Method of dynamic balancing for magnetic levitation molecular pump
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United States of America Patent
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Oct 25, 2016
Grant Date -
Dec 11, 2014
app pub date -
Nov 22, 2012
filing date -
Dec 5, 2011
priority date (Note) -
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Abstract
A method of rotor dynamic balancing for magnetic levitation molecular pump, including the steps of: activating an force free control module after activating a motor of the magnetic levitation molecular pump; if the maximum radial vibration amplitude does not exceed ½ of a protective clearance during the acceleration of the rotor under the control of the force free control module, indicating that the force free control module is able to inhibit the co-frequency vibration of the rotor, so as to allow the rotational speed of said rotor to exceed its rigid critical rotational speed; performing rotor dynamic balancing operation at a high speed by an influence coefficient method. The method of rotor dynamic balancing can directly perform rotor dynamic balancing operation with respect to the rotor at a high-speed, which facilitates the rotor dynamic balancing operation so as to perform the rotor dynamic balancing operation more quickly and efficiently.
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