Non-destructive metal inspection apparatus using a sharp-pointed

Details Non-destructive metal inspection apparatus using a sharp-pointed Non-destructive metal inspection apparatus using a sharp-pointed

1974-09-11

1976-08-24

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G02R 3312

Patent

active

039769364

ABSTRACT:
An eddy current non-destructive metallic flaw inspection apparatus employing a pin coil detector. One end of the pin is made very sharp in order to effectively cause penetration of the concentrated magnetic flux emitted from the sharp point of the pin into the material to be inspected. An outside-type inspector is used to inspect rod products of ferromagnetic material. Two sets of pin coils radially confront to the product from its outside. An inside-type inspector is used to inspect pipe products. The inspector of this type is inserted within the pipe to be inspected and slides longitudinally along the pipe.

REFERENCES:
patent: 2353211 (1944-07-01), Zuschlag
patent: 3271664 (1966-09-01), Mountz et al.
patent: 3336527 (1967-08-01), Paulson et al.
Nerwin, H.; Eddy Current Testing of Tubular Steel Products; Mat. Eval.; Apr. 1966; pp. 192-196.

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