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.
Patent No.:
Date of Patent:
Jul. 11, 2006
Filed:
Dec. 15, 2003
Yoshitaka Takemori, Fukuoka, JP;
Takehiko Komiya, Fukuoka, JP;
Yoshitaka Takemori, Fukuoka, JP;
Takehiko Komiya, Fukuoka, JP;
Kabushiki Kaisha Yaskawa Denki, Fukuoka, JP;
Abstract
A resonance frequency detecting device of a multi-shaft electric motor control apparatus includes a plurality of electric motor control systems having electric motors () for driving machines () and controllers () for driving the electric motors (), detectors () for detecting the operating amounts of the machines (), signal processors () for analyzing the frequencies of the signals of the detectors () and outputting the frequencies as resonance frequencies, and output devices () for changing the signals of the signal processors () into graphs or numeric values, a command generator () for giving the electric motor control system a control command for transmitting a vibration to the machines () is provided to input the signals of the detectors () to the signal processor () and to output them as resonance frequencies.