Abstract:
An experimental device for quasi-static measurements of piezoelectric moduli $d_{ijk}$, based on the possibilities of precision variations in mechanical stresses with the device DMA 242 C in the frequency range 0–100 Hz has been developed. A special sample holder and a charge amplifier are used in the measuring scheme. The measurements of piezoelectric moduli values of trigonal piezoelectric single crystalls La$_3$Ga$_5$SiO$_{14}$ (P321) and YAl$_3$(BO$_3$)$_4$ (R32), as well as hexagonal ZnO (P6$_3$mc) have been carried out.