Application of a DC-bias to reduce acceleration sensitivity in quartz resonators

Issue title: SES 2004

Article type: Research Article

Authors: Yong, Yook-Kong^{a; *} | Patel, Mihir S.^a

Affiliations: [a] Civil and Environmental Engineering, Rutgers University, Piscataway, NJ 08854, USA

Correspondence: [*] Corresponding author. E-mail: yyong@rci.rutgers.edu

Abstract: A quartz resonator subjected to acceleration will deform due to inertial effects. The deformation stresses and strains in the plate will in turn cause a shift in the resonator frequencies. A method is proposed to actively minimize the inertial stresses and strains by a DC-bias electric field. Finite element models are created to calculate the effects of acceleration on resonant frequency and to compare the results with experimental data. The non-linearity and non-homogeneity induced by the inertial forces are modeled by using the concept of a superposed state. The model results for the acceleration effects are shown to compare well with the experimental results. The models are then used to calculate the effects of a DC electric field bias and to demonstrate the reduction of acceleration sensitivity.

DOI: 10.3233/JAE-2005-692

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 22, no. 1-2, pp. 69-82, 2005