Wearable transparent PVDF transducer for photoacoustic imager in body sensor network

Ya Han Liu, Fu Sung Lin, Li Xiang Chen, Hsin Yi Su, You Chi Hsu, Soma Pal, Yeong Her Wang, Chih Hsien Huang

研究成果: Conference contribution

摘要

A wearable transparent ultrasonic transducer was demonstrated with superior photoacoustic (PA) imaging performance regarding 116.8% -3dB fractional bandwidth, 4.75MHz center frequency, and 20times 20times 36text{mm}-{3} volumetric imaging field. The wearable sensor was fabricated by sputtering 150nm thick amorphous Indium tin oxide (ITO) on the both sides of a 110um commercial Polyvinylidene fluoride (PVDF) film. A 532nm Nd:YAG laser with 5ns pulse width was used to generate co-register photoacoustic signals by delivering light into subjects through ITO and PVDF. A pencil lead with 0.3mm in diameter was used to evaluate the lateral resolution (400um). A 3D alphabet phantom made by a 3D printer were successfully imaged by self-designed PAI system. In Summary, the potential of using this acoustic sensor as a PA imager of wearable body sensor network applications was positive based on the results.

原文English
主出版物標題IUS 2020 - International Ultrasonics Symposium, Proceedings
發行者IEEE Computer Society
ISBN(電子)9781728154480
DOIs
出版狀態Published - 2020 九月 7
事件2020 IEEE International Ultrasonics Symposium, IUS 2020 - Las Vegas, United States
持續時間: 2020 九月 72020 九月 11

出版系列

名字IEEE International Ultrasonics Symposium, IUS
2020-September
ISSN(列印)1948-5719
ISSN(電子)1948-5727

Conference

Conference2020 IEEE International Ultrasonics Symposium, IUS 2020
國家United States
城市Las Vegas
期間20-09-0720-09-11

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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