发明授权
- 专利标题： Cartridge screening technique by using the electrical dynamic bearing resistance
- 专利标题（中）： 滤芯筛选技术采用电动轴承阻力
-
申请号： US09792884申请日： 2001-02-23
-
公开(公告)号： US06549020B2公开(公告)日： 2003-04-15
- 发明人: Eng Hock Lim , Quek Leong Choo , Myint Ngwe , Kah Liang Gan , Beng Wee Quak
- 申请人： Eng Hock Lim , Quek Leong Choo , Myint Ngwe , Kah Liang Gan , Beng Wee Quak
- 主分类号： G01R2708
- IPC分类号： G01R2708
摘要：
A method for characterizing a bearing cartridge based on a preload applied to the bearing cartridge used in a disc drive, to increase disc drive yield rates. The method begins by loading the bearing cartridge on to a test fixture and to an actuator assembly such that the actuator is rotatably attached to the base by the bearing cartridge. Then, the method includes inducing a steady swing in the actuator. Then, the method includes measuring a voltage drop that occurs across the bearing cartridge during the steady swing to characterize the preload applied to the bearing cartridge.