Non-destructive inspection method and hybrid inspection method for lining products

Abstract

The objective of this invention is to provide a non-destructive inspection method for lining products that allows the internal state of a lining product to be examined from the outside and enables the detection of abnormalities such as bulging or delamination of a resin liner, deterioration of an adhesive, as well as weld lines or vent lines in the resin liner. 　　The non-destructive inspection method for lining products of this invention is a method for inspecting the internal state of a lining product from the outside. In this method, an input signal is transmitted to the lining product serving as a measurement object, a response signal from the measurement object is received, and an abnormal part of the measurement object is detected based on the response signal.

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