TY - JOUR A1 - Monzó Cabrera, Juan AU - Pedreño Molina, Juan Luis AU - Toledo Moreo, Ana Belén T1 - Feedback control procedure for energy efficiency optimization of microwave-heating ovens Y1 - 2009 SN - 0263-2241 UR - http://hdl.handle.net/10317/1492 AB - This paper presents an automatic calibration procedure that permits to industrial or domestic microwaves ovens working at optimal energetic efficiency conditions. This method is based on a low-power iterative measurement of the microwave oven scattering parameters for several sample locations to find the most efficient position by measuring energy reflections at feeding ports and the coupling between them for each sample position. These low-power measurements have been validated through high-power microwave- heating tests showing that, at the optimal estimated position, microwave absorption and therefore temperature increment is maximum. The method provides good matching levels independently of the sample geometry and permittivity without the need of any external matching device. KW - Teoría de la Señal y las Comunicaciones KW - Microwave heating KW - Efficiency optimization KW - Microwave oven KW - Sample positioning control KW - Calentamiento por microondas KW - Optimización de la eficiencia KW - Hornos microondas KW - Muestra de control de posicionamiento LA - eng PB - Elsevier ER -