发明名称 |
Characteristic measurement of an actuation drive coil and associated damping mechanism |
摘要 |
A system and method for analyzing a coil actuator of a type having a coil and a magnet. A current source selectively applies a first current to a coil of a coil actuator for setting a moveable part of the coil actuator to a first position. A recording system captures data corresponding to a back electromotive force voltage produced by oscillation of the coil actuator upon movement of the moveable part of the coil actuator to a second position. A processor applies a curve fit to the back electromotive force data for calculating a frequency characteristic and damping response of the coil actuator.
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申请公布号 |
US2005285589(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20040876197 |
申请日期 |
2004.06.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES |
发明人 |
EATON JAMES H.;FOLLETT DARRELL G.;HARPER DAVID H.;IMAINO WAYNE I.;KIRSCHENBAUM LEIF S.;MCKEE ANDREW J.;PALACIOS LUIS H. |
分类号 |
G01B7/14;G11B5/55;(IPC1-7):G01B7/14 |
主分类号 |
G01B7/14 |
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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