Improved determination of q quality factor and resonance frequency in sensors based on the magnetoelastic resonance through the fitting to analytical expressions

9Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

Abstract

The resonance quality factor Q is a key parameter that describes the performance of magnetoelastic sensors. Its value can be easily quantified from the width and the peak position of the resonance curve but, when the resonance signals are small, for instance when a lot of damping is present (low quality factor), this and other simple methods to determine this parameter are highly inaccurate. In these cases, numerical fittings of the resonance curves allow to accurately obtain the value of the quality factor. We present a study of the use of different expressions to numerically fit the resonance curves of a magnetoelastic sensor that is designed to monitor the precipitation reaction of calcium oxalate. The study compares the performance of both fittings and the equivalence of the parameters obtained in each of them. Through these numerical fittings, the evolution of the different parameters that define the resonance curve of these sensors is studied, and their accuracy in determining the quality factor is compared.

Cite

CITATION STYLE

APA

Sisniega, B., Gutiérrez, J., Muto, V., & García-Arribas, A. (2020). Improved determination of q quality factor and resonance frequency in sensors based on the magnetoelastic resonance through the fitting to analytical expressions. Materials, 13(21), 1–15. https://doi.org/10.3390/ma13214708

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free