A dry-contact method for transmitting higher frequency components of ultrasound

Hironori Tohmyoh, Masumi Saka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Although it is possible to achieve higher resolution by conventional ultrasonic technique, it suffers from a disadvantage because testing has to be performed in a liquid medium. In contrast with the conventional technique, a dry-contact ultrasonic technique, which can be carried out without wetting the testing parts, is preferable. In a new technique that is developed by the authors, a dry-contact interface is used by inserting a membrane between water and the tested parts. Experiments were also carried out in search of membrane that can transmit higher frequency components. Dry-contact ultrasonic transmission using two kinds of plastic films and a silicone rubber sheet was performed on an acrylic resin. It was shown that the plastic films far excel in transmitting higher frequency components than the silicone rubber sheet.

Original languageEnglish
Pages (from-to)31-39
Number of pages9
JournalInternational Journal of Applied Electromagnetics and Mechanics
Issue number1-3
Publication statusPublished - 2003


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