Contributed Review: Review of thermal methods for space charge measurement

The spacecharge accumulation phenomenon has garnered great interest over the last two decades because of the increased use ofdirect current in high voltage electrical systems. In this context, a significant relevance has been achieved by the thermal methods, used for solid dielectrics. This paper presents a review of this non-destructive measurement system used for the measurement of spacecharge. The thermal pulse method, the thermal step method, and the laser intensity modulation method are described. For each configuration, the principle of operation, the thicknesses analyzed, and thespatial resolution are described, reporting also the main related applications.

Source: Review of Scientific Instruments - November 28, 2016 Category: Physics Authors: A. Imburgia, P. Romano, M. Caruso, F. Viola, R. Miceli, E. Riva Sanseverino, A. Madonia and G. Schettino Source Type: research