Automatic monitoring system designed to detect defects in PET preformsK.V. Degtyareva, S.V. Nikolaev, V.A. Nelyub, V.S. Tynchenko and A.S. BorodulinE3S Web of Conf., 458 (2023) 02002DOI: https://doi.org/10.1051/e3sconf/202345802002