QUARTZ TUNING FORK SERIES

Jakoby B, Art G, Bastemeijer J (2005) Novel analog readout electronics for microacoustic thickness shear-mode sensors. Sens Actuators A 145:131–138įerrari M, Ferrari V, Marioli D (2010) Interface circuit for multiple-harmonic analysis on quartz resonator sensors to investigate on liquid solution microdroplets. IEEE Trans Instrum Meas 50(5):1119–1122įerrari M, Ferrari V, Kanazawa K (2008) Dual-harmonic oscillator for quartz crystal resonator sensors. doi: 10.1088/0960-1317/08įerrari V, Marioli D, Taroni A (2001) Improving the accuracy and operating range of quartz microbalance sensors by a purposely designed oscillator circuit. Sens Actuators B 192(2014):664–672įan XZ, Siwak NP, Ghodssi R (2011) An adaptive feedback circuit for MEMS resonators. Appl Phys Lett 96:154102ĭufour I, Lemaire E, Caillard B, Debéda H, Lucat C, Heinrich SM, Josse F, Brand O (2014) Effect of hydrodynamic force on microcantilever vibrations: applications to liquid-phase chemical sensing. Sens Actuators A 159(2010):174–183Ĭastille C, Dufour I, Lucat C (2010) Longitudinal vibration mode of piezoelectric thick-film cantilever-based sensors in liquid media.

Rev Sci Instrum 71(6):2563–2571Ĭassiède M, Paillol JH, Pauly J, Daridon J-L (2010) Electrical behavior of AT-cut quartz crystal resonators as a function of overtone number.

QUARTZ TUNING FORK SERIES

In order to track density and viscosity of different fluids we have measured two parameters by various techniques: the resonance frequency and the quality factor.Īrnau A, Sogorb T, Jiménez Y (2000) A continuous motional series resonant frequency monitoring circuit and a new method of determining Butterworth-Van Dyke parameters of a quartz crystal microbalance in fluid media. These measurements were compared with the results obtained with low-cost electronic circuits also developed in this work. Electrical impedance measurements were performed to characterize the performance of both resonators in various liquid media over a wide range of viscosities. The second resonator is a commercially available millimeter-sized quartz tuning fork, working at 32.7 kHz.

One of the resonators is a state-of-the-art micron-sized AlN-based rectangular plate, actuated in the first extensional mode in the MHz range. Here we describe two in-plane movement based resonators and their capability to assess oil dilution with diesel and biodiesel fuels. For example, tracking the viscosity of lubricating oils is of great importance because they are exposed to dilution with diesel fuel as result of late-injection processes, which are essential for regenerating diesel particulate filters.

Real time monitoring of the physical properties of liquids is of great concern in the automotive industry.

Quartz tuning fork