Resonator made of nonpiezoelectric material with high quality coefficient
US4706046A · kind A · utility
3Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1986 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | May 23, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The resonator (10) includes a monocrystal (11) of a nonpiezoelectric matel with low attenuation of elastic bulk waves, such as corundum, means of supporting the monocrystal fastened to the monocrystal at points corresponding to the vibration nodes, thermal means (40) for directly causing a proper excitation of the monocrystal (11) and optical means (50) for detecting the periodic motion of the resonator without contact. Application in particular in oscillator construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.