Title :
An ultrasonic Gaussian transducer with a spherical button electrode
Author :
Huang, Dehua ; Breazeale, M.A.
Author_Institution :
Nat. Center for Phys. Acoustics, Mississippi Univ., University, MS, USA
Abstract :
An ultrasonic transducer with a Gaussian profile has been made by using a spherical button electrode. The theory behind this design is developed. In addition to ease of fabrication, this transducer combines the advantages of Gaussian transducers using electrical fringing and electrode shaping methods. The experimental results with a 2.03-MHz transducer with a 1-in diameter show that sidelobe suppression is at least 31 dB, and that the sound field agrees very well with the theoretical prediction
Keywords :
ultrasonic transducers; 1 in; 2.03 MHz; electrical fringing; electrode shaping methods; fabrication; sidelobe suppression; sound field; spherical button electrode; theory; ultrasonic Gaussian transducer; Acoustic transducers; Arm; Electrodes; Fresnel reflection; Gaussian distribution; Piezoelectric materials; Piezoelectric transducers; Strips; USA Councils; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234210
