发明名称 |
METHOD AND APPARATUS FOR BALANCING A ROTARY ACTUATOR BY MODIFYING WEIGHT DISTRIBUTION CHARACTERISTICS OF THE ROTARY ACTUATOR FOR LOCATING AN INSTALLED HEAD STACK ASSEMBLY PORTION CENTER-OF-GRAVITY ALONG A PIVOT AXIS |
摘要 |
An aspect of the invention can be regarded as a method of balancing a rotary actuator for use in a rotatable head stack assembly (HSA) portion in a disk drive. The rotary actuator has a pivot axis, and the rotatable HSA portion has an installed HSA portion center-of-gravity. The method provides for determining a desired rotary actuator center-of-gravity location for locating the installed HSA portion center-of-gravity along the pivot axis for mitigating acceleration of the rotary actuator about the pivot axis due to external linear acceleration experienced by the disk drive during a track-follow operation. The method further provides for measuring weight distribution characteristics of the rotary actuator to determine an actual rotary actuator center-of-gravity. The method further provides for selectively modifying weight distribution characteristics of the rotary actuator to locate the actual rotary actuator center-of-gravity at the desired rotary actuator center-of-gravity location.
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申请公布号 |
US6571460(B1) |
申请公布日期 |
2003.06.03 |
申请号 |
US20020295731 |
申请日期 |
2002.11.15 |
申请人 |
WESTERN DIGITAL TECHNOLOGIES, INC. |
发明人 |
CASEY SHAWN E.;CODILIAN RAFFI;DAVIS ROGER G.;HARO JORGE |
分类号 |
G11B5/48;G11B5/55;(IPC1-7):H23P19/00 |
主分类号 |
G11B5/48 |
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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