High Accuracy Piezo Actuator PZT for optical fiber stretch

Piezo Actuator PZT,optical fiber stretch,High Accuracy

Type:PSt150/14*14/20

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 

Max./Stroke[μm]±15%:28/20

El. capacitance [μF]±20%:14.5

Stiffness [N/μm]±20%:500

Resonant frequency [kHz]±20%:47

Blocking Force [N]:15000

Mass [g]±5%:31.3

Applications

 Fiber stretching

 Active vibration control

 Piezo dispensing valve

 Precision positioning

 Piezo deformable mirror

 Piezo gripper

 Laser cavity tuning