美國Piezotechnics 壓電堆棧有多種形狀和尺寸,從1 x 1到25 x 25 mm2不等。它們由電并聯的堆疊壓電板組成。
Piezotechnics 壓電堆棧標稱工作電壓為0至150 V。這些致動器是“低壓壓電致動器”。Piezotechnics 壓電堆棧還允許具有高達30V至150V的擴展驅動器電壓范圍的半雙極操作。這種操作方法導致明顯更大的位移。
裸堆棧非常適合集成到自定義機制中。當與其他致動器類型(如在相同力下的液壓缸)相比時,壓電堆棧通常具有較小的尺寸。Alos接口非常簡單。壓電堆棧是長方體,并且具有兩根電線來控制元件。帶有預應力機構的封裝執行器是實現穩健系統集成的理想解決方案。
Piezotechnics 壓電堆棧可以在極端環境中運行。適用于在低溫、真空和外來環境(如高g場或振動)中操作。
有多種堆疊尺寸和選項可供選擇。共燒多層壓電堆的最大工作電壓為150V。該堆的特點是高功率密度,為您的應用提供強大、精確和快速的驅動。Piezotechnics 壓電堆棧允許在-30 V至150 V的電壓下進行半雙極操作。
Piezotechnics 壓電堆棧主要可選:低溫,真空,薄涂層,厚涂層,藍寶石半球,應變儀。
美國Piezotechnics 壓電堆棧標準型號如下,也可定制其他尺寸。
型號 | 尺寸[mm2] | 長度[mm] | 單級位移/雙極位移 [um] | 電容[nF] | ?絕緣[MOhm] | ?諧振[kHz] | 剛度 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 |
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 |