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Currently, there are two main methods for studying the acoustic radiation force on tiny particles in acoustic tweezers. The acoustic ray method is approximately applicable when the wavelength of the sound wave is relatively small compared to the scattering body, and diffraction is ignored. In this case, only the particle nature of the sound wave is considered, not its wave nature. The strength of the sound field can be represented by the density of the sound rays, i.e., the ray theory of sound waves is used to calculate the acoustic radiation force. The acoustic ray method is simple, fast, and reliable. However, its application range is narrow, limited to cases where the size of the object is much larger than the wavelength of the sound wave.

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Calculation of Acoustic Radiation Force on Spherical Particles Based on Acoustic Ray Method

  • 章节

  • 发表日期：

    2025年

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  • Xiaozhou Liu,
  • Hairong Zheng

摘要

Currently, there are two main methods for studying the acoustic radiation force on tiny particles in acoustic tweezers. The acoustic ray method is approximately applicable when the wavelength of the sound wave is relatively small compared to the scattering body, and diffraction is ignored. In this case, only the particle nature of the sound wave is considered, not its wave nature. The strength of the sound field can be represented by the density of the sound rays, i.e., the ray theory of sound waves is used to calculate the acoustic radiation force. The acoustic ray method is simple, fast, and reliable. However, its application range is narrow, limited to cases where the size of the object is much larger than the wavelength of the sound wave.