Annular Piezoelectric Ceramic Chip

Annular Piezoelectric Ceramic Chip

Redefining rotational actuation through annular stacking innovation and low-voltage precision. As specialized manufacturers, we provide reliable, rapid-response solutions via precision engineering and customization, driving technological advancements in optics, industrial, and medical fields.

Structural Design

● Annular Stack Architecture: Ceramic/electrode layers stacked radially with customized inner/outer diameters. Standard 2mm thickness achieves 0.1% thickness-to-displacement ratio.

● Central Through-Hole: Smooth-bore central aperture (±10μm tolerance) for mechanical preloading, optical pathways, or microfluidic integration.

● Full-Edge Insulation: Ceramic encapsulation on outer/inner edges for moisture/leakage resistance, with polarity "dot" for directional clarity.

● Precision Sizing: Flatness <±5μm and surface roughness Ra<0.2μm ensure optimal contact and energy transfer efficiency.

Material Properties

● High-Activity Piezoelectric Ceramic: Modified PZT-based material with d33≥500 pC/N, thermal drift <0.03%/°C, and superior electromechanical coupling.

● Low-Loss Electrodes: Ag-Pd alloy internal electrodes and Ag-printed external electrodes (resistivity <0.3Ω·cm) support 0V~150V driving and kHz-level operation.

● Fatigue Resistance: Gradient sintering enhances centrifugal resistance, achieving >5×10⁷ cycles with <3% performance degradation.

Core Advantages

● Low-Voltage Precision: Operates at 0V~75V (extendable to 0V~100V/0V~150V) with nanometer-level resolution and <0.1% repeatability.

● Rotation-Optimized Design: Annular structure naturally aligns with rotational systems, delivering 2X higher torque density than conventional planar designs.

● Rapid Dynamics: <100μs response time enables kHz-level vibration control and real-time adjustments.

● Environmental Robustness: Full-ceramic encapsulation withstands humidity/aging, operates at -25°C~130°C, and resists EMI.

Typical Applications

● Optical Alignment: LiDAR rotary mirror actuation, adaptive optics annular deformable mirror control.

● Ultrasonic Systems: Annular transducer arrays, medical endoscopic rotary scanning probes.

● Industrial Automation: CNC rotary table micro-compensation, high-frequency rotary valve control.

● MEMS: Rotary drive modules, micro-motor torque feedback units.

● Energy Systems: Wind turbine pitch adjustment, annular vibration energy harvesters.

Quality Commitment

● Full-Process QC: Laser-monitored inner/outer diameter accuracy and flatness from tape casting to stacking, 100% polarization and dynamic performance testing.

● Customization Expertise: Tailored diameters, thicknesses, voltage ranges, and force/displacement curves with prototypes in 5 business days.

● Technical Support: Annular dynamic simulation, preload calculation, driver circuit co-design, and 24/7 consultation.