Multi-Layer Stack Piezoelectric Shear Element

Multi-Layer Stack Piezoelectric Shear Element

Redefining lateral precision actuation and dynamic control through shear-mode innovation and multi-layer stacking technology. As specialized piezoelectric manufacturers, we address shear application challenges via material breakthroughs and refined processes, delivering high-reliability, rapid-response customized solutions to elevate high-end equipment performance.

Structural Design

● Shear-Mode Stack Architecture: Multi-layer ceramics stacked along shear direction with orthogonal polarization/field orientation, directly converting electrical excitation into transverse shear deformation for amplified displacement and force.

● Interdigitated Electrodes: Alternating electrodes on ceramic layers optimize electric field distribution, ensuring uniform shear force output and eliminating stress-induced performance degradation.

● Compact Encapsulation: High-strength insulated housing with preload adjustment mechanism enhances shear impact resistance, supporting high-frequency/high-load operations.

Material Properties

● High-Shear Piezoelectric Material: Modified PZT-based composition tailored for shear mode, achieving exceptional shear piezoelectric constant (d15≥800 pC/N) with 30%+ energy conversion efficiency.

● Fatigue Resistance: Grain boundary engineering minimizes internal friction, enabling >10^7 high-frequency shear cycles with <5% performance degradation.

● Broad Thermal Stability: Operational range of -25°C~130°C with thermal drift coefficient <0.05%/°C, ensuring stable output in harsh environments.

Core Advantages

● High Shear Displacement: Delivers tens of microns of shear travel with 2-3X higher force density than conventional ceramics, meeting heavy-load micro-adjustment demands.

● Ultra-Fast Dynamics: Microsecond-level electromechanical response supports kHz-range driving for real-time vibration damping and dynamic compensation.

● Anti-Interference Capability: Decoupled shear/axial force output minimizes external vibration impact on system accuracy.

● Extended Lifespan: Adhesive-free full-sintering process prevents layer separation, achieving >1×10^8 cycles under continuous high-frequency use.

Typical Applications

● Precision Instruments: SEM stage micro-positioning, AFM probe actuation.

● Acoustic Systems: Ultrasonic transducer arrays, active noise-cancelling speaker vibration control.

● Industrial Automation: Tactile feedback for robotic assembly arms, anti-shake platforms in semiconductor packaging.

● Robotics: Biomimetic joint actuation, force-sensitive end-effectors.

● Automotive Electronics: Vibration compensation for automotive radars, active engine damping systems.

Quality Assurance

● Full-Process Control: Strict polarization uniformity and electrode alignment checks from material formulation to assembly, 100% shear force testing and fatigue validation.

● Customization Expertise: Tailored shear displacement, force, voltage, and frequency specifications with driver circuit co-design services.

● Application Engineering: Scenario simulation, integration guidance, and fault diagnosis to maximize performance and accelerate deployment.