Hydrophone with hydrothermally deposited lead zirconate titanate poly-crystalline film on titanium film as acoustic receiving surface for estimation of high power acoustic field by HIFU

Author

Takeuchi, Shinichi ; Yoshimura, Kazuho ; Yagi, Hitomi ; Kawashima, Norimichi ; Uchida, Takeyoshi ; Yoshioka, Masahiro ; Kikuchi, Tsuneo ; Okuno, Tetsuji ; Kurosawa, Minoru

Author_Institution

Toin Univ. of Yokohama, Yokohama, Japan

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

2239

Lastpage

2242

Abstract

It is difficult to use conventional hydrophones for measurement of high power ultrasound with acoustic cavitation by high intensity focused ultrasound (HIFU), because a front electrode of a piezoelectric element in conventional type hydrophone was decorticated by acoustic cavitation and high sound pressure. We fabricated new toughness type hydrophones using titanium membrane acoustic receiving surface and hydrothermally synthesized lead zirconate titanate film for measurement of HIFU. We measured the acoustic field distribution (sound pressure distribution) by HIFU equipment (Frequency: 1.6 MHz). Acoustic power of HIFU is setting from 10 to 250 W Our new type hydrophone by using for HIFU equipment could receive high intensity focused ultrasound without broken.

Keywords

acoustic field; acoustic intensity; acoustic receivers; biomedical ultrasonics; hydrophones; lead compounds; piezoelectric thin films; piezoelectric transducers; ultrasonic focusing; HIFU equipment; HIFU measurement; PZT; acoustic cavitation; acoustic field distribution; acoustic power; acoustic receiving surface; frequency 1.6 MHz; front electrode; high intensity focused ultrasound; high power acoustic field estimation; high power ultrasound; hydrothermally deposited lead zirconate titanate polycrystalline film; piezoelectric element; power 10 W to 250 W; sound pressure distribution; titanium film; titanium membrane; toughness type hydrophone; Acoustic measurements; Acoustics; Films; Sonar equipment; Titanium; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1948-5719

Print_ISBN

978-1-4577-0382-9

Type

conf

DOI

10.1109/ULTSYM.2010.5935863

Filename

5935863