Piezo Technology Inc.

Other

Harry F Tiersten

Robert C Smythe

Pankaj K Das

John F McDonald

A crystal resonator having reduced acceleration sensitivity in which the resonator blank having one or more electrodes thereon has stiffening cover plates mounted to its top and bottom faces and spaced from the resonator blank by sidewalls.

Crystal resonator having reduced acceleration sensitivity

A transducer array comprising a large number of separated sets of electrodes plated on a single piezoelectric plate of uniform thickness is described. Each set of electrodes is made to act essentially independently by placing them sufficiently far apart and employing an essentially trapped energy mode.

Monolithic mosaic piezoelectric transducer utilizing trapped energy modes

A resonator and resonator type wave filter formed by a piezoelectric body on which acoustic surface waves are guided and reflected and in which mode coupling in a direction transverse to the surface wave propagation is utilized. The transverse modes are controlled so as to provide improved response characteristics by minimizing suppressing and/or otherwise controlling unwanted modes of vibration in the body.

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Schenectady, NY, United States of America

Harry F Tiersten