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

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

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?

Original languageEnglish
Pages (from-to)4500-4504
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number5 B
DOIs
Publication statusPublished - 2006 May 25

Keywords

  • Ball SAW device
  • Hydrogen gas sensor
  • Mass loading
  • Quartz
  • Surface acoustic wave
  • Temperature compensation

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Temperature compensation for ball surface acoustic wave devices and sensor using frequency dispersion'. Together they form a unique fingerprint.

  • Cite this