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Design and Evaluation of a Mobile Sensing Platform for Water Conductivity

  • Chamod Weerasinghe
  • , Lokesh P. Padhye
  • , Suranga Nanayakkaraac
  • The University of Auckland
  • National University of Singapore

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Electrical conductivity (EC) is one of the many water quality parameters that provides an indication of total ionic contaminants in water. This is traditionally measured with either lab-based equipment or battery-powered portable meters. These tools are expensive and require expertise to use, hindering their widespread adoption. We aim to address this challenge based on a custom-made electrode and processing unit that can be plugged into a smartphone via the USB port. In this paper, we present the design, development and evaluation of our mobile sensing system that is low cost (< 35 USD), easy-to-use (SUS score of 89.3) and accurate. Our initial testing suggests that the sensor is able to measure EC with < 3% root mean squared percentage error compared to a lab-based instrument. We believe our approach will empower a large group of people to contribute to water quality measurements.

Original languageEnglish
Title of host publication2022 IEEE Sensors, SENSORS 2022 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665484640
DOIs
StatePublished - 2022
Event2022 IEEE Sensors Conference, SENSORS 2022 - Dallas, United States
Duration: Oct 30 2022Nov 2 2022

Publication series

NameProceedings of IEEE Sensors
Volume2022-October

Conference

Conference2022 IEEE Sensors Conference, SENSORS 2022
Country/TerritoryUnited States
CityDallas
Period10/30/2211/2/22

Keywords

  • Citizen Science
  • Eletrochemical Sensor
  • Mobile Sensing
  • Water Quality

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