Scientific Reports (Aug 2024)

Experimental research on the horizontally getting together behaviors of acoustically manipulated bi-particle

  • Jiaxin Wu,
  • Liqun Wu,
  • Zeen Wang,
  • Haiping Liu,
  • Yaxing Wang,
  • Hongcheng Wang,
  • Linan Zhang,
  • Long Zhuang

DOI
https://doi.org/10.1038/s41598-024-70267-z
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 10

Abstract

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Abstract This study aims at the controllability of acoustically manipulated non-contact aggregation of bi-particle. Based on the acoustic wave radiation model of the transducer and the acoustic wave interference theory, the mathematical model between the spatial levitation point and the phase of the phased array ultrasonic array unit is established. A double-sided phased array test system was developed and the phase calculation algorithm for independently manipulating bi-particle was optimized. The algorithm is capable of independently distributing the energy applied to each levitation point. Through simulation and experiment, the horizontally aggregation characteristics of two levitated particles are investigated, and a interesting relationship between particles aggregation and standing wave phase difference is revealed, which follows the law of “attraction in the same phase but repulsion in the opposite phase”. By adjusting the tilt angle of the standing wave acoustic trap, the critical distance when particles to accelerate and collision is sharply reduced from 1.5λ to 0.5λ, which provides a new perspective and potential application path for acoustic manipulation technology.

Keywords