Research Project between professors from LMI, USP and University of Potsdam was approved by CAPES and DAAD. The project entitle Optimization of piezoelectret sensors for non-invasive measurements in high-voltage equipment, coordinated by professor Ruy Alberto Corrêa Altafim (USP) and Professor Reimund Gerhard (Potsdam) was approved for a two years collaboration. (see result)