Water quality sensors - from transducer technology to environmental application

The article describes the full chain of technical activities from transducer design, method of readout implementation, data transfer, all the way to environment monitoring pilot study. Silicon-based electrical conductivity EC sensor with a radio solution was utilized to study the water quality of th...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2023-01, Vol.72, p.1-1
Main Authors: Bembnowicz, Pawel, Brom-Verheyden, Greja, Boonen, Thijl, Philips, Nele
Format: Article
Language:English
Subjects:
Conductivity measurement
Data transfer (computers)
Electrical resistivity
electrochemical electrodes
electrolysis
impedance measurement
Monitoring
Pilot projects
radio communication
Radio transmission
Remote sensors
River banks
Sensors
Surface water
Transducers
water pollution
Water quality
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Summary:The article describes the full chain of technical activities from transducer design, method of readout implementation, data transfer, all the way to environment monitoring pilot study. Silicon-based electrical conductivity EC sensor with a radio solution was utilized to study the water quality of the Yser river, Belgium. A voltage controlled excitation reading out method suitable for four-electrode EC transducers is described and implemented. The measuring electronics were adequately encapsulated and equipped with a proprietary base station for wireless data transfer. Both the transducer and the constructed sensor probe were evaluated in a lab to prove the required performance prior to deployment. The small LoRaWAN network of devices was installed for a nearly one-year period at the river bank. A high ratio of successful radio transmission was achieved from the remote site. Sensor probe data from one location shows representative high correlation with the reference measurements. The described solutions, and their deployment, provided a prospect for achieving precise, online, surface water quality monitoring systems. The data from the pilot study are expected to bring insight into the dynamics of the water system and influence of the tides and lock management on its water quality.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2023.3284052