TY - JOUR AU - Бухаров, С.В. AU - Овсяніков, В.В. PY - 2011/06/01 Y2 - 2024/03/29 TI - Diagnosis of quality parameters of coal and liquid petroleum products by electromagnetic methods JF - Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia JA - RADAP VL - 0 IS - 45 SE - DO - 10.20535/RADAP.2011.45.120-130 UR - https://radap.kpi.ua/radiotechnique/article/view/219 SP - 120-130 AB - <p>The results of mathematical modeling of the<strong> </strong>waveguide and resonator methods for diagnosis of the parameters of quality of coal and liquid<strong> </strong>petroleum products (calorific value, ash, moisture). A new approach to defining the<strong> </strong>waveguide by the method of complex permittivity (CP) of the substance, based on the results<strong> </strong>of measuring its voltage standing wave ratio in probing the in some frequency range. Considered<strong> </strong>resonator method for determining the CP of liquid petroleum products by placing in the<strong> </strong>pipe cavity measuring cells. The possibility of controlling the quality of coal on the conveyor<strong> </strong>with the use of attenuation of electromagnetic waves passing through the layer under coal is<strong> </strong>study. The results of the research proposed to use for diagnostic and quality control of these<strong> </strong>substances to be transported on a conveyor belt or pipeline wire.</p> ER -