Visualization of temperature elevation in ultrasonic beam from circular piston

Author

Jungsoon Kim ; Jihee Jung ; Moojoon Kim ; Kanglyeol Ha

Author_Institution

Dept. of Media Eng., Tongmyong Univ., Busan, South Korea

fYear

2013

fDate

21-25 July 2013

Firstpage

1661

Lastpage

1664

Abstract

The temperature elevation due to ultrasound was investigated in a dissipative medium using gelatin with the thermochromic particle. As the ultrasonic source, a plane circular piezoelectric transducer was used. A thermochromism layer of 100 μm was inserted between two gelatin layers. The 670 kHz-ultrasound irradiated the medium for less than 1 min. The discolored area due to the ultrasound increased as the exposure time increases. Through the image processing, the temperature increasing tendency along the acoustic axis was confirmed experimentally.

Keywords

absorbing media; biomedical transducers; biomedical ultrasonics; gelatin; medical image processing; molecular biophysics; piezoelectric transducers; thermo-optical effects; ultrasonic imaging; ultrasonic transducers; acoustic axis; circular piston; dissipative medium; exposure time; frequency 670 kHz; gelatin layers; image processing; plane circular piezoelectric transducer; size 100 mum; temperature elevation visualization; thermochromic particle; thermochromism layer; ultrasonic beam; ultrasonic source; ultrasound irradiation; Biomedical measurement; Visualization; circular piston source; piezoelectric transducer; temperature elevation; ultrasound; visualization method;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0423

Filename

6725035