Table 1 Properties of used piezoelectric material21.
From: Introduction of a novel frequency converter using piezoelectric vibrations modes
Parameter | Symbol | Value |
|---|---|---|
Electromechanical coupling coefficient | Kp | 0.60 |
K31 | 0.36 | |
K33 | 0.70 | |
K15 | 0.70 | |
Kt | 0.48 | |
Relative electric capacity rate of freedom | \({\varepsilon }_{{r}^{3}}^{T}\) | 1350 |
\({\varepsilon }_{{r}^{1}}^{T}\) | 1900 | |
Constant of elasticity (× 10–12 m2/N) | \({s}_{11}^{E}\) | 13 |
\({s}_{33}^{D}\) | 8.5 | |
\({s}_{55}^{D}\) | 21.5 | |
Piezoelectricity (× 10–12 m/v or C/N) | d31 | − 150 |
d33 | 320 | |
d15 | 530 | |
Mechanical quality factor | Qm | 400 |
Frequency constant (Hz.m) | Nd | 2200 |
N1 | 1600 | |
N3 | 2000 | |
N5 | 1230 | |
Nt | 2300 | |
The velocity of sound (m/s) | Vd | 3300 |
V1 | 3200 | |
V3 | 4000 | |
V5 | 2460 | |
Vt | 4600 | |
Density (× 103 kg/m3) | Ρ | 7.5 |
Curie’s temperature (℃) | Tc | 300 |
