A.A. Titkov – Post-graduate Student, Department «Electronic Instruments and Devices», 

Yuri Gagarin State Technical University of Saratov

E-mail: titkov-1973@yandex.ru

A.S. Oleynik – Dr.Sc.(Eng.), Professor, Department «Electronic Instruments and Devices», 

Yuri Gagarin State Technical University of Saratov

E-mail: anatoly.semenovich@gmail.com

M.S. Stepanov – Engineer, JSC «SPE «Almaz» (Saratov) E-mail: little_hans@mail.ru