Electrical cable jacket and conductor eccentricity detector incl

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material

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32420717, G01R 3312, G01B 730

Patent

active

055415091

ABSTRACT:
An apparatus for use in determining the thickness of the insulated coating of an electrical cable manufactured in an extrusion process having means for generating an alternating current in the cable core coupled with means for detecting the magnetic field produced by the current flow in the cable such that in combination with a measurement of the distance from the detection means to the coated cable surface, a determination of coating thickness may be made.

REFERENCES:
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patent: 4086044 (1978-04-01), Sikora
patent: 4260566 (1981-04-01), Brouwer et al.
patent: 4349780 (1982-09-01), Zuber et al.
patent: 4555665 (1985-11-01), Stanley et al.
patent: 4641525 (1987-02-01), Merki
patent: 4849694 (1989-07-01), Coates
patent: 5055793 (1991-10-01), Mukahey
patent: 5214376 (1993-05-01), Sikora

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