TY - GEN
T1 - Salt Content Detection Using a Microwave Sensor
AU - Bao, Xiue
AU - Wang, Zeyu
AU - Bao, Juncheng
AU - Gugliandolo, Giovanni
AU - Yuan, Haoyun
AU - Zhao, Zhibo
AU - Li, Jinkai
AU - Donato, Nicola
AU - Crupi, Giovanni
AU - Nauwelaers, Bart
AU - Schreurs, Dominique
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A microwave interdigital-electrode (IDE) sensor is used to detect the salt content in saline solutions. As there is electrode polarization when measuring a liquid that contains lots of ions, and considering its dispersion property at microwaves, frequency dependent complex conductivity is investigated in the present study. A reasonable equivalent circuit of the liquid loaded IDE sensor is provided, which is further used to deduce the characterization theory. The theory demonstrates that the measured scattering (S-)parameters can be accurately translated to the complex conductivity of the liquid under detection. The characterization theory is validated with finite-element simulation method. The measurements on some saline solutions demonstrate that the IDE method has the capability of detecting the salt content in liquids in a non-invasive and contactless way. This technique is targeted for a fast pollution detection or characterization of sea water.
AB - A microwave interdigital-electrode (IDE) sensor is used to detect the salt content in saline solutions. As there is electrode polarization when measuring a liquid that contains lots of ions, and considering its dispersion property at microwaves, frequency dependent complex conductivity is investigated in the present study. A reasonable equivalent circuit of the liquid loaded IDE sensor is provided, which is further used to deduce the characterization theory. The theory demonstrates that the measured scattering (S-)parameters can be accurately translated to the complex conductivity of the liquid under detection. The characterization theory is validated with finite-element simulation method. The measurements on some saline solutions demonstrate that the IDE method has the capability of detecting the salt content in liquids in a non-invasive and contactless way. This technique is targeted for a fast pollution detection or characterization of sea water.
KW - Complex conductivity
KW - interdigital electrodes
KW - microfluidic technique
KW - microwave sensing
KW - saline solutions
UR - http://www.scopus.com/inward/record.url?scp=85143684572&partnerID=8YFLogxK
U2 - 10.1109/MetroSea55331.2022.9950949
DO - 10.1109/MetroSea55331.2022.9950949
M3 - Conference contribution
AN - SCOPUS:85143684572
T3 - 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022 - Proceedings
SP - 479
EP - 483
BT - 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022
Y2 - 3 October 2022 through 5 October 2022
ER -
