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 cylindricalstainless 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
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:PSt150/7/20VS12
Stroke [μm]±10%* :19
Stiffness [N/μm]±20%:60
Push/pull force [N]:1200/200
- [μF]±20%:1.8
Resonant frequency [kHz]±20%:30
Length L [mm]±0.3:28
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