Electrically operated tuning fork
US7010978B1 · kind B1 · utility
3Cited by
8References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2000 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Jun 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrically operated tuning fork apparatus includes a tuning fork having a base and a pair of tines. The tines have tips remote from the base, and are formed of or include material in which a magnetic field can be induced. The tuning fork apparatus also includes an electrical coil configured to receive at least a portion of both tines of the tuning fork. At least one of the tines can be vibrated relative to the other of the tines by passing a varying current through the coil to induce mutually repulsive magnetic fields in the tines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.