Method and means for damping modes of piezoelectric vibrators
US5032755A · kind A · utility
6Cited by
16References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1988 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Mar 3, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/17
- 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.