Accession Number : ADD013274

Title :   Broad Bandwidth Composite Transducers.

Descriptive Note : Patent, Filed 29 Jan 82, patented 27 Nov 84,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Klicker, Kenneth A ; Newnham, Robert E ; Cross, Leslie E ; Bowen, Leslie J

Report Date : 27 Nov 1984

Pagination or Media Count : 5

Abstract : A broad bandwidth electro-mechanical transducer is shaped into a wedge of varying thickness, with a plurality of PZT elements or sheets embedded in an inactive polymer. The transducer is driven at frequencies corresponding t resonance of the thickness dimensions. The piezoelectric elements with different thicknesses are decoupled mechanically from one another using an inactive polymer of low Q so as to prevent interference. (Patent)

Descriptors :   *PATENTS, *PIEZOELECTRIC TRANSDUCERS, *BROADBAND TRANSDUCERS, *LEAD TITANATES, *POLYMERS, RESONANCE, BANDWIDTH, ELECTROMECHANICAL DEVICES, PIEZOELECTRIC MATERIALS, ZIRCONIUM COMPOUNDS, INVENTIONS

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE