APPARATUS FOR NONDESTRUCTIVE CRACK INSPECTION
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
Nov 28, 2014
filing date -
Nov 28, 2013
priority date (Note) -
Abandoned
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Abstract
According to the present invention, it is possible to determine a defect on a product caused in a pressing process by applying a predetermined acoustic signal to an object to be inspected and then sensing propagation of the applied signal, and it is possible to improve inspection performance, using an acoustic sensor capable of sensing sounds in an audible band and a sound collector that collects sounds and prevents noise. Further, it is possible to prevent defective panels from being put into the following process line by inspecting panels produced in a panel production line.
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