Circuitry for measuring magnetic head flying characteristics

Details Circuitry for measuring magnetic head flying characteristics Circuitry for measuring magnetic head flying characteristics

1982-09-30

1984-10-23

Lynch, Michael J.

Electricity: measuring and testing

A material property using electrostatic phenomenon

Frictionally induced

G01N 2760

Patent

active

044790902

ABSTRACT:
A method for monitoring characteristics of a magnetic recording head which is flying in an air bearing relationship over a rotating magnetic recording disk containing Fe.sub.2 O.sub.3 detects triboelectric charges generated by intermittent contact between the head and the disk and also detects modulations in the spacing between the head and the disk surface when the two are not in contact.

REFERENCES:
patent: 568205 (1896-09-01), Norden
patent: 3601694 (1971-08-01), Checketts et al.
patent: 3737569 (1973-06-01), Snelling
patent: 3855625 (1979-09-01), Watrous
patent: 4167765 (1974-12-01), Garnier et al.
Rothgordt et al., "Triboelectric Charging of Thin Foils and Its Application to a New Recording Principle", IEEE Transactions, vol. IA-13, May/Jun. 1977, pp. 223-226.

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