压电驱动SR环形叠层是一种高性能的多层驱动器，具有真空兼容的聚合物涂层和大的中心孔径。SR环堆栈与压电驱动放大器和驱动模块的范围完全匹配。应用领域包括：光学、显微镜、纳米定位和精密加工。
规格
| Order Code |
Range +/-10% |
Length | OD | ID | Cap. +/-20% |
Blocking Force |
Stiffness | Resonance Frequency |
||
| SR080410 | 14um | 10mm | 8mm | 4.5mm | 0.8uF | 1300N | 130N/um | 150kHz | ||
| SR080418 | 28um | 18mm | 8mm | 4.5mm | 1.6uF | 1300N | 65N/um | 83kHz | ||
| SR120610 | 14um | 10mm | 12mm | 6mm | 2.4uF | 3000N | 220N/um | 150kHz | ||
| SR120620 | 30um | 20mm | 12mm | 6mm | 5.0uF | 3000 N | 100N/um | 75kHz |
安装
堆叠致动器不应承受显著的拉伸载荷、不均匀分布的载荷、离轴载荷、弯矩或扭矩。
推荐的最大拉伸载荷为阻隔力的10%。在需要双向力或高速运动的应用中，建议预紧力大于最大拉伸载荷。这意味着执行器总是处于压缩状态。推荐的最大预载量为阻塞力的50%。
推荐驱动器
| Amplifier | Application |
| PDm200B | General purpose, low cost |
| MX200 | High Current, Low noise, low cost |
| PDu150 | Ultra-low noise |
| PD200 | High speed, low noise |
| PX200 | High current, low noise |
压电性能
压电材料类似于PZT-5H和海军VI型。
| Property | Symbol | Value | Unit |
|---|---|---|---|
| Piezoelectric constants | d33 | 600 | 10-12 m/V |
| d31 | -270 | 10-12 m/V | |
| g33 | 19.4 | 10-3 Vm/N | |
| g31 | -9.2 | 10-3 Vm/N | |
| Electro-mechanical coupling coefficients |
Kp | 0.65 | NA |
| Kt | 0.37 | NA | |
| K31 | 0.38 | NA | |
| Frequency constant | Np | 1980 | Hz-m |
| Nt | 1950 | Hz-m | |
| N31 | 1450 | Hz-m | |
| Elastic constant | Y33 | 5.3 | 1010 N/m2 |
| Y11 | 7.2 | 1010 N/m2 | |
| Q Factor | Qm | 80 | NA |
| Dielectric constant | e33 ⁄ e0 | 3500 | @1 kHz |
| Dissipation factor | tan δ | 2.5 | % @ 1 kHz |
| Currie Temperature | Tc | 220 | C |
| Density | ρ | 7.8 | g/cm3 |
