Apparatus for measuring cell volume in a gravure printing surfac

Details Apparatus for measuring cell volume in a gravure printing surfac Apparatus for measuring cell volume in a gravure printing surfac

1974-09-19

1976-01-06

Corcoran, Robert J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

156 14, 156 18, 156345, G01R 3300

Patent

active

039315703

ABSTRACT:
A method of and associated apparatus for measuring cell volume in a gravure printing surface including the steps of positioning a probe including a pair of magnetic reaction devices over an engraved area with one device over an area with cells and the other device over an area without cells, providing a magnetic field to be sensed by the magnetic reaction devices, sensing the relative reduction in the strength of the magnetic field due to the presence of non-ferrous metal to provide a differential signal proportional to cell volume, and conditioning and recording the differential signal, as desired.

REFERENCES:
McMaster et al., Magnetic Reaction Analyzer; ASME Publication No. 66-PEM-5; Feb., 1967; pp. 1-13.

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