FN Archimer Export Format
PT J
TI Development of a Resonant Microwave Sensor for Sediment Density Characterization
BT 
AF Mansour, Rassoul
   Rioual, S.
   Lescop, B.
   Talbot, P.
   Abboud, M.
   Farah, W.
   Tanné, G.
AS 1:1,2,3;2:2;3:2;4:2;5:3;6:3;7:2;
FF 1:PDG-REM-GM-LAD;2:;3:;4:;5:;6:;7:;
C1 IFREMER, REM-GM-LAD, 29280 Plouzane, France
   Univ Brest, Lab-STICC, CNRS, UMR 6285, F-29200 Brest, France
   UEGP, Faculté des Sciences, Université Saint Joseph, BP 17-5208 Mar Mikhael, Beyrouth 1104 2020, Liban
C2 IFREMER, FRANCE
   UBO, FRANCE
   UNIV ST JOSEPH, LEBANON
SI BREST
SE PDG-REM-GM-LAD
IN WOS Ifremer UPR
   DOAJ
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 0.99
TC 6
UR https://archimer.ifremer.fr/doc/00610/72167/70939.pdf
LA English
DT Article
DE ;resonant sensor;water content;dielectric characterization;microwave;antenna;sediments
AB In this study, a sensor based on the development of a planar antenna immersed in sediments dedicated to water content monitoring in this type of material is proposed and experimentally validated. It is produced by a conventional Printed Circuit Board (PCB) manufacturing process on a double-sided metalized FR4 substrate. The sensitivity of the sensor is ensured by the variation of the real part of the complex dielectric permittivity of sediments with water content at around 1 GHz. As shown, in this frequency range, electrode polarization and Maxwell–Wagner polarization e ects become negligible, leading to only a bulk water polarization sensitivity. The sensor operates in the reflection mode by monitoring the variation of the resonant frequency as a function of the sediment density through the S11 reflection measurements. An experimental sensitivity of 820 MHz.g..1.cm3 was achieved. Despite the simplification of data interpretation at the considered frequency, the influence of ionic species such as NaCl in sediments on the real part of the relative complex dielectric permittivity is highlighted. This demonstrates the importance of considering a second parameter such as the S11 level at low frequency or the electrical conductivity to extract the density from the frequency measurements. 
PY 2020
PD FEB
SO Sensors
SN 1424-8220
PU MDPI AG
VL 20
IS 4
UT 000522448600109
DI 10.3390/s20041058
ID 72167
ER

EF