Active broadband magnetic flux rate feedback sensing arrangement

Details Active broadband magnetic flux rate feedback sensing arrangement Active broadband magnetic flux rate feedback sensing arrangement

1993-07-06

1994-07-12

Hoff, Marc S.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

32420717, 32420712, 324260, G01R 3302

Patent

active

053294165

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 "broadband" since a broad range of vibration frequencies are attenuated. 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. The arrangement is particularly applicable for systems with a large number of varying vibration frequencies.

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patent: 5107210 (1992-04-01), Shirao et al.
patent: 5130589 (1992-07-01), Kanemitsu

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