Magneto-inductive systems as a method to reduce the environmental risks of the existing systems of incoming quality control of metallurgical raw materialsA. A. Fogel, S. V. Kochemirovskaya, D. A. Mokhorov, A. V. Isayev and V. A. KochemirovskyE3S Web Conf., 311 (2021) 09004DOI: https://doi.org/10.1051/e3sconf/202131109004