Temperature compensation for ball surface acoustic wave devices and sensor using frequency dispersion

Takuya Nakatsukasa, Shingo Akao, Tsuneo Ohgi, Noritaka Nakaso, Takuji Abe, Kazushi Yamanaka

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We propose a new temperature compensation method for ball surface acoustic wave (SAW) devices using frequency dispersion. This method distinguishes the temperature effect independent of frequency and surface effects such as mass loading or elastic effects linearly dependent on frequency. After stating the principle of the method, we verify it by fabricating ball SAW devices with an interdigital transducer (IDT) that works at two frequencies, and apply them to the measurement of the coating of albumin on the surface of the device and on a hydrogen gas sensor with a surface-coated sensing film. Delay time measurements are carried out at two frequencies, and the difference in delay time is calculated to eliminate temperatureindependent effects. Because the results clearly show surface effects without temperature disturbance, it is a difficult to realize sensors using ball SAW devices?

本文言語English
ページ(範囲)4500-4504
ページ数5
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
45
5 B
DOI
出版ステータスPublished - 2006 5月 25
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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