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New sample cell configuration for wide-frequency dielectric spectroscopy : DC to radio frequencies

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Title: New sample cell configuration for wide-frequency dielectric spectroscopy : DC to radio frequencies
Authors: Nakanishi, Masahiro1 Browse this author
Sasaki, Yasutaka2 Browse this author
Nozaki, Ryusuke3 Browse this author
Authors(alt): 中西, 真大1
佐々木, 康隆2
野嵜, 龍介3
Issue Date: Dec-2010
Publisher: American Institute of Physics
Journal Title: Review of Scientific Instruments
Volume: 81
Issue: 12
Start Page: 123902
Publisher DOI: 10.1063/1.3518940
PMID: 21198035
Abstract: A new configuration for the sample cell to be used in broadband dielectric spectroscopy is presented. A coaxial structure with a parallel plate capacitor (outward parallel plate cell: OPPC) has made it possible to extend the frequency range significantly in comparison with the frequency range of the conventional configuration. In the proposed configuration, stray inductance is significantly decreased; consequently, the upper bound of the frequency range is improved by two orders of magnitude from the upper limit of conventional parallel plate capacitor (1 MHz). Furthermore, the value of capacitance is kept high by using a parallel plate configuration. Therefore, the precision of the capacitance measurement in the lower frequency range remains sufficiently high. Finally, OPPC can cover a wide frequency range (100 Hz-1 GHz) with an appropriate admittance measuring apparatus such as an impedance or network analyzer. The OPPC and the conventional dielectric cell are compared by examining the frequency dependence of the complex permittivity for several polar liquids and polymeric films.
Rights: Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Rev. Sci. Instrum. 81, 123902 (2010) and may be found at
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 野嵜 龍介

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