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Title:
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Comparison between sine wave fitting and zero- crossing methods applied to QCM impedance measurements
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Author:
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Chávez Domínguez, Juan Antonio; García Hernández, Miguel J.; Millán Blasco, Oliver; Tur Gaspar, Ignasi; Turó Peroy, Antonio; Amer, Miquel Àngel; Salazar Soler, Jorge
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GSS - Grup Sistemes Sensors |
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Abstract:
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This paper presents a comparison between two
algorithms for sinusoidal signal characterization applied to QCM
impedance measurements. These algorithms are the zero crossing
and peak detection method and the 7 parameters sine-fitting
method. Simulation and experimental results from both methods
are shown in order to determine which method provides the best
performance in terms of accuracy. Obtaining a precise value of
the QCM impedance depends directly on the precise
measurement of the amplitude and phase of two sinusoidal
voltages. It was found that the sine-fitting method achieves better
results without an excessive associated computational burden.
These results will be applied to the development of a new
technique for biofilm characterization based on multiple QCM
impedance measurements. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura
-Electronic apparatus and appliances -- Congresses
-Phase estimation
-Amplitude estimation
-Sinusoid fitting
-QCM impedance characterization
-Electrònica -- Aparells i instruments -- Congressos |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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