A piezoelectric polymer cavitation sensor installed in an emulsion generation microchannel device and an evaluation of cavitation state

Takefumi Kanda, Masaki Yabumoto, Koichi Suzumori

Research output: Contribution to journalArticle

Abstract

In previous works, ultrasonic emulsification was realized using small microchannel devices oscillated by piezoelectric transducers. By using the devices, the emulsification in the flow process was also realized. In these devices, the driving frequency was higher than 2MHz. This value is higher than the maximum audible field. On the other hand, the frequency is too high to utilize the cavitation effect. This is because the cavitation threshold depends on the frequency. The aim of this study is to confirm the cavitation state in the microchannel device using a piezoelectric polymer sensor. A micropatterned cavitation detection sensor has been fabricated by a photolithography technique and evaluated in a highintensity ultrasound field. The emulsification state in the microchannel device has been evaluated using the fabricated sensor.

Original languageEnglish
Article number07KE07
JournalJapanese Journal of Applied Physics
Volume55
Issue number7
DOIs
Publication statusPublished - Jul 1 2016

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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