ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 23 October 2008
Page Count: 5

The Contemporary Definition of Complex Relative Permittivity

Wang, Shiliang
Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan,

(Received 24 January 2008; accepted 23 September 2008)

Abstract

ASTM D150 [Standard Test Methods for AC Loss Characteristic and Permittivity (Dielectric Constant) of Solid Electrical Insulation, 2004] is the standard for measurement of alternating current (AC). Aimed at an analysis of this standard and proceeding from the information transmission characteristic of the dielectric, the definition of ac complex relative permittivity ε_r^′(=I_ac^′/I₀=Q_ac^′/Q₀=C_ac^′/C₀=ε^′/ε₀) is put forward anew. Faraday’s “relative permittivity” is a result of this definition under the specific condition (ω=0).

Keywords:
information transmission, ac, ac (equivalent), complex permittivity, complex capacitance

Paper ID: JAI101658
DOI: 10.1520/JAI101658
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