Calculation of electrical impedance of oscillating piezoceramic disk in the area of high frequencies

• Main Authors: K.V. Bazilo, V.S. Antoiyuk, L.H. Polonskyi, V.D. Holovnia
• Format: Article
• Language: English
• Published: Zhytomyr Polytechnic State University 2020-06-01
• Series: Технічна інженерія
• Subjects: thin disk; piezoelectric ceramics; electrical impedance; material particles displacement vector
• Online Access: http://ten.ztu.edu.ua/article/view/206208/206446

The relevance of the use of various functional elements of piezoelectronics in power and information systems is due primarily to their high reliability. As a result of research of mathematical model of the real device it is possible to define a specific set of geometrical, physical-mechanical and electric parameters of real object which provides realization of technical indicators of a functional element of piezoelectronics stipulated in the technical task. This significantly reduces the time and cost of developing new functional elements of piezoelectronics. In the article, a system of differential equations in partial derivatives is solved on the basis of the averaging method and a mathematical model of the electrical impedance of a piezoceramic disk in the high frequency zone, where the displacement vector of material particles is determined by radial and axial components.