Title :
Evaluation of small ultrasonic probe using lead zirconate titanate poly-crystal film deposited by hydrothermal method
Author :
Hasegawa, Tomohito ; Takeuchi, Shinichi
Author_Institution :
Minoru Kuribayashi Kurosawa, Tokyo Inst. of Technol., Yokohama, Japan
Abstract :
The present study evaluates the characteristics of a small ultrasound probe using PZT polycrystalline film deposited by a hydrothermal synthesis method. With the hydrothermal synthesis method, PZT film is deposited only on the titanium by reaction in the solution. Utilizing this feature, a PTZ polycrystalline film was deposited on the end face by a hydrothermal synthesis of a material with only its titanium wire end face exposed. This transducer was built into a small ultrasound probe and the characteristics were evaluated. As a result, we succeeded in the fabrication of a wideband ultrasound probe with a distance resolution of 32 mum, a frequency bandwidth of 50 MHz in the range of 25 to 74 MHz, and a fractional bandwidth of 99 %.
Keywords :
lead compounds; liquid phase deposition; piezoelectric materials; piezoelectric thin films; ultrasonic transducers; PZT; frequency 25 MHz to 74 MHz; hydrothermal synthesis method; lead zirconate titanate polycrystal film; transducer; wideband ultrasound probe fabrication; Biomedical imaging; Electrodes; Frequency; Piezoelectric materials; Probes; Titanium compounds; Ultra wideband technology; Ultrasonic imaging; Ultrasonic transducers; Wire; PZT; evaluation; hydrothermal method; ultrasound probe;
Conference_Titel :
Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4970-5
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2009.5307552
