Apparatus for measuring, and indicating, the thickness of a non-

Details Apparatus for measuring, and indicating, the thickness of a non- Apparatus for measuring, and indicating, the thickness of a non-

1976-06-21

1977-09-27

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3312

Patent

active

040514307

ABSTRACT:
A measuring head using the electrical inductive principle has at least one probe with a surface for presentation to a surface of a non-metallic coating over an arcuate metallic surface, the thickness of which coating is to be measured. To offset the varying inductive effects caused by variations in diameter of the article being measured, the surface of the probe is profiled--having a Vee shaped profile. The profile is such that articles, such as cables, of smaller diameter enter the Vee shaped profile deeper than larger diameter articles. By this means only variations in inductive effect resulting from variations in coating thickness occur.

REFERENCES:
patent: 3919628 (1975-11-01), Mandula et al.

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