Ultrasonic piezoelectric transducer and ultrasonic actuator
US5523643A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ultrasonic piezoelectric transducer and an ultrasonic actuator for performing enhanced elliptical vibration comprise a first laminated piezoelectric element having a first fixed end, a resonator mounted to the opposite end of the first laminated piezoelectric element, a second laminated piezoelectric element having one end thereof fixedly mounted to the resonator in a direction other than a vibrating direction of the first laminated piezoelectric element, and a load mass fixedly mounted to the opposite end of the second laminated piezoelectric element. This structure permits the enhanced elliptical vibration of the transducer to have a large, controllable amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.