FLAW INSPECTION DEVICE OF MAGNETIC TAPE AND FLAW INSPECTION METHOD USING IT

摘要

PROBLEM TO BE SOLVED: To provide a flaw inspection device of a magnetic tape capable of preventing the normal part of the magnetic tape from being recognized as a flaw part by mistake and capable of more accurately detecting the position of the flaw part, and an flaw inspection method using it.;SOLUTION: The whole in the lateral direction of the magnetic tape T is irradiated with the irradiation light transmitted through a filter 24 having a stripe pattern formed thereon and the surface on the side opposite to the irradiated surface R irradiated with the irradiation light of the magnetic tape T is supported by a backup roll 12 while the irradiated surface R is photographed to detect the flaw part Td of the magnetic tape T on the basis of the stripe pattern of the photographed irradiated surface R.;COPYRIGHT: (C)2006,JPO&NCIPI