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Zerstörungsfreie Tomographie von Raumladungs- und Polarisationsverteilungen mittles Wärmepulsen

  • Non-destructive, three-dimensional imaging of space-charge and polarization distributions in electret materials has been implemented by means of laser-induced thermal pulses. In pyroelectric films of poled poly(vinylidene fluoride), images of up to 45 x 45 pixels with a depth resolution of less than 0.5 mu m and a lateral resolution of 40 mu m were recorded, the latter being limited by fast thermal diffusion in the absorbing metallic front electrode. Initial applications include the analysis of polarization distributions in corona-poled piezoelectric sensor cables and the detection of patterned space-charge distributions in polytetrafluoroethylene films.

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Metadaten
Author details:Axel MellingerORCiDGND, Rosaura Flores SuárezGND, Rajeev Singh, Michael WegenerORCiDGND, Werner WirgesORCiD, Reimund GerhardORCiDGND
URL:http://www.oldenbourg-link.com/loi/teme
DOI:https://doi.org/10.1524/teme.2007.74.9.437
ISSN:0171-8096
Publication type:Article
Language:German
Year of first publication:2007
Publication year:2007
Release date:2017/03/24
Source:Technisches Messen : tm. ISSN 0171-8096. - 74 (2007), 9, S. 437 - 444
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer review:Referiert
Institution name at the time of the publication:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik
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