Modeling and performance of uncoated microcantilever-based chemical sensors

被引：30

作者：

Tetin, Sebastein ^{[1
]}

Caillard, Benjamin ^{[1
]}

Menil, Francis ^{[1
]}

Debeda, Helene ^{[1
]}

Lucat, Claude ^{[1
]}

Pellet, Claude ^{[1
]}

Dufour, Isabelle ^{[1
]}

机构：

[1] Univ Bordeaux, IMS Lab, F-33405 Talence, France

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 143卷 / 02期

关键词：

Resonant microcantilever; Chemical detection; Gas mass density; Gas viscosity; Binary mixture;

D O I：

10.1016/j.snb.2009.09.062

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Chemical sensors based on vibrating Silicon microcantilevers without sensitive coating are investigated herein. The sensor signal is the relative variation of the microcantilever resonant frequency which depends on both the viscosity and the density of the fluid surrounding the microcantilever. This principle has been applied to the detection of binary gas Mixtures. Experimental data for He/N-2 and CO2/N-2 environments are presented and compared to results of theoretical modeling. The advantages of such a gas sensor based on changes of physical properties are discussed (response time, sensitivity, selectivity, stability). (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：555 / 560

页数：6

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