| 摘要 |
A piezoelectric actuator for actuating a mechanical component includes a piezoelectric element, for subjecting an actuating element to a tensile force or compressive force, and a compensating element, with the piezoelectric element and the compensating element having essentially the same coefficients of temperature expansion. The compensating element is mechanically coupled to the piezoelectric element in such a way that the temperature-caused expansions of the piezoelectric element and of the compensating element cancel one another out in the effective direction in such a way that the actuating element remains in its position.
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