Analysis of ball surface acoustic wave sensor response to wide variety of gases using gas chromatography

Naoya Iwata, Takuji Abe, Toshihiro Tsuji, Tsuyoshi Mihara, Shingo Akao, Kazushi Yamanaka

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


It is necessary to detect a wide variety of dangerous gases for environment assessment and security. Gas chromatography using a gas separation column has been used for this purpose; however, a compact and high-performance system has not yet been established. Thus, we propose a new approach to measure gases using a ball surface acoustic wave (SAW) sensor, after separating them using gas separation columns. In this work, amplitude responses were observed for mixed alcohol gases. With water-ethanol mixed gas, both delay time and amplitude responses were observed, and different response and recovery times were found for these responses. Also, an amplitude response reflecting the leaky loss of SAW was observed and an approximate equation of leaky loss was derived to quantitatively evaluate the roles of leaky loss and other parameters observed in the ball SAW sensor. These results suggest that the proposed approach is promising for developing compact and high-performance multigas sensors.

Original languageEnglish
Pages (from-to)4532-4536
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number7 B
Publication statusPublished - 2007 Jul 26


  • Ball SAW
  • Gas chromatography
  • Leaky loss
  • Multigas sensor
  • Separation column

ASJC Scopus subject areas

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


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