piezo actuator,Multilayer piezo stack,piezo creamic

Type:PSt150/1.2*1.2/1.7

Material Properties

Material:PZT(PZT5H)

Rel. dielectric constant ε_ref: 5400

Loss factor: 200*10^-4 

Coupling factor: K_P=0.62, K₃₁=0.34, K₃₃=0.68

Piezo coefficient:d₃₁=-290pm/V, d₃₃=+635pm/V

pliance: S₃₃^E =18.1*10-12m²/N, S₁₁^E =14.8*10-12m²/N

Frequency constant: Radial=2040m/sec, Thickness=1800m/sec,

Transverse=1410m/sec,

Longitudinal=1370m/sec

Quality factor(resonance):70

Density: 8g/cm³

Curie temperature: 150°C

Specific heat: 380Ws/°K kg

Thermal conductivity: ca.1.5 Ws/m·K(axial direction)

Above-mentioned parameters can vary significantly with the

operating electrical field strength.

Temperature

Operating temperature: -50~+100°C(according to resin). If >100°C, PZT performance will be reduced reversibly Above Curie temperature, piezo actuators will be permanently depolarized.

Technical data 

Eg:PSt150/1.2*1.2/1.7

Max./Stroke[μm]±15%:1/0.8

El. capacitance [μF]±20%:0.045

Stiffness [N/μm]±20%:50

Resonant frequency [kHz]±20%:100

Blocking Force [N]:80

Mass [g]±5%:0.09

Applications

 Fiber stretching

 Active vibration control

 Piezo dispensing valve

 Precision positioning

 Piezo deformable mirror

 Piezo gripper

 Laser cavity tuning