Model-Free Control for Dynamic-Field Acoustic Manipulation Using Reinforcement Learning

Kourosh Latifi, Artur Kopitca, Quan Zhou

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
130 Downloads (Pure)

Abstract

Dynamic-field acoustic manipulation techniques benefit numerous applications in microsystem assembly, pattern formation, biological research, tissue engineering, and lab-on-a-chip. These techniques generally rely on a theoretical dynamic model of particle motion in the acoustic field. Accordingly, success of the manipulation task highly depends on the accuracy of the employed dynamic model. However, modelling such dynamic behavior is a great challenge in more advanced acoustic manipulation devices and requires significant simplifications. Here, we introduce a model-free control method based on reinforcement learning for highly-dynamic acoustic manipulation devices. In our method, the controller does not need a prior knowledge of the acoustic field and learns the optimal control policy for each manipulation task by merely interacting with the acoustic field. As a proof-of-concept, we apply our method to a classic acoustic manipulation device, a Chladni plate consisting of a centrally-actuated vibrating plate. By employing the controller, we demonstrate successful manipulation of single and multiple particles towards target locations on the plate surface. The model-free control method is not limited to the Chladni plate and can be potentially applied to a broad range of acoustic manipulation devices as well as other forms of field-based micromanipulation systems, where accurate theoretical modelling of the field is challenging.
Original languageEnglish
Article number8968432
Pages (from-to)20597-20606
Number of pages10
JournalIEEE Access
Volume8
DOIs
Publication statusPublished - 24 Jan 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Acoustic manipulation
  • Chladni plate
  • Dynamic-filed acoustic device
  • Model-free control
  • Real-time control
  • Reinforced learning

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