LOOSENING DETECTION STRUCTURE AND LOOSENING DETECTION METHOD USING SAID STRUCTURE

摘要

Provided is a loosening detection structure suitable for inspecting loosening of a bolt fastening portion of two components. This loosening detection structure for detecting loosening of a bolt 4 and a nut 6 which fix two components 1, 2 is provided with a conductive film 7 that has a portion with a dimension related to the half wavelength of a high frequency signal propagating inside the components 1, 2 and is adhered to a surface including a hole H, through which the bolt 4 of one component 1 is inserted, so as not be electrically connected to the one component 1 directly. The loosening detection structure is provided with a non-conductive film 8 between the surface of the one component 1 and the conducive film 7 when the surfaces of the components 1, 2 are conductive, and is provided with, on the surface of the other component 2, a second conductive film 9 facing the conductive film 7 when the surfaces of the components 1, 2 are insulators.