Electricity: motive power systems – Positional servo systems – Unwanted harmonic or voltage component elimination...
Reexamination Certificate
2007-01-30
2010-02-09
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Positional servo systems
Unwanted harmonic or voltage component elimination...
C318S611000, C318S616000, C318S606000
Reexamination Certificate
active
07659683
ABSTRACT:
Systems and methods that determine resonant frequencies of a motor system via employing an output of a velocity regulator. The velocity regulator enables the motor drive to command the rotation of the motor at predetermined rotations, by setting rotational speeds of the motor. The output of the velocity regulator can then be stored as a function of time, and a Fast Fourier Transform performed on such time data to obtain a frequency data and a signal power spectrum.
REFERENCES:
patent: 4219767 (1980-08-01), Wimmer
patent: 6144181 (2000-11-01), Rehm et al.
patent: 6211640 (2001-04-01), Fujisaki et al.
patent: 6417982 (2002-07-01), Ottesen et al.
patent: 6597146 (2003-07-01), Rehm et al.
patent: 6822415 (2004-11-01), Komiya et al.
patent: 6850021 (2005-02-01), Golownia et al.
patent: 7170251 (2007-01-01), Huang
patent: 7187142 (2007-03-01), Rehm
patent: 7291999 (2007-11-01), Huang
patent: 7417386 (2008-08-01), Piefer et al.
Lee Sang Hoon
Li Zhengrong
Qian Wei
Schmidt Peter B.
Dinh Thai
Ro Bentsu
Rockwell Automation Technologies Inc.
Speroff R. Scott
Turocy & Watson LLP
LandOfFree
Resonant frequency identification does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resonant frequency identification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant frequency identification will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4230619