System and method using magnetic tape for testing of small cylin

Details System and method using magnetic tape for testing of small cylin System and method using magnetic tape for testing of small cylin

1975-04-09

1977-07-12

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3312

Patent

active

040357210

ABSTRACT:
The invention relates to a system and method of testing small cylindrical parts wherein a part is journalled for free rotation about a substantially stationary axis with one side of the part being frictionally engaged with a magnetic tape moved longitudinally to rotate the part and to transfer a magnetic flux pattern at the surface of the part to the tape. Important features relate to the provision of engagement means for obtaining non-skid intimate contact between the tape and the part, to the application of a biasing field to the tape at the area of interengagement between the tape and the part and to the manner of supporting the part.

REFERENCES:
patent: 2648435 (1953-08-01), Kodis
patent: 3262053 (1966-07-01), Nasir et al.
patent: 3341771 (1967-09-01), Crouch et al.
patent: 3760263 (1973-09-01), O'Connor et al.

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