Abstract
Cell photoacoustic detection of acoustic signals has serious problems of transmission loss and difficulty in acquisition. Based on the acoustic transmission characteristics of acoustic supermaterials, the acoustic wave directional transmission model is designed using COMSOL software, and a finite element simulation experiment was carried out. Experiments show that the model designed in this paper has good sound wave focusing and acoustic wave directional transmission effects. According to the specific application in different environments, this paper designs a variety of transmission models with different structures and carries out comparative experiments to verify the influence of complex model structures on the directional transmission of sound waves. At the same time, the experimental analysis of the acoustic wave directional transmission effect of the model under different frequency segments is carried out, and the possibility of acoustic wave logic operation is verified. Models can be applied to high frequency acoustic signal acquisition and sound wave transmission in complex environments. These studies have important significance for the development of cell photoacoustic detection technology and the application of metamaterial structures and have good practical merit.
Highlights
With the development of biotechnology, the realization of directed culture of cells has become one of the focuses of attention
Aiming at the characteristics of acoustic signal transmission, this paper proposes the use of metamaterial structures to realize the directional transmission of Ultrahigh frequency (UHF) acoustic signals
Through the above theoretical analysis, we can find that the intensity of the evanescent wave is exponentially attenuated with the change of the distance, and the collection of the ultrahigh frequency acoustic signal generated by the cell is difficult
Summary
With the development of biotechnology, the realization of directed culture of cells has become one of the focuses of attention. In the process of cell culture, it is necessary to find a way to detect cells effectively. Traditional detection methods have some problems and deficiencies in the application process. Ultrahigh frequency (UHF) sound waves are generated during cell photoacoustic detection. Due to the limitation of the transmission characteristics of high-frequency acoustic signals, the acquisition of acoustic signals is relatively difficult. The realization of directional transmission of acoustic signals is of great significance for their collection and analysis. In this paper, aiming at the demand of acoustic signal transmission in cell photoacoustic detection, combined with the characteristics of high-frequency acoustic wave transmission, a method suitable for directional transmission of UHF acoustic signals is studied
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