发明名称 |
Control apparatus for a rotor supported by an electromagnetic bearing |
摘要 |
The present invention reduces the resonance amplitude of the rotational frequency-synchronous unbalance vibration of a rotor supported by an electromagnetic bearing. To this end, the invention disposes an X-direction control servo circuit and a Y-direction control servo circuit each of which detects the deviation of the rotor from a desired position in the radial direction thereof and controls the rotor so as to be held at the desired position on the basis of the detection signal, and a tracking filter which is synchronous with the rotational frequency. Outputs from the filter are crossed to supply the Y-direction control servo circuit with the X-directional output and to supply the X-direction control servo circuit with the Y-directional output signal.
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申请公布号 |
US4697128(A) |
申请公布日期 |
1987.09.29 |
申请号 |
US19860861002 |
申请日期 |
1986.05.08 |
申请人 |
HITACHI, LTD. |
发明人 |
MATSUSHITA, OSAMI;TAKAGI, MICHIYUKI;YONEYAMA, MITSUHO;SUGAYA, TOYOMI |
分类号 |
F16C32/04;F16C39/06;(IPC1-7):G05B1/02 |
主分类号 |
F16C32/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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