Experimental analysis of temperature elevation in ultrasonic beam from circular piston

The temperature distribution change due to plane ultrasound was analyzed experimentally with the ultrasonic visualization method. A thermochromic film inserted in the acoustic dissipative medium made of gelatin changed color because of the heat caused by the ultrasound propagation. From the image da...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2014-07, Vol.53 (7S), p.7-1-07KF14-3
Main Authors: Kim, Jungsoon, Jung, Jihee, Kim, Moojoon, Ha, Kanglyeol
Format: Article
Language:English
Subjects:
Beams (radiation)
Color
Discoloration
Dissipation
Elevation
Pistons
Temperature distribution
Ultrasound
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Summary:The temperature distribution change due to plane ultrasound was analyzed experimentally with the ultrasonic visualization method. A thermochromic film inserted in the acoustic dissipative medium made of gelatin changed color because of the heat caused by the ultrasound propagation. From the image data of the discolored area on the film and the temperature change measured with a point-type thermal sensor, a temperature function of the value of the pixel data on the image was obtained. Using this function, the temperature distribution can be estimated noninvasively.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.53.07KF14