Glide detect head with predictable asperity contact region

Details Glide detect head with predictable asperity contact region Glide detect head with predictable asperity contact region

1997-07-21

1998-10-06

Brock, Michael

Measuring and testing

Surface and cutting edge testing

Roughness

G01B 528

Patent

active

058179313

ABSTRACT:
A glide detect head includes a slider and a transducer. The slider includes a slider body with a leading edge, a trailing edge, and a slider surface therebetween. Substantially parallel rails are spaced apart and extend from the leading edge to a location spaced from the trailing edge. An asperity contact tab is disposed on the slider surface proximate the trailing edge such that asperity contact between the glide detect head and asperities occurs at the asperity contact tab. The transducer is disposed on the asperity contact tab for providing and output based upon asperity contact.

REFERENCES:
patent: 5406432 (1995-04-01), Murray
patent: 5488524 (1996-01-01), Cunningham
patent: 5612839 (1997-03-01), Jacques
patent: 5640089 (1997-06-01), Horikawa et al.
patent: 5689064 (1997-11-01), Kennedy et al.
Yeack-Scranton, "Novel Piezoelectric Transducers to Monitor Head-Disk Interactions", IEEE Transactions on Magnetics, vol. MAG-22, No. 5, Sep. 1986, pp. 1011-1016.

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