Piezoelectric Spheres & Hemispheres

Piezoceramic Hollow Spheres, Hemispheres, Focus Bowls

Fields of Application

Medical HIFU
Therapeutic Ultrasound
Sonar Transducers
Hydrophones

PI Ceramic develops and produces customer-specific semi- and hollow spheres as well as focus bowls in a variety of geometries and electrode designs, e.g. with and without contacting. From miniaturized spheres for medical technology purposes to large components for hydroacoustic applications and the generation of high-intensity focused ultrasound (HIFU), piezo spheres offer high sensitivity and durability.

Typical Configurations

Customer-Specific Designs on Request

  • Geometry variations e.g. collar, flattening, phases, spheres with or without hole
  • Focus bowls with customer-specific radii
  • Various electrode designs, e.g. wrap-around electrodes or laser structuring
  • Frequency setting depending on thickness
  • Contacting by soldered strands or wires

 

OD         Outer Diameter [mm]

ID           Inner Diameter [mm]

TH          Thickness [mm]

H             Height [mm]

Specifications

 Hollow SpheresHemispheresFocus Bowls
MaterialPIC255,  PIC151,  PIC155,  PIC181
OD [mm]2 - 1002 - 1002 - 130
ID [mm]> 1> 1> 1
TH [mm]0,2 – 20 (depending on OD and ID)
H [mm]  Max. 50
ElectrodesPVD Thin Layer: CuNi, Au, Ag

Helpful Formulas

Frequency

Radial Oscillation

With Np

 PIC255PIC181
(Hemi-)Sphere16001900

 

Capacity

Sphere

With

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