Space charge measurements by the alternating thermal wave method: thermal analysis and simulations for data processing improvement

Reboul, J.M.; Mady, Franck

doi:10.1109/icsd.2004.1350339

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…Heating can be produced using either pulsed [1], continuous [7] or modulated lasers [8,9], or by directly applying a temperature tank to the sample [10,11,12]. In short-circuit measurement conditions, the measured current ( ) …”

Section: Measurement Principlementioning

confidence: 99%

Surface temperature measurement for space charge distribution measurements with thermal methods

Filloy-Corbrion

Boué

Géron

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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The implementation of space charge measurements based on thermal perturbation on thin films requires an improvement of the temperature distribution estimation at the surface and in the depth of dielectric materials for getting reliable space charge profile measurements. Absolute temperature variations are needed, both in time and space. The present contribution addresses surface temperature measurements based on either thermoelectric or bolometric effects. Both responses have been measured on coppercoated silicon nitride layers and gold-coated polypropylene films heated with a Nd:YAG laser pulse. It is shown that high temporal resolution thermal response can be obtained through the bolometric response and that the information appears nearly independent on the nature of the coating electrode. The setup developed provides good signal to noise ratio for heated electrodes of a few ohm resistance. Strategies are still to develop to get the temperature profile in the insulating sample layer.

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Section: Measurement Principlementioning

confidence: 99%

Surface temperature measurement for space charge distribution measurements with thermal methods

Filloy-Corbrion

Boué

Géron

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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“…57 The main difference between the TSM is that employed to have a better resolution using a thermal excitation over a long period of time rather than a single stimulus. 58 As a matter of fact, the thermal excitation brought by the radiating electrode does not give sufficient resolving power for the space charge measurement in thin dielectric films (due to a high number of information lost during the beginning of the transient current). The resolving power can be improved by using a long periodic thermal excitation.…”

Section: E Alternative Thermal Wave Methods (Atwm)mentioning

confidence: 99%

Contributed Review: Review of thermal methods for space charge measurement

Imburgia

Romano

Caruso

et al. 2016

Review of Scientific Instruments

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Decay of space charge in conjugated polymers measured using pyroelectric current transients J. Appl. Phys. 93, 2884 (2003) 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. Published by AIP Publishing. [http://dx

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