Page 111 - 《应用声学》2020年第5期

第 39 卷 第 5 期 Vol. 39, No. 5
2020 年 9 月 Journal of Applied Acoustics September, 2020

⋄ 研究报告 ⋄

双细胞光声信号的有限元分析 ∗

赵荣荣 杨 鹏 韩建宁 †

(中北大学信息与通信工程学院 太原 030051)

摘要：为了分析两个相同的细胞在不同距离下光声信号的特性，对细胞及环境进行了有限元分析。创建了不
同距离的双细胞模型和相同环境下的单细胞模型。通过双细胞模型，得到了主体细胞在受到不同距离的另一
个细胞的影响下，其不同角度的频域声压级曲线；通过单细胞模型，得到了单个细胞未受到影响时，其不同角
度的频域声压级曲线。将主体细胞与单细胞频域声压级曲线进行相似度比较。结果表明，在受到不同距离的
细胞影响下，主体细胞各角度的频域声压级曲线，存在与单细胞相似度极高的曲线，且距离为 26.6 µm 时，相似
度最高。该研究表明，在两个双凹形红细胞距离适当时，细胞间的光声信号相互影响最小。
关键词：双细胞；光声；距离；相似度
中图法分类号: Q819 文献标识码: A 文章编号: 1000-310X(2020)05-0753-09
DOI: 10.11684/j.issn.1000-310X.2020.05.014

Finite element analysis of double cell photoacoustic signals

ZHAO Rongrong YANG Peng HAN Jianning

(School of Information and Communication Engineering, North University of China, Taiyuan 030051, China)

Abstract: In order to analyze the characteristics of photoacoustic signals of two identical cells at different
distances, finite element analysis was carried out on the cells and the environment. Two cell models with
different distances and a single cell model in the same environment are created. Through the two cell model,
the frequency domain sound pressure level curves of the main cell at different angles under the influence of
another cell with different distances are obtained. Through the single cell model, the frequency domain sound
pressure level curves at different angles are obtained when a single cell is not affected. The frequency domain
sound pressure level curves of main cells and single cells were compared for similarity. The results show that
under the influence of cells at different distances, the frequency domain sound pressure level curves of the main
cells at various angles have curves with extremely high similarity to single cells, and the similarity is the highest
when the distance is 26.6 µm. This study shows that when the distance between the two biconcave red blood
cells is appropriate, the photoacoustic signals between the cells have minimal interaction.
Keywords: Double cells; Photoacoustic; Distance; Similarity

2019-11-21 收稿; 2020-03-31 定稿
中国博士后科学基金项目, 国家自然科学基金项目
∗
作者简介: 赵荣荣 (1995– ), 女, 山西临汾人, 硕士研究生, 研究方向: 生物医学工程。
† 通信作者 E-mail: hanjn46@nuc.edu.cn