ФУНКЦІОНАЛЬНА СХЕМА СИСТЕМИ АВТОМАТИЧНОГО УПРАВЛІННЯ РЕКУПЕРАТИВНИМ ГАЛЬМУВАННЯМ ДЛЯ ЕЛЕКТРОВОЗІВ ПОСТІЙНОГО СТРУМУ ЗІ СТАТИЧНИМИ ПЕРЕТВОРЮВАЧАМИ

A functional chart of DC electric locomotives recuperative braking automatic control system, with power supplies of excitation windings from a static activator, has been developed.Разработана функциональная схема системы автоматического управления рекуперативным торможением электровозов постоянного тока при питании обмоток возбуждения от статического возбудителя.Розроблено функціональну схему системи автоматичного управління рекуперативним гальмуванням електровозів постійного струму при живленні обмоток збудження від статичного збуджувача

Electrodynamic characteristics of the nonresonant system of transverse slots in the wide wall of a rectangular waveguide

The method of induced magnetomotive forces is applied to the problem of electromagnetic wave radiation by a system of transverse slots located in the wide wall of finite thickness of a rectangular waveguide. The paper includes calculation of space-energy characteristics of linear multislot nonresonant antenna arrays of the leaky wave. Comparison of the numerical results, obtained by Galyorkin’s method, with the experimental data is performed

Two-channel antenna of the scanning radiometer of 20-centimeter range

A flat antenna was developed in the form of a nonequidistant array of horns located on a disk 4.5 wavelengths in diameter. The main maximum of the directivity diagram is oriented at the angle of 45° to the array. The antenna operates on two orthogonal (vertical and horizontal) linear polarizations and is designed for the use in the scanning aerospace two-channel radiometer of the decimeter wavelength range