Characterization of polymer thin coating on substrate by acoustic resonant spectroscopy

Tomoya Sunaga, Hironori Tohmyoh, Manabu Suzuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A technique for characterizing thin polymer coatings utilizing an acoustic resonant phenomenon is reported. The acoustic properties (acoustic impedance, sound velocity and density) of a coating on a steel plate were determined by observing and analyzing the echo from the back of the plate. Then, acoustic resonant imaging was demonstrated by scanning with a focused ultrasonic transducer. The thickness distribution of the coating on the back of the steel plate was obtained from the acoustic resonant image and the determined velocity of sound in the coating.

Original languageEnglish
Pages (from-to)437-442
Number of pages6
JournalThin Solid Films
Publication statusPublished - 2013 Oct 1


  • Acoustic properties
  • Acoustic resonance
  • Polymer
  • Thickness
  • Thin coating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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