Acoustic driven microbubble motor device

Onder Dincel, Tsuyoshi Ueta, Jun Kameoka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We have developed an acoustic frequency driven microbubble motor (AFMO) device and achieved high-speed rotation up to 450 RPM and torque of 2.3 × 10-9 (N.m). Additionally, the bidirectional rotation of this device has been demonstrated by modulating input frequencies. This device, directly constructed from UV curable resin by a micro-3D printer, has four microscale cavities that contain micro air bubbles when immersed in water. Once external 4 kHz acoustic waves stimulate these four cavities, microbubbles are extracted and positioned at the entrances of the cavities. These four microbubbles have identical dimensions and oscillation resonant frequencies of 5.6 kHz based on theoretical calculations that can spin the AFMO device in a clockwise direction. Both the clockwise and the counterclockwise rotation of the AFMO device have observed at a 5.6 and 5.1 kHz frequency input, respectively.

Original languageEnglish
Pages (from-to)343-347
Number of pages5
JournalSensors and Actuators, A: Physical
Publication statusPublished - 2019 Aug 15
Externally publishedYes


  • Acoustic micromotor
  • Microbubble oscillation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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