ULTRASONIC AIR TRANSDUCER ARRAYS USING POLYMER PIEZOELECTRIC FILMS AND IMPEDANCE MATCHING STRUCTURES FOR ULTRASONIC POLYMER TRANSDUCER ARRAYS

摘要

An ultrasonic transducer array structure (100) including: a first lattice structure (120) including a first plurality of arcuated (122) and clamping thin walls (126); a second lattice structure (133) including a second plurality of arcuated (134b) and clamping thin walls (136a); and a polymer piezoelectric film (110) held between the first (120) and second (133) lattice structures, the arcuated (122, 134b) and clamping thin walls (126, 136a) of the first (120) and second (133) lattice structures forming the film (110) into an array of curved transducer elements.