Piezo Stack Actuator With Preload 150V Driving Voltage for Precision Grind
Low-voltage piezo actuator is preloaded low-voltage piezo stack inside, and the outside is protected by a cylindrical
stainless steel shell. The preloaded piezo actuator can withstand a certain pulling force, and is suitable for highload and high-dynamic applications.
Characteristics
• Nanoscale resolution
• Optional closed-loop sensor
• Travel 190μm
• Blocking force to 25000N
Closed Loop and Open Loop
Preloaded piezo actuators are available in open loop (no position feedback sensor) and closed loop (integrated position feedback sensor) versions. In its open-loop mode, the resolution is infinitely high, limited only by the noise of the controller, and it also features the hysteresis and creep. In its closed-loop model, the hysteresis, creep and non-linearity are ruled out to make it linear.
Multiple Ends
• Plane
• Spherical
• Internal thread
• External thread
Technical Data
Eg:PSt150/7/20 VS12
Stroke [μm]±10%* :9
Stiffness [N/μm]±20%:60
Push/pull force [N]:1200/200
El. capacitance [μF]±20%:1.8
Resonant frequency [kHz]±20%:30
Length L [mm]±0.3:28
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