METHOD AND A DEVICE FOR DETECTING DEFECTS IN A PACKAGING MATERIAL

A method and a device for detecting defects in a packaging laminate having at least one conductive layer are provided. The method comprises the steps of grounding the conductive layer of the packaging laminate, arranging an electrode adjacent to the packaging laminate, applying a high voltage to the...

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Bibliographische Detailangaben
Hauptverfasser:	LANGOIS PHILIPPE, HALLSTADIUS HANS
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A method and a device for detecting defects in a packaging laminate having at least one conductive layer are provided. The method comprises the steps of grounding the conductive layer of the packaging laminate, arranging an electrode adjacent to the packaging laminate, applying a high voltage to the electrode by ramping the voltage from an initial value towards an upper predetermined value, and detecting a defect in the packaging material by registering dielectric breakdown between the electrode and the conductive layer of the packaging laminate.