P-876 DuraAct™ patch transducers offer the functionality of piezoceramic materials as sensors and actuators as well as for electrical charge generation and storage. Used as bender actuators, they allow high deflections of up to 0.8 mm with high force and high precision.
Other possible operation modes of DuraAct™ transducers are as high-dynamics sensors (e.g. for structural healthmonitoring) or for energy harvesting.
- Actuator, Sensor or Energy Source
- Highly Formable Ceramics
- Can be Applied to Curved Surfaces
- Customized Solutions on Request
- Cost-Effective
Integration into Adaptive Systems
With their compact design, DuraAct™ transducers can be applied to structure areas where deformations are to be generated or detected. For this purpose the transducers can be affixed to the surfaces of structures or integrated as structural elements themselves. Whole areas can be monitored effectively by applying an array of several modules to a surface.
DuraAct™ patch transducers are ideally suited for active and adaptive systems. Embedded in a servo-control loop, they can reduce vibrations and control structures in the nanometer range.
Robust and Cost-Effective Design for Industrial Applications
The laminated design with piezoceramic plate and polymers provide a mechanically preloaded and electrically insulated device for easy handli ng.P-876 patch transducers feature a rugged design with the mechanical stability of a structural material.
Energy Harvesting: Self-Sustaining Systems in a Small Package
One possible application of DuraAct™ patch transducers is in the field of energy harvesting. Transformation of mechanical vibrations of up to some kilohertz into the corresponding potential difference can yield electrical power in the milliwatt range. This power can supply miniature electronic devices like diodes, sensors or even radio transmitters for remote data control.
DuraAct™ transducers can be offered in highly customized versions:
- Flexible choice of dimensions
- Flexible choice of thickness and bending properties
- Flexible choice of piezoceramic materials and operating temperature
- Various electrical connection designs
- Combining sensor and actuator functions (multiple ceramic layers)
Application Examples
- High-dynamics actuators
- Adaptive systems
- Vibration and noise cancellation
- Deformation control and stabilization
- Damage monitoring
- Energy harvesting
Technical Data
| P-876.A11 | P-876.A12 | P-876.A15 | Tolerances | |
| Operating voltage | -50 to +200 V | -100 to +400 V | -250 to +1000 V | |
| Motion and positioning | ||||
| Lateral contraction, open-loop | 400 µm/m | 650 µm/m | 800 µm/m | min. |
| 1.6 µm/(H/m/V) | 1.3 µm/(H/m/V) | 0.64 µm/(H/m/V) | ||
| Mechanical properties | ||||
| Holding force | 90 N | 265 N | 775 N | |
| Length | 61 mm | 61 mm | 61 mm | ±0.5 mm |
| Width | 35 mm | 35 mm | 35 mm | ±0.5 mm |
| Thickness | 0.4 mm | 0.5 mm | 0.8 mm | ±0.5 mm |
| Bending radius | 12 mm | 20 mm | 70 mm | max. |
| Drive properties | ||||
| Piezo ceramic type | PIC 252 | PIC 255 | PIC 255 | |
| Layer thickness: | 100 µm | 200 µm | 500 µm | |
| Electrical capacitance | 150 nF | 90 nF | 45 nF | ±20% |
| Miscellaneous | ||||
| Operating temperature range | -20 to +150 (180) °C | -20 to +150 (180) °C | -20 to +150 (180) °C | |
| Mass | 2.1 g | 3.5 g | 7.2 g | ±5% |
| Voltage connection | Solder pads | Solder pads | Solder pads | |
| Recommended controller/driver | E-413.D2 | E-413.D2 | E-508 |