Measuring and testing – Vibration – Vibrator
Reexamination Certificate
2008-10-02
2011-12-06
Raevis, Robert (Department: 2856)
Measuring and testing
Vibration
Vibrator
Reexamination Certificate
active
08069728
ABSTRACT:
Focusing on the criterion of “Energy save” or “Quiet noise” or other suitable operating parameter and considering the existing limitation of the operation of the electro-dynamic shaker system, apparatus for optimizing the operating condition of the vibration test system is proposed. The apparatus100measures the field current and drive current under the state that the desired vibration is fed to the specimen20, and calculates the necessary force the shaker1should supply. Field current is supposed to be varied, and the necessary drive current is calculated based on the necessary force data. Further, the blower rotation is supposed to be varied, and the total power consumption at the coils and the blower is calculated. Also the temperatures of the field coil4and of the drive coil10is estimated and checked whether within the limitation. Then the optimal operating condition for the focused criterion is selected.
REFERENCES:
patent: 2005/0120797 (2005-06-01), Butts
patent: 2001-013033 (2001-01-01), None
patent: 2002-206986 (2002-07-01), None
Goodfellow John
Maeda Norihiro
Prodanovic Milan
Ueno Kazuyoshi
Yamamoto Koshi
IMV Corporation
Raevis Robert
Sheridan Ross PC
Vick Jason H.
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