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Piezoacoustic Transducer

Application ID: 1477

A piezoelectric transducer can be used either to transform an electric current to an acoustic pressure field or, the opposite, to produce an electric current from an acoustic field. These devices are generally useful for applications that require the generation of sound in air and liquids. Examples of such applications include phased array microphones, ultrasound equipment, inkjet droplet actuators, drug discovery, sonar transducers, bioimaging, and acousto-biotherapeutics.

This example shows how to couple piezoelectric vibrations in a transducer to an acoustics pressure wave in a fluid such as air or water. The physics that are coupled and solved are piezoelectric stress-strain, an electric field, and pressure acoustics in a fluid.

This model is included as an example in the following products:

Acoustics Module Structural Mechanics Module

The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.