Thermal asperity sensor head with multiple spaced asperity senso

Details Thermal asperity sensor head with multiple spaced asperity senso Thermal asperity sensor head with multiple spaced asperity senso

1997-05-13

1998-09-15

Raevis, Robert

Measuring and testing

Surface and cutting edge testing

Roughness

G01B 528

Patent

active

058081844

ABSTRACT:
An asperity sensing head is used for detecting asperities on the surface of a disc while the disc is rotated. The asperity sensing head includes a slider body having a first rail and an air bearing surface. A first asperity sensor is carried by the slider body in the first rail. A second asperity sensor is also carried by the slider body in the first rail wherein the first and second asperity sensors are separated by a groove in the first rail.

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