Frequency regulation of a timepiece resonator via action on the active length of a balance spring
US9354607B2 · kind B2 · utility
2Cited by
4References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 12, 2015 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B18/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for maintaining and regulating the frequency of a timepiece resonator mechanism around its natural frequency (ω0) Includes a regulator device acting on the resonator with a periodic motion which requires a periodic modulation of at least the resonant frequency of said resonator, by requiring at least a modulation of the active length of a spring in the resonator mechanism, with a regulation frequency (ωR) that is between 0.9 times and 1.1 times the value of an integer multiple of the natural frequency (ω0). The integer is greater than or equal to 2 and less than or equal to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.