Method and apparatus for measuring the thickness of a body

Details Method and apparatus for measuring the thickness of a body Method and apparatus for measuring the thickness of a body

D - Textiles, Paper

21

F

340/123.6, 340/1

D21F 7/06 (2006.01)

Patent

CA 1096956

Abstract of the Disclosure A caliper gauge for measuring the thickness of a sheet has a transmitter generating a magnetic field on one side of the sheet and receiver detecting the amplitude of the magnetic field on the other side of the sheet. Both the transmitter and receiver are maintained at a constant distance from the sheet. The transmitter comprises an electrical wire wound a plurality of times about a cylindrically shaped body of a magnetically susceptible material. The receiver also comprises a cylindrically shaped body with an electrical wire wound a plurality of times about it. The transmitter is positioned such that the axis of the cylindrical body is substantially perpendicular to the sheet. The receiver is positioned such that the axis of the cylindrical body is substantially aligned with the axis of the transmitter.

301795

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