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Displacement-maintaining piezoelectric actuator without friction

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ORCID

ORCID
Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Smart Materials and Structures, , n. 3, v. 31
Seite(n): 035026
DOI: 10.1088/1361-665x/ac4e4f
Abstrakt:

We propose a displacement-maintaining piezoelectric actuator based on a hysteresis loop and a displacement-voltage loop. Remnant polarization and remnant strain of piezoelectric material depend on maximum applied electric field. By adjusting the peak and valley of the applied voltage, the displacement-voltage loop of piezoelectric material is changed, and our proposed actuator can have different displacement states at zero voltage. In order to verify that this actuator is practical, a commercially available piezoelectric stack using modified lead zirconate-lead titanate is used as a drive unit. Experiments show that the actuator can maintain displacement without friction. Moreover, the relationships between maintainable displacement and the peak and valley of applied voltage are obtained. The actuator can continuously adjust the maintainable displacement with nanometer-level resolution and micron-level stroke. This work provides a method to maintain continuously adjusting displacement at zero voltage without friction, which can be expected to expand the range of application of piezoelectric materials in precision actuators.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1088/1361-665x/ac4e4f.
  • Über diese
    Datenseite
  • Reference-ID
    10656269
  • Veröffentlicht am:
    17.02.2022
  • Geändert am:
    17.02.2022
 
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