Frequency Shift of Thickness-Shear Vibrations of AT-Cut Quartz Resonators Due to a Liquid Layer with the Electrode Stiffness Considered

Jing, Yun; Jin, Chen; Xiao, Chen; Gong, Xun

doi:10.1109/tuffc.2007.389

Cited by 10 publications

(1 citation statement)

References 9 publications

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“…Several prior studies have examined the relationship between clock frequency signals and temperature in electronic devices. Crystal oscillators are generally used as clock oscillators for electronic components such as CPUs and hardware clocks, and it has long been known that the frequency response of such crystal transmitters varies with temperature depending on the method used to cut the crystal [9]- [12]. The correlation of frequency with temperature has also been studied [13], and a Temperature Compensated Crystal Oscillator (TCXO) and compensation methods using temperature characteristics have been proposed [14], [15].…”

Section: B Contribution Of This Researchmentioning

confidence: 99%

Extraction of Computer-Inherent Characteristics Based on Time Drift and CPU Core Temperature

et al. 2020

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The number of computers that provide information services via the Internet is constantly increasing, particularly for IoT applications. Compared to the servers in managed data centers, IoT computers have an increased risk of contamination from unidentified computers. It is therefore important for applications that utilize IoT to identify the appropriate computers to use. However, it is difficult to assign digital identifiers with adequate protection to a huge number of IoT computers. In this work, we have devised a method to extract computer-specific features from the characteristics of the CPU core temperature and the drift of the time information. This feature data can be treated as computer-specific information, just like human biometric information. We performed experiments on two types of computer (three of each) with the same software settings and obtained a regression linear equation for each that represents the time deviation per temperature. The correlation coefficients of these equations were greater than 0.9 for all, and a strong positive correlation was obtained. From the equation and the temperature values, we found that it is possible to estimate the computer-specific time deviation. Our method does not require the implementation of a special temperature sensor. Therefore, it shows good potential for future applications.

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Section: B Contribution Of This Researchmentioning

confidence: 99%

Extraction of Computer-Inherent Characteristics Based on Time Drift and CPU Core Temperature

et al. 2020

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Effects of surface impedance on current density in a piezoelectric resonator for impedance distribution sensing

Liu

Wang

et al. 2021

Appl. Math. Mech.-Engl. Ed.

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We study the relationship between the surface mechanical load represented by distributed acoustic impedance and the current density distribution in a shear mode piezoelectric plate acoustic wave resonator. A theoretical analysis based on the theory of piezoelectricity and trigonometric series is performed. In the specific and basic case when the surface load is due to a local mass layer, numerical results show that the current density concentrates under the mass layer and is sensitive to the physical as well as geometric parameters of the mass layer such as its location and size. This provides the theoretical foundation for predicting the surface impedance pattern from the current density distribution, which is fundamental to the relevant acoustic wave sensors.

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Frequency shift prediction of a shear mode multi-layered FBAR sensor in viscous media using transfer matrix method

Zhao

Qian

Yong

2021

Applied Mathematical Modelling

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Frequency Shift of Thickness-Shear Vibrations of AT-Cut Quartz Resonators Due to a Liquid Layer with the Electrode Stiffness Considered

Abstract: Thickness-shear vibrations of an AT-cut quartz resonator due to a liquid layer are studied. Closed form solutions are obtained with electrodes considered. Effect of the shear stiffness of electrodes on frequency shifts is presented.

Cited by 10 publications

References 9 publications

Extraction of Computer-Inherent Characteristics Based on Time Drift and CPU Core Temperature

Extraction of Computer-Inherent Characteristics Based on Time Drift and CPU Core Temperature

Effects of surface impedance on current density in a piezoelectric resonator for impedance distribution sensing

Frequency shift prediction of a shear mode multi-layered FBAR sensor in viscous media using transfer matrix method

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