Self-loaded pendulum for slider flexure stiffness measurements

Details Self-loaded pendulum for slider flexure stiffness measurements Self-loaded pendulum for slider flexure stiffness measurements

2007-07-31

2007-07-31

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

C073S779000, C360S244000, C324S207150

Reexamination Certificate

active

11522182

ABSTRACT:
A device is provided by which the stiffness coefficient of a flexure, in either a pitch or roll direction, can be measured while a slider is mounted thereon and while the flexure and slider are in a loaded condition as might be obtained during normal operational conditions of a HGA in a HDA. There are two methods of making the measurement, a static method in which the slider is loaded by an external weight called a pendulum and the angular displacement of the slider is measured, and a dynamical method in which the pendulum is caused to oscillate while in contact with the slider and its natural and loaded frequencies of oscillation are measured.

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“Slider Pitch Moment Associated with Dimple Friction”, by Li-Yan Zhu et al., to be published in ASME J. Tribology, TRIB2004-64251 (Final), SAE Magnetics (H.K.), US Office 100 S. Milpitas Blvd., CA 95035, USA.

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