Head/disc force transducer

Details Head/disc force transducer Head/disc force transducer

1997-03-14

1999-06-22

Biegel, Ronald

Measuring and testing

Surface and cutting edge testing

Roughness

G01B 528

Patent

active

059152710

ABSTRACT:
An apparatus, and method of forming the same, for measuring a head-to-disc contact force in a magnetic disc storage system are disclosed. A slider body of the head has a trailing edge and an air bearing surface. A flexible beam is formed on the slider body at a corner between the air bearing surface and the trailing edge. Contact between the flexible beam and the disc causes deflection of the flexible beam. A degree of deflection of the flexible beam is indicative of the force caused by contact between the head and the disc. The apparatus includes first and second electrical access terminals for use in determining a parameter indicative of the quantity of deflection of the flexible beam and thereby of the force caused by contact between the head and the disc.

REFERENCES:
patent: 4532802 (1985-08-01), Yeack-Scranton et al.
patent: 5373213 (1994-12-01), Smith
patent: 5488857 (1996-02-01), Homma et al.
patent: 5521772 (1996-05-01), Lee et al.
patent: 5571972 (1996-11-01), Okada
patent: 5581021 (1996-12-01), Flechsig et al.
patent: 5640089 (1997-06-01), Horikawa et al.
patent: 5689064 (1997-11-01), Kennedy et al.

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