A new liquid sensor based on a piezoelectric resonator with a radial electric field

Зайцев, Б. Д.; Semyonov, A. P.; Teplykh, А. Е.; Бородина, И. А.

doi:10.1016/j.ultras.2021.106603

Cited by 4 publications

(2 citation statements)

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“…It is known that the piezoelectric resonator is characterized by such parameters as the resonant frequency and quality factor of the series and parallel resonances, as well as the maximum values of the real part of the electrical impedance and admittance [ 9 ]. Therefore, based on the measurement results, we plotted the dependences of the resonant frequency of the parallel ( F par ) and series ( F ser ) resonances, the maximum values of the real parts of the electrical impedance ( R max ) and admittance ( G max ), as well as the quality factors of the parallel ( Q par ) and series ( Q ser ) resonances on the volume concentration of the powder particles in the suspension for the quartz resonator.…”

Section: Preparation Of Suspensions and Experimental Proceduresmentioning

confidence: 99%

“…Sometimes, there is a need to determine the mechanical properties of liquids as well as mixtures based on liquid and solid particles with high accuracy [ 7 ]. A similar need arises when monitoring the state of various reservoirs, wastewater, and groundwater, as well as in areas of science such as biology, medicine, food, pharmaceutical and in the gas- and oil-producing industry [ 8 , 9 , 10 , 11 ]. In this case, the choice of sensors is determined by factors such as the reliability, accuracy, commercial availability, and ease of use [ 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Glycerol-Based Suspensions on the Characteristics of Resonators Excited by a Longitudinal Electric Field

Semyonov

Зайцев

Teplykh

et al. 2023

Sensors

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This study examines the effect of suspensions based on pure glycerol and diamond powder with different concentrations on the characteristics of resonators with a longitudinal electric field. We used two disk resonators made of the quartz and langasite plates with round electrodes on both sides of the plate and resonant frequencies of 4.4 and 4.1 MHz, operating in shear and longitudinal acoustic modes, respectively. Each resonator was mounted on the bottom of a 30 mL liquid container. During the experiments, the container was filled with the suspension under study in such a way that the resonator was completely immersed in the suspension, and the frequency dependences of the real and imaginary parts of the electrical impedance of the resonator were measured. As a result, the shear modulus of the elasticity and shear coefficient of the viscosity of the studied suspensions were determined. The material constants of the suspensions were found by fitting the theoretical frequency dependences of the real and imaginary parts of the electrical impedance of the resonator to the experimentally measured ones, which was calculated using Mason’s equivalent circuit. As a result, the dependencies of the density, shear modulus of elasticity, shear viscosity coefficient, and velocity of the shear acoustic wave on the volume concentration of the diamond particles were constructed.

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Section: Preparation Of Suspensions and Experimental Proceduresmentioning

confidence: 99%