论文标题
圆柱管的最佳设计，用于在COVID-19诊断中诊断的声学听诊器
The optimal design for cylindrical tubes used as acoustic stethoscopes for auscultation in COVID-19 diagnosis
论文作者
论文摘要
在Covid-19爆发期间，心脏和肺部声音的听觉在对确认病例的全面诊断和实时监测中起着重要作用。由于临床医生穿着隔离病房的防护服，中国医务人员的一线治疗Covid-19，它是一种安全且灵活的替代品的马铃薯芯管听诊器。在这项研究中，基于声波指导的基本理论提出了针对这种简单圆柱听筒的最佳设计。对均匀无损管中的截止频率，声音传输系数和声波传播的分析为选择这种简单的圆柱听觉检查器选择几何参数提供了理论指导。此外，关于内壁的表面处理以及使用降噪耳塞的相关建议也是这种最佳设计的一部分。
During the COVID-19 outbreak, the auscultation of heart and lung sounds has played an important role in the comprehensive diagnosis and real-time monitoring of confirmed cases. With clinicians wearing protective clothing in isolation wards, a potato chip tube stethoscope, which is a secure and flexible substitute for a conventional stethoscope, has been used in the first-line treatment of COVID-19 by Chinese medical workers. In this study, an optimal design for this simple cylindrical stethoscope is proposed based on the fundamental theory of acoustic waveguides. Analyses of the cut-off frequency, sound power transmission coefficient, and sound wave propagation in the uniform lossless tube provide theoretical guidance for selecting the geometric parameters for this simple cylindrical stethoscope. In addition, relevant suggestions about surface treatments for the inner wall as well as the use of noise-reduction earplugs are also part of this optimal design.
