壓電驅(qū)動SR環(huán)形疊層是一種高性能的多層驅(qū)動器，具有真空兼容的聚合物涂層和大的中心孔徑。SR環(huán)堆棧與壓電驅(qū)動放大器和驅(qū)動模塊的范圍完全匹配。應(yīng)用領(lǐng)域包括：光學(xué)、顯微鏡、納米定位和精密加工。
規(guī)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 |
安裝
堆疊致動器不應(yīng)承受顯著的拉伸載荷、不均勻分布的載荷、離軸載荷、彎矩或扭矩。
推薦的最大拉伸載荷為阻隔力的10%。在需要雙向力或高速運動的應(yīng)用中，建議預(yù)緊力大于最大拉伸載荷。這意味著執(zhí)行器總是處于壓縮狀態(tài)。推薦的最大預(yù)載量為阻塞力的50%。
推薦驅(qū)動器
| 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 |
壓電性能
壓電材料類似于PZT-5H和海軍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 |
