학술논문
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
Document Type
Conference
Author
Source
2010 IEEE International Ultrasonics Symposium Ultrasonics Symposium (IUS), 2010 IEEE. :2239-2242 Oct, 2010
Subject
Language
ISSN
1051-0117
1948-5727
1948-5719
1948-5727
1948-5719
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.