezo effect is harnessed for its fast, precise motion and oscillation generation. For ultrasonic applications that require high bandwidth, hemispheres and hollow spheres are currently available with an outside diameter range from 10 – 60mm and 1mm wall thickness. Uses for electro-ceramic transducers range from the necessary and mundane to out-of-this-world scientific advancement: removing dental plaque, ultrasonic imaging, monitoring flow measurement or fill levels, preparing soil samples on Mars for spectroscopy.
Customizable
Made from ferroelectric soft or hard piezo materials, components can be custom-designed to match the requirements of the individual application with respect to the coupling factor and acoustic impedance. 
Standard and Custom
PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application.
Physik Instrumente
http://www.pi-usa.us/index.php
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