A DEVICE FOR DETECTING LAMELLA TEARING USING NAUT

摘要

The present invention relates to a device to detect a lamella tearing using a non-contact ultrasonic wave and, more specifically, includes: a stage to fixate a test piece to detect a lamella tearing; more than at least one probe to emit a predetermined frequency of an ultrasonic wave onto the test piece while moving towards a predetermined shaft on the stage; a free amp to amplify the ultrasonic pulse emitted by the probe and the test piece penetrated, to a predetermined amplitude; a pulse receiver to receive the pulse signal amplified by the free amp; and a calculation unit to detect the lamella tearing by analyzing the received pulse signal.