Computation of Equivalent Circuit Parameters of QCM and Evaluation of the Measurement Uncertainties

DOI

10.2991/emeit.2012.424How to use a DOI?

Keywords

quartz crystal microbalance, equivalent circuit parameters, measurement uncertainty

Abstract

This paper presents an approach of computing the parameters of quartz crystal microbalance (QCM) equivalent circuit model using the least squares algorithm in MATLAB. Modification of the measured data’s order in the least squares algorithm was implemented so that the precision was im-proved. Compared with nonlinear least squares algorithm, the computation method in this paper was faster and simpler with little lower accuracy. Moreover, Monte Carlo Method was utilized to evaluate the measurement uncertainties. An experiment on the temperature response of QCM’s equivalent circuit parameters was performed to show that the proposed approach was accurate and fast. The measurement errors are less than 0.6%.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rui Zheng
AU  - Xiaofeng Meng
AU  - Shuo Wang
AU  - Yang Lv
PY  - 2012/09
DA  - 2012/09
TI  - Computation of Equivalent Circuit Parameters of QCM and Evaluation of the Measurement Uncertainties
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 1919
EP  - 1922
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.424
DO  - 10.2991/emeit.2012.424
ID  - Zheng2012/09
ER  -