A continuous motional series resonant frequency monitoring circuit and a new method of determining Butterworth-Van Dyke parameters of a quartz crystal microbalance in fluid media

被引:22
作者
Arnau, A [1 ]
Sogorb, T [1 ]
Jiménez, Y [1 ]
机构
[1] Univ Politecn Valencia, Dept Ingn Elect, Lab Integrado Bioingn, Valencia, Spain
关键词
D O I
10.1063/1.1150649
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new electronic design for continuous monitoring of the motional series resonant frequency of a quartz crystal microbalance either in vacuum or in single-face contact with a fluid medium is presented. The motional resistance is directly measured and a simple method for measuring L and C parameters of the Butterworth-Van Dyke equivalent circuit is described. The results are in agreement with impedance analyzer measurements. (C) 2000 American Institute of Physics. [S0034-6748(00)04806-1].
引用
收藏
页码:2563 / 2571
页数:9
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