Method and system for checking sealed containers for pinholes by comparing two discharge currents

Method and system for checking sealed containers for pinholes by comparing two discharge currents

A method of and a system for checking sealed containers for pinholes with contents enclosed therein by placing a sealed container between first and second electrodes, impressing voltage across the first electrode and second electrodes to generate two discharge current flows on the container and betw...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KAKUMOTO, MICHIO, NAKAGAWA, HIROSI, OE, EIZI
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
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 of and a system for checking sealed containers for pinholes with contents enclosed therein by placing a sealed container between first and second electrodes, impressing voltage across the first electrode and second electrodes to generate two discharge current flows on the container and between the first electrode and second electrode respectively, detecting the discharge currents individually and converting the difference between the detected values to a detection signal value.