Hole tester using a permeable protective sleeve insertible in sa

Details Hole tester using a permeable protective sleeve insertible in sa Hole tester using a permeable protective sleeve insertible in sa

1977-09-16

1979-02-27

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324238, G01R 3312

Patent

active

041421540

ABSTRACT:
Inspection for hole quality in structures is enhanced by inserting a smooth, thin-wall hollow sleeve into a hole to be tested and moving an eddy current probe within the sleeve. Mechanization is improved by apparatus which inserts and holds the sleeve in the hole and has drive means operable so as independently to rotate the probe or move it linearly, or both, within the stationary sleeve.

REFERENCES:
patent: 2540588 (1951-02-01), Long
patent: 2955253 (1960-10-01), Bryant et al.
patent: 3209243 (1965-09-01), Walters et al.
patent: 3718855 (1973-02-01), Rogel et al.
patent: 3831084 (1974-08-01), Scalese et al.
Reeves, C. R., A Mechanized E. C. Scanning System for Aircraft Struts; Mat. Eval.; Mar. 1973; pp. 48-52.

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