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PI - Mechanical Precision Tubes for Application-specific Systems
Applying a voltage causes changes in the diameter, axial length, and wall thickness of piezoceramic tubes. By using segmented electrodes, precise lateral displacements can be achieved through controlled bending. These highly accurate and ultra-fast movements have a wide range of applications — from microdosing and inkjet printing, to the precise positioning of small objects, the manipulation of glass fibers, and the generation of ultrasound. Tailored, application-specific characteristics can be achieved through targeted refinement of the piezoelectric components.
- Lowest tolerances (0.05 mm)
- Large variety of outside diameters (<0.5 mm to 150 mm)
- Metallizations with thin and thick layer technology, wrap-around contact is possible
- Segmented electrodes for lateral displacements
- Industrial-grade assembly with wire, stranded wire or flex board contacting
- Protective coatings
- Glas fiber bonding
Whether a customized design or a standard product – PI Ceramic offers comprehensive support ranging from the selection of the optimal material to the development of solution-oriented applications. The dimensions of the piezo tubes can be flexibly defined within specified tolerance ranges. Feasibility can only be assessed once the desired specifications or application requirements are provided.
- Outer diameter OD [mm] 0.5 - 150
- Inner diameter ID [mm] 0.3 - 140
- Length L [mm] Max. 70
- Electrodes
- Outside: thick film (Ag), thin film (Ag, Au, CuNi, Cu, NiV, Cr), electroless nickel (from ID > 1 mm)
- Inside: thick film (Ag), electroless nickel (from ID > 1 mm)
- Electrode designs In addition to multi-segmented tubes, other designs are possible, such as full-surface, 4-segmented or wrap-around. See rigth column.
- Termination A variety of contacting methods are available, including soldering or bonding wires, strands, and flex boards. With the help of special adapters, even small four-segmented tubes can be easily contacted under a microscope — without compromising functionality. The datasheet is available >> here.
- Polarization direction Depending on the contacting and attachment of the electrodes, different bending occur in the axial, radial and lateral directions. For more information see >> Operating Modes.
- Material
- We offer various ferroelectric soft and hard PTZ materials.
- For material overview see >> here.
- Datasheets are available >> here.
- Added capabilitites
- In addition to refinement via assembly and interconnection techniques, tailored, ready-to-use piezo components can be developed, including glas capillary bonding,
- coating with parylene, non-magnetic variants for field strengths > 1 T.
- Applications Piezoceramic tubes are well-suited for a variety of sensor and actuator applications. Examples of potential uses can be found