Research of electrical impedance of piezoelectric disk with sector electrodes

Currently leading manufacturers of electronic components serially produce a rather extensive list of elements, in which various microelectromechanical structures, such as various accelerometers, resonators and electrical signals filters implemented on their basis, transformers and other microminiature electromechanical systems, are included. Piezoelectric disks with partial covering by electrodes of one or two surfaces are often used to create various functional piezoelectronic devices. Disks with sector covering by electrodes are almost the main element of many microelectromechanical systems. The purpose of this article is to research electrical impedance of disk piezoceramic transformers with sector electrodes