Active tuned magnetic flux rate feedback sensing arrangement
US5394290A · kind A · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Jul 6, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement using sensing coils for obtaining flux rate of change information in a magnetic circuit. The arrangement can be used for vibration attenuation in a magnetic forcer system. Active (electric powered) circuitry is used to implement closed loop control of flux rate. The control loop is "tuned" for attenuating a narrow range of vibration frequencies. The arrangement can be applied to magnetic forcer/suspension systems in which vibrations due to magnetic, mechanical/magnetic runouts, system mechanical resonances, or external vibration sources are present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.