Piezoelectric device having at least one piezoelectric element
AssigneePiezocryst Advanced Sensorics GmbH
InventorsAlexander Schricker, Christian Neubauer, Andreas Mayer
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Abstract
Aspects of the present disclosure relate to a piezoelectric device having at least one piezoelectric element, which has a support plane oriented to a force introduction element, wherein in the event of a thermal loading of the piezoelectric device in the support plane, expansion differences between the piezoelectric element and the force introduction element occur. To compensate for shear loadings, at least one transition element is arranged between the piezoelectric element and the force introduction element, the E-module of which is smaller than the E-module of the piezoelectric element in the support plane.
Claims19
A piezoelectric device comprising:
- at least one piezoelectric element,
- a force introduction element,
- a support plane aligned with the force introduction element, wherein expansion differences occur between the at least one piezoelectric element and the force introduction element in the support plane when the at least one piezoelectric device is thermally loaded, and
- at least one transition element is arranged between the at least one piezoelectric element and the force introduction element,
- wherein the at least one transition element has a modulus of elasticity whose modulus of elasticity components c22 and c33 in the support plane are smaller in each case than respective modulus of elasticity components of the piezoelectric element.
Dependencies are inferred from the claim text.