Title :
Model and measurements of the electrical input impedance of a plate-liquid-plate acoustic resonator
Author :
Padilla, Frédéric ; Gindre, Marcel ; Le Huérou, Jean-Yves
Author_Institution :
Lab. d´´Imagerie Parametrique, Paris VI Univ., France
fDate :
5/1/2001 12:00:00 AM
Abstract :
A plate-liquid-plate acoustic resonator is used to measure the acoustic velocity of liquids. An analytical model of the electrical input impedance of the resonator is proposed. Theoretical results are compared with experimental measurements using reference liquids. Accuracy of the sound velocity calculation is found to be better than 1%. Finally, factors limiting the achievable accuracy are discussed.
Keywords :
acoustic resonators; electric impedance; equivalent circuits; ultrasonic transducers; ultrasonic velocity measurement; 1D model; Mason equivalent circuit model; achievable accuracy; acoustic velocity measurement; analytical model; electrical input impedance; piezoelectric plates; plate-liquid-plate acoustic resonator; reference liquids; three-layer model; Acoustic measurements; Acoustic transducers; Analytical models; Attenuation; Bandwidth; Electric variables measurement; Frequency; Impedance measurement; Liquids; Piezoelectric transducers; Acoustics; Electric Impedance; Models, Theoretical;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
