DuraAct Piezoelectric Patch Transducer
F L E X I B L E , E F F I C I E N T, D U R A B L E

WWWWWW. P. PI CI CEERRAAMMI C
I C. C. DOEM

Versatile in Application
Efficient in Use

Structural Health Monitoring
When monitoring components, piezo transducers areused to measure deformations, e.g. the monitoring ofweld seams on components that are difficult to access.
Entire areas can be actively monitored by some of thetransducers acting as wave-generating actuators, whileother modules acting as sensors pick up these waves.
Disturbances within a component, e.g. microcracks, aredetected by comparison with reference signals from theundamaged system.

Energy-Autarkic Systems
DuraAct Patch Transducers use the direct piezoelectriceffect to generate electricity – they convert the energy fromvibrations and air currents, force changes or mechanicaldeformations into electricity and thus enable a self-sufficient
supply of small electrical consumers such as sensors or radiotransmitters.

Active Vibration and Sound Insulation
DuraAct Patch Transducers work both as a sensor andas an actuator and can thus dampen undesired
vibrations. The phase-shifted sensor signal can also beused as voltage supply for the same piezo element.

Contouring
Due to their function as sensors, DuraAct Patch Transducers
detect deformations that are counteracted by the controlof the actuator. This enables high-precision contour deformation in the sub-micrometer range.

W W W. P I C E R A M I C . C O MDuraAct Patch TransducernMinimum bending radii up to 12 mmn

Compact designn

High bandwidthn

Individual solutions

DuraAct
Patch Transducer

Motion &positioning

Mechanicalproperties

Drive
propertiesDuraAct PowerPatch Transducer

P-876.A11P-876.A12P-876.A15P-876.SP1P-878.A1

Operating voltage
range [V]-50 to 200-100 to 400-250 to 1.000-100 to 400-20 to 120

Min. lateral/axial
deformation [µm/m]

400

650

800

650

250/1.200

Rel. lateral/axial
deformation [µm/V]

1,6

1,30,64

1,3

1,2/10Blocking force [N]

90265

775

280

44Min. bending
radius [mm]122070-24Electrical
capacitance [nF]

150 ± 20 %90 ± 20 %45 ± 20 %8 ± 20 %100 ± 20 %Piezoceramicmaterial

PIC255

PIC255

PIC255

PIC255PIC252

Active piezoceramic
thickness [µm]100200500

200300

Contacting

Solder points

Solder points

Solder points

Solder points

Solder points

Dimensions
L x W x D (mm)61 × 35 × 0,461 × 35 × 0,561 × 35 × 0,816 × 13 × 0,5

27 × 9,4 × 0,6

E-413, E-821,
E-835

E-503, E-504,
E-505, E-506,
E-610, E-617,
E-618, E-663,
E-821, E-831,
E-836

Miscellaneous
Recommended
electronics

E-413, E-821,
E-835

E-413, E-821,
E-835

E-413, E-821,
E-835

Combined with suitable electronics, DuraAct Patch Transducers are the ideal solution for highly dynamic
precise actuators with nanometer accuracy – discover our controllers at www.piceramic.com

PIEZO TECHNOLOGYDuraAct Shear
Patch Transducer

Customizeddevelopment
on request

Your Requirements
Your Customized Modification

DuraAct Patch Transducers are manufactured in a wide variety of shapes. Whether special geometries or electronics –we are happy to adapt our product to your application.

Dimensions and Geometries

ArraysnBroad selection

nFlexibility depending on the height of the piezoceramics

Incorporation of several DuraAct PatchTransducers in one laminate possiblen	Contacting together or individually

Alternative piezoceramic materials on requestn	n	

Piezoceramic construction in several layers
for use of the DuraAct Patch Transducer as
actuator and sensorn	Special Electronics for Sensor Applications

Electrical Connections
Standard products with pre-tinned solder padsn	nCustomer-specific contacting variants with wires
or strands possible

Electronic modules can be mounted close tothe converter, e.g. for processing sensor data orcontrolling the DuraAct Patch TransducernnContacting via solder pins or mini plugs

Production with Know-how from the Space Industry
The piezoelectric plates of the DuraAct Patch Transducers are embedded in fiber-reinforced
plastic (GRP) using a patented process and bonded to form a composite. Our partner
INVENT takes over the joining process: A vacuum injection process produces completely
bubble-free laminates of the highest quality. The curing temperature profile of the autoclave used for this purpose is selected in such a way that a defined internal preload of thepiezoceramic plates is created. The polymer coating of the GRP serves simultaneously aselectrical insulation and mechanical pretension.

INVENT GmbH Braunschweig is a recognized lightweight construction specialist for innovative fiber composite technologies in
the aerospace industry and develops and produces high-precision structural components for PI Ceramic, among others.

W W W. P I C E R A M I C . C O MDuraAct Patch Transducers
Piezo Ceramics as Flexible Composites

DuraAct Patch Transducers are composites of one or more thin piezoceramic plates in a patented laminate structure: Piezo components equipped with electrodes are electrically insulated and mechanically pre-stressed by a polymer outer surface. Depending on
the application, strands can be soldered, glued or clamped at two contact points. If the patch transducer is to have a separate sensor
or actuator functionality, several layers are contacted separately.

nApplication as sensor and actuatornExtremly durablenFlexible deformationn

Solid state actuators without friction and wear

Electrical insulation /mechanical preload

Electricalcontact

ElectrodePiezoceramiclayer

P-878.xx
P-876.xx

PE

DuraAct Patch TransducersnLongitudinal and transversal
contraction or expansion of thepatch transducer

n

PEPE

DuraAct Power Patch TransducersnHigh axial deflection upto max. 1,200 µm/mn	Moderate deflection up tomax. 800 µm/mnMinimum bending radii up to 12 mmnVoltage range up to max. 1,000 V

Longitudinal deflection intransverse contraction

Greater efficiency throughmultilayer designn	n

DuraAct Shear Patch Transducers
nGeneration of surface
acoustic wavesn	

Voltage rangeup to max. 500 Vn	

Voltage range up to max. 120 V

Learn more about DuraAct technology at www.piceramic.comPIEZO TECHNOLOGY

Shear movement of
the patch transducer

Headquarters

ACS Motion Control

PI Subsidiaries

GERMANYISRAELUSA (East) & CANADA

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W W W. P I C E R A M I C . C O M

BRO07E R2 DuraAct 03/2021. 0.0. Subject to Change © Physik Instrumente (PI) GmbH & Co. KG 2021

PIEZO TECHNOLOGY