Abstract
The directional transmission of high-frequency sound waves is of great significance to the development of underwater communication and cell photoacoustic detection. In order to overcome the transmission loss of high-frequency sound waves, a new high-frequency sound wave directional transmission model based on acoustic metamaterials and graphene structures has been designed. The local sound field enhancement effect and directional transmission effect of this model on high-frequency sound waves were verified through finite element analysis. Using the special case of 450 kHz sound waves, the transmission effect of high-frequency sound waves in the model was studied. The result shows that the acoustic wave directional transmission model based on acoustic metamaterials and graphene structures had good high-frequency acoustic wave directional transmission characteristics. This research has important practical value in the research of underwater communication and cell photoacoustic detection.
Highlights
Water is a great sound wave transmission medium
High-frequency signals have the disadvantages of limited transmission distance and large transmission loss, which make the process of signal acquisition and processing more difficult
If we can realize the transmission of high-frequency underwater high-frequency acoustic signals, it will be of great significance to study the photoacoustic detection characteristics of cells
Summary
Water is a great sound wave transmission medium. The research on low-frequency underwater acoustic signal acquisition has gradually taken precedence.. There are problems in the research of high-frequency underwater acoustic signals. The acquisition of high-frequency underwater acoustic signals has attracted much attention in the field of medicine. The basic principle of cell photoacoustic detection is to generate a high-frequency sound wave signal under the action of a pulsed laser. The study of cell characteristics through the analysis of acoustic signals is realized. In the process of cell photoacoustic detection, the frequency of sound waves is so high that it can reach very high or ultrahigh frequencies. If we can realize the transmission of high-frequency underwater high-frequency acoustic signals, it will be of great significance to study the photoacoustic detection characteristics of cells
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