RT Conference Proceedings T1 Modelling and electro-optical testing of suspended particle devices A1 Vergaz Benito, Ricardo A1 Sánchez Pena, José Manuel A1 Barrios Puerto, David A1 Vázquez García, María Carmen A1 Contreras Lallana, Pedro AB Some smart windows make use of suspended particle devices (SPDs) which are made of charged rod-shape particles that change their orientation in an applied electric field, thereby allowing transmittance control. In this work, the electro-optical behaviour of a commercial SPD is analyzed. Impedance analysis shows characteristics similar to those of a Randles circuit, and a modified equivalent circuit is proposed and experimentally validated. Intermediate levels of transmittance are obtained using a customized field programmable gate array (FPGA)-based electrical circuit. Finally, measurements are taken to check the applicability of the SPD device and control system in smart glazing or photonic applications. PB Elsevier SN 0927-0248 YR 2008 FD 2008 LK http://hdl.handle.net/10016/4032 UL http://hdl.handle.net/10016/4032 LA eng NO Universidad Carlos III de Madrid NO This research was partially supported by funds from the Spanish Ministry of Science and Technology (Project PTR95-0940.01.OP), and by Comunidad de Madrid (Project FACTOTEMCM:S-0505/ESP/000417). DS e-Archivo RD 28 abr. 2024