Simplified determination of parameters piezomaterial on samples of elements in the form of a disk

Abstract

Simplified determination of parameters piezomaterial on samples of elements in the form of a disk

  The approximate formulas for determination of planar electromechanical force factor and piezomodule in the disk-form samples without Poisson coefficient evaluation of the smallest (first) frequency equation root are derived. It simplifies procedure of measurements because measurement of frequency of the first overtone isn't required.

Keywords: piezomaterial, disk, planar electromechanical force factor, piezomodule, Poisson coefficient