In the last decade, due to the increased use of direct current, the space charge accumulation phenomenon has reached more interest. In this regard, several non-destructive measurement systems were used. In particular, for solid dielectrics, the acoustic methods have had greater success. This review presents a brief historical evolution of the Pulse Electro- Acoustic (PEA) method, describing the working operation, the thicknesses analyzed and the spatial resolution for the different configurations of the PEA cell. The Pressure Wave Propagation (PWP) method in both configurations Piezo-PWP and Laser Induced Pressure Pulse (LIPP) is also described.
G. Ala , M. Caruso , V. Cecconi , S. Ganci , A. Imburgia , R. Miceli , et al. (2015). Review of acoustic methods for space charge measurement. In 2015 AEIT International Annual Conference (AEIT) [10.1109/AEIT.2015.7415270].
Review of acoustic methods for space charge measurement
ALA, Guido;CARUSO, Massimo;GANCI, Salvatore;Imburgia, Antonino;MICELI, Rosario;ROMANO, Pietro;VIOLA, Fabio
2015-01-01
Abstract
In the last decade, due to the increased use of direct current, the space charge accumulation phenomenon has reached more interest. In this regard, several non-destructive measurement systems were used. In particular, for solid dielectrics, the acoustic methods have had greater success. This review presents a brief historical evolution of the Pulse Electro- Acoustic (PEA) method, describing the working operation, the thicknesses analyzed and the spatial resolution for the different configurations of the PEA cell. The Pressure Wave Propagation (PWP) method in both configurations Piezo-PWP and Laser Induced Pressure Pulse (LIPP) is also described.
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