Simultaneous measurement of acoustic pressure and temperature in the HIFU fields using all-silica fiber optic Fabry-Perot hydorophone

Dai-Hua Wang; Lu-Yu Zeng; Ping-Gang Jia; Lei Liu; Xin-Yin Jiang

doi:10.1117/12.2072502

11 November 2014 Simultaneous measurement of acoustic pressure and temperature in the HIFU fields using all-silica fiber optic Fabry-Perot hydorophone

Dai-Hua Wang, Lu-Yu Zeng, Ping-Gang Jia, Lei Liu, Xin-Yin Jiang

Author Affiliations +

Proceedings Volume 9274, Advanced Sensor Systems and Applications VI; 92740T (2014) https://doi.org/10.1117/12.2072502
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Accurately measuring the acoustic pressure distributions and the size of the focal regions of high-intensity focused ultrasound (HIFU) fields, as well as the temperature induced by the HIFUs, are significant for ensuring the efficiency and safety of treatments. In our previous work, a tip-sensitive all-silica fiber-optic Fabry–Perot (TAFOFP) ultrasonic hydrophone for measuring HIFU fields is developed. In this paper, we explore the possibility that utilizing the TAFOFP ultrasonic hydrophone to simultaneously measure the acoustic pressure of HIFU fields and the induced temperature. The TAFOFP ultrasonic hydrophone for simultaneously measuring the acoustic pressure and temperature is developed and the experiment setup for measuring the HIFU fields based on the developed TAFOFP ultrasonic hydrophone is established. The developed TAFOFP ultrasonic hydrophone is experimentally tested in the degassed water and tissue phantom to verify the possibility of simultaneously measuring the acoustic pressure and temperature. Experimental results show that the sensing system can simultaneously measure the acoustic pressure and temperature.

Citation Download Citation

Dai-Hua Wang, Lu-Yu Zeng, Ping-Gang Jia, Lei Liu, and Xin-Yin Jiang "Simultaneous measurement of acoustic pressure and temperature in the HIFU fields using all-silica fiber optic Fabry-Perot hydorophone", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92740T (11 November 2014); https://doi.org/10.1117/12.2072502

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