A.F. Kryachko1, M.A. Kryachko2, A.V. Medzigov3

1–3 St. Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)

2 JSC «Lukoil-Technologies» (Moscow, Russia)

3 FGUP «GosNIIPP » (St. Petersburg, Russia)

1 alex_k34.ru@mail.ru, 2 mike_kr@mail.ru, 3 medzigov@ya.ru