The measurements of the time domain reflectometry sTDRd signal propagating along a coaxial probe, filled with dry mixtures of glass beads and magnetite, are analyzed for deriving the attenuation factor a and the bandwidth. Samples with different percentages s5%–25%d of magnetite are considered. The a values are obtained by two different methods: sid wave amplitude at the second reflection, siid electromagnetic parameters and widths of the passing bands. The two methods provide consistent a values within the experimental uncertainties. The agreement supports the possibility of measuring the attenuation factor from the second TDR reflection, for anhydrous samples similar to the investigated mixtures.
Mattei, E., A. A., D.S., Di, M., Pettinelli, E., AND G., V. (2005). Time Domain Reflectometry of Glass Beads/Magnetite Mixtures: a Time and Frequency Domain Study. APPLIED PHYSICS LETTERS, 86 [10.1063/1.1935029].
Time Domain Reflectometry of Glass Beads/Magnetite Mixtures: a Time and Frequency Domain Study
MATTEI, ELISABETTA;PETTINELLI, Elena;
2005-01-01
Abstract
The measurements of the time domain reflectometry sTDRd signal propagating along a coaxial probe, filled with dry mixtures of glass beads and magnetite, are analyzed for deriving the attenuation factor a and the bandwidth. Samples with different percentages s5%–25%d of magnetite are considered. The a values are obtained by two different methods: sid wave amplitude at the second reflection, siid electromagnetic parameters and widths of the passing bands. The two methods provide consistent a values within the experimental uncertainties. The agreement supports the possibility of measuring the attenuation factor from the second TDR reflection, for anhydrous samples similar to the investigated mixtures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
