Eddy-current testing device for metal tubes which are bent at le

Details Eddy-current testing device for metal tubes which are bent at le Eddy-current testing device for metal tubes which are bent at le

1976-07-29

1979-05-08

Tokar, M.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324228, G01R 3314

Patent

active

041538757

ABSTRACT:
The eddy-current testing device operates by translational motion of a probe within the interior of tubes to be tested. The probe comprises in succession from front to rear in its direction of normal translational motion a front guiding member, a coil-carrying member and a rear guiding member connected together by an elastic means which tends to maintain these three members in aligned relation. At least the coil-carrying member has maximum transverse dimensions which are smaller than the internal diameter of the tube. An emitter-receiver coil of the probe is connected electrically to an external supply and scanning system by means of a cable which is secured mechanically to the rear guiding member.

REFERENCES:
patent: 2472319 (1949-06-01), Turner
patent: 3474541 (1969-10-01), Cubberly
patent: 3483466 (1969-12-01), Crouch et al.
patent: 3906358 (1975-09-01), Stone

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