Partial Discharge Assessment Using Optical Probe

We here demonstrate the relevance of an electrooptic probe for the comprehensive and non invasive characterization of the electric field associated to partial discharge within aeronautic connectors. The proposed technique leads to the partial discharge detection thanks to a real time measurement of the field. The voltage threshold for discharges ignition has been evaluated. Finally, the precise localization of the discharges has been determined thanks to high resolution mapping of the field.