Hermetically sealed package tester

G - Physics – 01 – M

Patent

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324/44

G01M 3/18 (2006.01) G01M 3/36 (2006.01)

Patent

CA 1282460

ABSTRACT HERMETICALLY SEALED PACKAGE TESTER A method and apparatus for testing flexible sealed packages of the type wherein the package is at least partially made of a flexible, electrically conductive foil or metallic laminate wherein the capacitance between the flexible conductive foil or metallic laminate of the package and a fixed electrode is measured when the package is subjected externally to a partial vacuum. The apparatus includes an evacuable chamber adapted to support a package under test therewithin so that at least part of the flexible foil or metallic laminate portion of the package lies opposite said fixed electrode and a means for monitoring the capacitance between the electrode and that part of the foil or metallic laminate when the chamber is evacuated. ......................................................

545671

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