Measuring head for inductive measurement of the thickness of an insulating layer on an electric conductor
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United States of America Patent
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Aug 16, 1988
Grant Date -
N/A
app pub date -
May 28, 1986
filing date -
May 28, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A measuring head has a coil and a contact part for contacting an insulating layer whose thickness is to be measured. The construction and arrangment of the coil are so chosen that in the region of the end face of the contact part, the geometric locations of the points of the conductor which produce an identical change in inductance of the coil lie on concentric circles. The end face of the contact part has a contour which conforms to these concentric circles. Measurement of the thickness of an insulating layer such as a cable sheath thereby becomes independent of the relative position between the measuring head and the material being measured. Accurate guidance of the cable is no longer necessary.
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