Strip center line sensor

Details Strip center line sensor Strip center line sensor

1979-05-23

1981-09-01

Karlsen, Ernest F.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324DIG1, G01R 2726

Patent

active

042874718

ABSTRACT:
A sensing device for sensing the position of a continuously moving strip of metal and providing a signal for centering the strip on a given line of movement which has good linearity, good stability, and a time stable output. Segments of a pair of capacitor plates overlap each edge of the strip. These are energized by a square wave signal and the variation in capacity between the plates and the strip caused by lateral movement of the strip is detected by a diode bridge and the resultant signal made available to power apparatus for correcting the position of the web.

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