美国Piezotechnics 压电堆栈，尺寸可定制，用于高精度定位
美国Piezotechnics 压电堆栈
美国Piezotechnics 压电堆栈有多种形状和尺寸，从1 x 1到25 x 25 mm2不等。它们由电并联的堆叠压电板组成。
Piezotechnics 压电堆栈标称工作电压为0至150 V。这些致动器是“低压压电致动器”。Piezotechnics 压电堆栈还允许具有高达30V至150V的扩展驱动器电压范围的半双极操作。这种操作方法导致明显更大的位移。
裸堆栈非常适合集成到自定义机制中。当与其他致动器类型（如在相同力下的液压缸）相比时，压电堆栈通常具有较小的尺寸。Alos接口非常简单。压电堆栈是长方体，并且具有两根电线来控制元件。带有预应力机构的封装执行器是实现稳健系统集成的理想解决方案。
Piezotechnics 压电堆栈可以在极端环境中运行。适用于在低温、真空和外来环境（如高g场或振动）中操作。
有多种堆叠尺寸和选项可供选择。共烧多层压电堆的最大工作电压为150V。该堆的特点是高功率密度，为您的应用提供强大、精确和快速的驱动。Piezotechnics 压电堆栈允许在-30 V至150 V的电压下进行半双极操作。
Piezotechnics 压电堆栈主要可选：低温，真空，薄涂层，厚涂层，蓝宝石半球，应变仪。
美国Piezotechnics 压电堆栈标准型号如下，也可定制其他尺寸。
| 型号 | 尺寸[mm2] | 长度[mm] |
单级位移/双极位移 [um] |
电容[nF] | 绝缘[MOhm] | 谐振[kHz] | 刚度 kN/mm | 力[N] | |
| PB 3.9 | 3,5 x 3,5 | 9 | 9 | 13 | 350 | 50 | 152 | 50 | 400 |
| PB 3.18 | 3,5 x 3,5 | 18 | 20 | 28 | 800 | 10 | 76 | 22 | 400 |
| PB 5.9 | 5 x 5 | 9 | 9 | 13 | 800 | 50 | 152 | 100 | 850 |
| PB 5.18 | 5 x 5 | 18 | 20 | 28 | 1600 | 10 | 76 | 45 | 850 |
| PB 5.40 | 5 x 5 | 40 | 42 | 58 | 3400 | 5 | 34 | 22 | 850 |
| PB 7.18 | 7 x 7 | 18 | 20 | 28 | 3400 | 5 | 76 | 100 | 1700 |
| PB 7.40 | 7 x 7 | 40 | 42 | 58 | 6700 | 5 | 34 | 40 | 1700 |
| PB 10.18 | 10 x 10 | 18 | 20 | 28 | 6600 | 5 | 76 | 200 | 3500 |
| PB 10.40 | 10 x 10 | 40 | 42 | 58 | 13600 | 2 | 34 | 80 | 3500 |
| PB 14.18 | 14 x 14 | 18 | 20 | 28 | 11000 | 2 | 68 | 400 | 7000 |
| PB 25.15 | 25 x 25 | 15 | 16 | 21 | 31000 | 0,4 | 68 | 1300 | 20000 |
Piezotechnics 压电堆栈材料性能
| Item | Specified Data | Conditions |
| Operating temperature -25 to +85°C | When applied with a DC voltage: Ambient temperature | |
| When driven by an AC voltage: Ambient temperature + temperature rise due to generated heat | ||
| Maximum voltage | 150 VDC | Note: self-generated heat in case of dynamic operation |
| see part | 0 - 150 VDC unipolar | |
| Displacement | see part | -30 - 150 VDC semi-bipolar |
| The force required for restricting the | ||
| displacement to 0 when the maximum driving voltage is applied. | ||
| Capacitance | see part | f = 1kHz,V=1Vrms(<10 μ F) |
| f = 120Hz,V=1Vrms(>10 μ F) | ||
| Capacitance tolerance | +/ー20 % | Value obtained in 1 minute at 150 VDC |
| Dissipation factor | 5% or less | |
| Insulation resistance | see part | |
| Resonance frequency | see part | Typical value of the element under our test conditions |
| Tensile strength | 1/10 of Fblock | |
| Young's modulus | 4.4 × 1010 N/m2 | |
| Temperature cycle test | Room temperature (3 min) +85°C (30 min) | |
| Repetition of 10 cycles of the above | ||
| Poission ratio | 0.3 | |
| Displacement: | Initial value ±20% | |
| Capacitance: | Initial value ±30% | |
| Appearance: | No noticeable defect | |
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