Thin-film piezoelectric acoustic sensors. Application to the detection of hydrocarbons

被引:15
作者
Dorojkine, LM [1 ]
Volkov, VV [1 ]
Doroshenko, VS [1 ]
Lavrenov, AA [1 ]
Mourashov, DA [1 ]
Rozanov, LA [1 ]
机构
[1] NS Kurnakov Gen & Inorgan Chem Inst, Ctr Chem Sensors, RAS, Moscow 117907, Russia
关键词
thin-film; piezoelectric; acoustic sensors; hydrocarbons;
D O I
10.1016/S0925-4005(97)00260-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A novel. based on thin film high-frequency piezotransducer chemical gas sensor was developed and studied in detail. We call it thin film piezoelectric acoustic sensor (TFPAS). It was found to be sensitive in the ppm level to various hydrocarbon vapours in air. The response of the sensors to the presence of the hydrocarbon vapours tasted (propane, pentane, hexane, commercial petrol) was found to be linear within a wide range of the vapour concentrations used. Theoretical model of TFPAS operation as well as potential advantages of the sensor designed are discussed. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:488 / 494
页数:7
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