Delaunay Thomas, Clezio Emmanuel L, Guennou Mael, Dammak Hichem, Thi Mai Pham, Feuillard Guy
Université François Rabelais de Tours, ENI Val de Loire, Laboratoire UltraSons Signaux et Instrumentation, FRE 2448 CNRS, Rue de la Chocolaterie, BP3410, 41034 Blois cedex, France.
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Feb;55(2):476-88. doi: 10.1109/TUFFC.2008.665.
An experimental setup based on the electrical excitation of a piezoelectric sample is proposed for resonant ultrasound spectroscopy measurements. The detection of the mechanical vibrations is performed by means of a laser interferometer. At the same time, the free vibrations of piezoelectric parallelepipeds of tetragonal and hexagonal symmetries are modeled taking into account the effect of the sample metalization. The paper presents the full elastic, piezoelectric and dielectric tensors of two PMN-34.5%PT ceramic and PZN-12%PT single crystal cubes.
本文提出了一种基于压电样品电激励的实验装置，用于共振超声光谱测量。通过激光干涉仪检测机械振动。同时，考虑样品金属化的影响，对四方和六方对称的压电平行六面体的自由振动进行了建模。本文给出了两个PMN-34.5%PT陶瓷和PZN-12%PT单晶立方体的完整弹性、压电和介电张量。
