The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 04, 2015

Filed:

Aug. 31, 2011
Applicants:

Nariyuki Kataoka, Kariya, JP;

Tetsuya Koyama, Kariya, JP;

Inventors:

Nariyuki Kataoka, Kariya, JP;

Tetsuya Koyama, Kariya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 1/22 (2006.01); G01M 1/16 (2006.01); G01M 1/30 (2006.01);
U.S. Cl.
CPC ...
G01M 1/22 (2013.01); G01M 1/16 (2013.01); G01M 1/30 (2013.01);
Abstract

An imbalance correction method for correcting the imbalance of a rotor measures the vibration state of the rotor before temporary correction and the vibration state of the rotor after the temporary correction in a plurality of rotational speeds in order to make vibration values below the standard. An aggregation range of the tips of correction vectors for obtaining a vibration value which satisfies a vibration standard is calculated from vibration vectors in the rotational speeds. A real correction vector is selected from correction vectors having the tips in a region in which the aggregation ranges calculated for each of the rotational speeds overlap one another among a plurality of the correction vectors. A real correction amount and a real correction phase are set based on the real correction vector. The imbalance of the rotor is corrected based on the real correction amount and the real correction phase.


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