Проаналізовано недоліки ультразвукового імпульсного методу. Запропоновано енергетичний критерій та спосіб вимірювання затримки поширення акустичних коливань. Теоретично обґрунтовано високу завадостійкість запропонованого способу. Розроблено структурну схему реалізації та доведено статистичним моделюванням високу завадостійкість способу.
Voltage and current are sharply variable random (stochastic) processes in traction networks of DC electric transport systems. As a result, electronic and hybrid electricity meters used in electric systems measure electric power with a large relative error that significantly exceeds that of their accuracy class. In this paper the principle of developing smart meters for accounting the electricity transmitted from traction substations to electric rolling stock through a traction network is proposed.
To study the 11-year Sun dynamics as an external process that influences the dynamics of the tectonic plates of the planet Earth held a lot of studies based on such a large time duration of this period. But as is known, the frequency of the destruction of tectonic plates may have other timing parameters that may be shorter or longer than 11 or 22. This paper presents a correlation analysis of short-period permissible minimum time interval of the earthquake processes and dynamics of the solar plasma.