生物医学工程研究2024，Vol.43Issue(3)：238-245,8.DOI:10.19529/j.cnki.1672-6278.2024.03.09
基于碳纳米管和聚二甲基硅氧烷的光声换能器研究
Study on photoacoustic transducers based on the carbon nanotubes and polydimethylsiloxane
摘要
Abstract
In order to explore the influence of laser parameters and the photoacoustic conversion layer's thickness on the output pressure of the photoacoustic transducer,the physical model of the photoacoustic transducer was established by COMSOL simulation software.Firstly,based on polydimethylsiloxane(PDMS)and carbon nanotube(CNT),the conversion layer models of CNT and CNT-PDMS were established,respectively.Secondly,the laser pulse duration and thickness of the conversion layer were varied to measure the output sound pressure of the conversion layer.Finally,the changes in the transducer output sound pressure intensity caused by the laser pulse duration and the thickness of the conversion layer were analyzed.The results showed that the transducer could output ultra-sonic waves with higher sound pressure intensity when the thickness of both CNT and CNT-PDMS conversion layers was 200 μm,and the laser pulse duration was 10～30 ns and about 50 ns,respectively.These simulation results have certain guiding significance for the research of photoacoustic transducer.关键词
复合薄膜/光声效应/有限元模拟/光吸收/热膨胀/激光能量密度Key words
Composite film/Photoacoustic effect/Finite element simulation/Light absorption/Thermal expansion/Laser energy density分类
医药卫生引用本文复制引用
王甲琼,赵攀云,李梦雨,赵树林,蒋文帅,任武,赵宗亚,于毅,范晓峰..基于碳纳米管和聚二甲基硅氧烷的光声换能器研究[J].生物医学工程研究,2024,43(3):238-245,8.基金项目
河南省本科高校大学生创新创业训练计划项目(202310472010) （202310472010）
河南省科技攻关项目(242102310480). （242102310480）
