Piezoelectric actuator for use in micro engineering applications
US8456068B2 · kind B2 · utility
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9References
10Claims
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Key dates
| Filing date | Dec 22, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A piezoelectric actuator including a piezoelectric element and an elongate transducer mounted on the piezoelectric element. The transducer is formed from an elongate cylindrical member, and at least one helical slot is provided around the outer surface of the cylindrical member to enable coupling of resonance modes of the transducer when actuated by the piezoelectric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.