title: Contributed Review: Review of thermal methods for space charge measurement.
abstract: The space charge accumulation phenomenon has garnered great interest over the last two decades because of the increased use of direct 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 space charge. 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 the spatial resolution are described, reporting also the main related applications.
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Imburgia
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Romano
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Caruso
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Viola
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Miceli
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Riva Sanseverino
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Madonia
authors.affiliation: DEIM, University of Palermo, Palermo 90128, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Schettino