Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Reexamination Certificate
2006-07-11
2006-07-11
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
C318S560000, C318S568160, C318S568170, C901S001000
Reexamination Certificate
active
07075263
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 (31, 32) for driving machines (41, 42) and controllers (21, 22) for driving the electric motors (31,32), detectors (51,52) for detecting the operating amounts of the machines (41,42), signal processors (61,62) for analyzing the frequencies of the signals of the detectors (51,52) and outputting the frequencies as resonance frequencies, and output devices (81,82) for changing the signals of the signal processors (61,62) into graphs or numeric values, a command generator (11) for giving the electric motor control system a control command for transmitting a vibration to the machines (41,42) is provided to input the signals of the detectors (51,52) to the signal processor (61) and to output them as resonance frequencies.
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Komiya Takehiko
Takemori Yoshitaka
Kabushiki Kaisha Yaskawa Denki
Leykin Rita
Sughrue & Mion, PLLC
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