Title :
High power piezoelectric characteristics of KNbO3 thick films by hydrothermal method
Author :
Mutsuo Ishikawa;Yosuke Uchida;Nobuaki Kosuge;Hiroshi Funakubo;Minoru Kurosawa
Author_Institution :
Dept. of Biomedical Engineering, Toin Univ. of Yokohama, 1416 Kuroganecho Aobaku Kanagawa Japan
Abstract :
Very high intensity and high frequency ultrasonic transducer using hydrothermal KNbO3 thick film was developed. The vibration velocity of surface of KNbO3 thick film was measured with thickness vibration mode. The amplitude of vibration velocity was 2.5m/s or over. And the radiation sound-pressure from the prototype ultrasonic transducer was measured at resonance frequency in degassed water. The radiation ultrasound was 4MPa or over.
Keywords :
"Ultrasonic transducers","Vibrations","Resonant frequency","Ultrasonic variables measurement","Prototypes","Frequency measurement","Thick films"
Conference_Titel :
Ultrasonics Symposium (IUS), 2015 IEEE International
DOI :
10.1109/ULTSYM.2015.0369
