PISTON RING DEVICE HAVING NON-RADIOISOTOPIC, OBJECT TESTING DEVICE USING NON-RADIOISOTOPIC, AND OBJECT TESTING METHOD USING OBJECT TESTING DEVICE

摘要

The present invention relates to a piston ring device having a non-radioisotopic, an object testing device using a non-radiaoisotopic, and an object testing method using the object testing device. The piston ring device comprises: a first main body inserted into a groove formed in a piston installed in an engine; and a first isotope unit formed in the first main body since a non-radioisotopic is injected into a preset penetration position.;COPYRIGHT KIPO 2016