An Improved Modeling of TDR Signal Propagation for Measuring Complex Dielectric Permittivity

Time domain reflectometry（TDR） is a measurement technique based upon transmission line theory. The solutions of transmission line equations are reformulated in terms of independent physical properties, instead of coupled per-unit-length circuit parameters. The complete TDR response is effectively mo...

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Bibliographic Details
Published inJournal of earth science (Wuhan, China) Vol. 26; no. 6; pp. 827 - 834
Main Authors Lin, Chih-Ping, Tang, Shr-Hong, Lin, Chun-Hung, Chung, Chih-Chung
Format Journal Article
LanguageEnglish
Published Wuhan China University of Geosciences 01.12.2015
Springer Nature B.V
Subjects
Biogeosciences
Dielectric properties
Earth and Environmental Science
Earth science
Earth Sciences
Geochemistry
Geology
Geotechnical Engineering & Applied Earth Sciences
Matrix
Measurement techniques
Physical properties
TDR
介电常数测量
传输线理论
信号传播
建模
校准参数
非均匀传输线
非递归算法
time domain reflectometry
transmission line measurements
dielectric measurements
transmission line theory
spectroscopy
soil measurements
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Summary:Time domain reflectometry（TDR） is a measurement technique based upon transmission line theory. The solutions of transmission line equations are reformulated in terms of independent physical properties, instead of coupled per-unit-length circuit parameters. The complete TDR response is effectively modeled by a non-uniform transmission line using the non-recursive ABCD matrix approach. Approaches to calibrate line parameters and perform TDR measurements based upon such model are introduced with an example on dielectric spectroscopy. TDR modeling in terms of decoupled physical parameters and non-recursive algorithm allows more convenient calibration of line parameters and facilitates interpretation of TDR measurements.
Bibliography:Time domain reflectometry（TDR） is a measurement technique based upon transmission line theory. The solutions of transmission line equations are reformulated in terms of independent physical properties, instead of coupled per-unit-length circuit parameters. The complete TDR response is effectively modeled by a non-uniform transmission line using the non-recursive ABCD matrix approach. Approaches to calibrate line parameters and perform TDR measurements based upon such model are introduced with an example on dielectric spectroscopy. TDR modeling in terms of decoupled physical parameters and non-recursive algorithm allows more convenient calibration of line parameters and facilitates interpretation of TDR measurements.
time domain reflectometry, transmission line theory, transmission line measurements, dielectric measurements, spectroscopy, soll measurements.
42-1788/P
ISSN:1674-487X
1867-111X
DOI:10.1007/s12583-015-0599-7