Piezoelectric effect

The piezoelectric effect converts kinetic or mechanical energy, due to crystal deformation, into electrical energy. This is how ultrasound transducers receive the sound waves.

The same effect can be used in reverse – inverse piezoelectric effect – whereby the application of an electric field to a crystal causes realignment of the internal dipole structure. This realignment results in crystal lengthening or contraction, converting electrical energy into kinetic or mechanical energy. This is how ultrasound transducers produce sound waves.

History and etymology

Piezo suffix of piezoelectric was formed from the Ancient Greek word πιεζω (piezo) meaning "to press" 2.

Ultrasound - general index
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Article information

rID: 8661
Section: Physics
Synonyms or Alternate Spellings:

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Cases and figures

  • Figure 1: PZT crystal
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