Method and means for damping modes of piezoelectric vibrators
US5078834A · kind A · utility
8Cited by
9References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1989 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | May 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and arrangement for providing damping of undesired modes of piezoelectric vibrators is disclosed that eliminates the tedious and often inaccurate methods of known mass-loading techniques. Instead, the arrangement relies on physically altering a controlled amount of the piezoelectric material located at a predetermined point to effect the selective damping needed to minimize the undesired responses and to minimally interfere with the desired mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.