Composite ultrasonic transducer array operating in the K31 mode

摘要

An ultrasonic transducer array element operating in the k31 mode is formed by two piezoelectric subelements joined to form a 2-2 composite by a conductive filler material. An energizing potential is applied to the conductive filler material, and a return potential is applied to the outer opposing faces of the subelements. Preferably the conductive filler material comprises a conductive epoxy. Arrays of such elements in one and two dimensions are formed with the conductive epoxy in alternating kerfs in a row being connected to the opposing polarities of an energizing potential.