郑州大学学报（工学版）2016，Vol.37Issue(6)：6-9,23,5.DOI:10.13705/j.issn.1671-6833.2016.03.026
基于穴番-A敏感膜的新型声表面波瓦斯传感器
A New Cryptophane A-Coated SAW Methane Gas Sensor
摘要
Abstract
In view of the current situation that the traditional methane sensor technology is difficult to imple-ment the field detection and monitor on methane gas, a novel room-temperature SAW methane gas sensor coa-ted with cryptophane-A sensing interface is proposed by utilizing the supermolecular compound cryptophane-A’ s specific clathration to methane molecules. The sensor was composed of differential resonator-oscillators with excellent frequency stability, a supra-molecular CrypA coated along the acoustic propagation path, and a frequency acquisition module. The supramolecular CrypA was synthesized from vanillyl alcohol using a three-step method and deposited onto the surface of the sensing resonators via dropping method. Fast response and excellent repeatability were observed in gas sensing experiment, and the estimated detection limit and meas-ured sensitivity in gas dynamic range of 0 . 2% ~5% was evaluated as ~0 . 05 % and ~184 Hz/%, respec-tively. The measured results indicated the SAW sensor was promising for under-mine methane gas detection and monitor.关键词
声表面波/瓦斯传感器/穴番-A/谐振型振荡器Key words
urface acoustic wave/methane gas sensor/cryptophane-A/resonator-oscillators分类
通用工业技术引用本文复制引用
王文,胡浩亮,何世堂,潘勇,张彩红..基于穴番-A敏感膜的新型声表面波瓦斯传感器[J].郑州大学学报（工学版）,2016,37(6):6-9,23,5.基金项目
国家自然科学基金资助项目(11374254 （）
11274340) （）
