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RESEARCH PRODUCT

Review of acoustic methods for space charge measurement

A. ImburgiaV. CecconiSalvatore GanciPietro RomanoRosario MiceliMassimo CarusoGuido AlaFabio Viola

subject

Materials sciencePressure Wave Propagation methodSystem of measurementAcousticsDirect currentDielectricLaser Induced Pressure Pulse methodSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciSpace chargeTemperature measurementSpace chargePulse Electro- AcousticPulse (physics)PIPWPSettore ING-IND/31 - ElettrotecnicaElectronic engineeringacoustic methodPressure wave propagationPiezo-PWPImage resolution

description

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.

yearjournalcountryeditionlanguage
2015-10-01
10.1109/aeit.2015.7415270http://hdl.handle.net/10447/172266