The VMANX PVDF Piezoelectric Film Sensor utilizes high-purityPolyvinylidene Fluoride (PVDF) film.
A stable beta-phase crystalline structure is formed throughmulti-axial stretching and high-voltage polarization processes.
Combined with precision screen-printed electrode technologyand multi-layer composite encapsulation.
Delivers high sensitivity and broad frequency responsefor electromechanical signal conversion.Suitable for dynamic force detection, vibration monitoring,acoustic sensing, and other applications.
| Parameter | VMANX VV-PVDF6866 | Unit | Test Condition |
| Piezoelectric Strain Constant (ds) | 20-25 | pC/N | 25℃, 1Hz |
| Piezoelectric VoltageConstant (g3s) | ≥200 | mV-m/N | 25℃, 100Hz |
| Frequency Response Range | 0.1 Hz-100MHz | - | ±3dB |
| Dielectric Constant (ε/εo) | 11-13 | - | 1kHz |
| Capacitance Density | 350-400 | pF/c㎡2 | 44um thick,1kHz |
| Acoustic Impedance | 2.5-3.0 | MRayl | Water Load |
| Operating Temperature | -20℃~ +85℃ | - | Long-term stability |
| Pyroelectric Coefficient | ≤35 | μC/(m2`K) | ΔT=1K |
| Breakdown Voltage | ≥1800 | V (DC) | 25℃, 44μm film thickness |
| Linearity Error | ±1% | F.S. | Dynamic Range >120dB |
| Core Layer: 28/44/110μm PVDF film (customizable) |
| High-voltage polarization treatment, Beta-phasecontent ≥80% |
| Electrode Layer |
| Dual-side silver paste printed electrodes (5-10μm thick) |
| Edge non-metalized treatment (Prevents short circuit) |
| Encapsulation Layer |
| Top layer:12um polyester protective film |
| Bottom layer : 50um flexible adhesive layer |
| Optional EMI shielding layer (Copper mesh embedding,Magnetron sputtering) |
Frequency Response Characteristics: -3dB cutoff frequency≤0.5Hz10MO load resistor
Temperature Stability: Variation rate of d3s < +5% @ -40°C~85°C
| Field | Application Solution | Advantage |
| Industrial Monitoring | Bearing wear detection, yarn break sensing | Wide frequency response (0.1-10kHz) |
| Intelligent Transportation | Piezoelectric cable vehicle classificationsystems | Linearity ±0.5%, IP68 protection |
| Medical Devices | Ultrasonic imaging probes; Heart rate,respration monitoring | Flexible, patchable, lightweight, high sensitivity |
| Consumer Electronics | Instrument pickups,wearable haptic feedback | Thickness <0.2mm, bend radius 5mm |
Recommended Circuit Configuration
Recommended input impedance: >100MO (charge amplifier)
Cable type : Double-shielded coaxial cable (capacitance <50pF/m)
Anti-Interference Design
Differential output used to suppress pyroelectric noise
Offset electrode layout prevents high-voltage breakdown
Reliability Standards
Mechanical fatigue life : >10° cycles @10% strain
- Damp Heat Test : 85°C/85%RH 1000 hours, parameter drift <3%
Certifications : RoHS, REACH, ISO 13485 Medical Grade
Supports the following non-standard designs:
Custom electrode patterns (laser etching / mask deposition)
Integrated output signal conditioning circuits
Film-silicon heterogenous integration (MEMS process)
Dongguan Zhongman Industrial Co., Ltd.
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