ELPA Company

124460, Russia, Moscow, Zelenograd, Panfilovsky prospect, 10


Piezoceramic stack actuators are made by stacking monolithic multilayer elements having alternating ceramic and electrode layers. The axis of the stack is the axis of a linear displacement. When voltage is applied, the thickness of the layer increases. As a result, the total length of the stack increases as well. The stack actuator is a rigid structure having a high capacitance and consisting of a number of piezo layers assembled into a monolithic unit by the sintering method. A small displacement of each layer is summed into a total displacement from several microns to dozen microns with the developed force being from hundreds to thousands Newton.

There are two types of piezoceramic stack actuators design:

  • piezoceramic plates are in the ring-shaped
  • bird piezoceramic plates are in the disc-shaped


  • precise masks alignment in photo and X-ray lithography;
  • precise tool supply in medical equipment;
  • stand displacement for optico-mechanical devices (gas analyzers and dose meters control);
  • beam control in optical fiber devices
  • adaptive optical systems, adaptive telescopes
  • P-1÷P-5 are intended for parallel displacement of optical elements in quantum generators
  • PS-4, PS-5 are used in ring type quantum generators for automatic control of constant optical parameters
  • PS-11÷PS-14 are designed for linear displacement piezoceramic drivers
Characteristic, unitPS-4PS-11PS-12PS-13PS-14P-1P-3P-4P-5
Sensitivity µ/V●10-3, min4.
Insulation resistance (MΩ)
Static capacitance (pF×103), max80000650005200022000170000.0680.0370.0250.037
Maximum rated voltage (V)-300÷+ 500+100+600+600+600+600+600+600+600
Mass (g)
Operating temperature range °C-60÷+85-60÷+65-60÷+65-60÷+65-60÷+65-60÷+85-60÷+85-60÷+85-60÷+85
Dimensions (mm)Ø30×Ø18×5,4Ø20×5,4Ø23×Ø13×5,4Ø20×1,8Ø23×Ø13×1,8Ø30×Ø18×3Ø15×4,2Ø23×Ø13×1,8Ø23×1,8


  • PS-11, PS-12, P-1, P-3 sensitivity is defined in the thickness vibrations mode
  • PS-13, PS-14, P-4, P-5 sensitivity is defined in the radial vibrations mode
  • Sensitivity is measured at U = 400 V
  • PS-4 sensitivity is ± 1,2 m (min) at U = ± 300 V

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