Fabrication of Piezoelectric Thickness-Shear-Mode Acoustic Wave Sensing Device and its Application

作者: Zhong Cao , Yun Lin Dai , Zuo Shan Duan , Ming Zhen Zhang , Liang Xue

DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.97-101.4261

关键词:

摘要: The piezoelectric thickness-shear-mode (TSM) acoustic wave sensing device was fabricated by coating with a calixarene derivative on the surface of gold electrode quartz crystal, then connecting transistor-transistor-logic (TTL) oscillator, frequency counter and computer. Among four materials, compound I most efficient active material for adsorption carbinol molecule based host-guest recognition mechanism. In comparison gas chromatography (GC) method, TSM can be used on-line determination poisonous vapor in range 0 ~ 3000 ppm around our living environment good selectivity, reproducibility high stability. detection limit evaluated to 1.41 ppm.

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