S.G. Shatilov - Engineer, Department «Industrial Electronics», Ryazan State Radio Engineering University. E-mail: serg.postbox@mail.ru N.M. Vereschagin - Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University. E-mail: nmver@yandex.ru S.A. Kruglov - Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University. E-mail: pel.rgrtu@yandex.ru A.A. Serezhin - Ph. D. (Eng.), Associate Professor, Department «Industrial Electronics», Ryazan State Radio Engineering University. E-mail: andrei-serezhin@yandex.ru D.S. Kislov - Undergraduate, Department «Industrial Electronics», Ryazan State Radio Engineering University