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Development of IOT-based low-cost MEMS pressure sensor for groundwater level monitoring

Version 2 2024-06-02, 23:22
Version 1 2023-08-24, 05:28
journal contribution
posted on 2024-06-02, 23:22 authored by Milad Barzegar Touchahi, S Blanks, S Gharehdash, Wendy TimmsWendy Timms
Abstract Groundwater level monitoring is critical to the protection and management of groundwater resources. Properly designed and executed instrumentation can play an important role in increasing the quality and reliability of collected data and reducing total monitoring costs. The efficiency of the instrumentation depends mainly on the accuracy and reliability of the installed sensors. This study presents the testing and application of a cost-effective pressure sensor (0–689 kPa range) for water level monitoring based on microelectromechanical system (MEMS) technology and the internet of things concept. The sensor performance, in terms of accuracy, precision, repeatability, and temperature, was investigated in laboratory columns (with constant water level, increasing and decreasing water levels at various rates) and in situ conditions in an observation bore (with natural groundwater level fluctuations). The results show that the MEMS sensor is capable of providing a reliable and adequate monitoring scheme with an accuracy of 0.31% full scale (FS) (2.13 kPa).

History

Journal

Measurement Science and Technology

Volume

34

Article number

ARTN 115103

Pagination

115103-115103

Location

Bristol, Eng.

ISSN

0957-0233

eISSN

1361-6501

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

11

Publisher

IOP Publishing Ltd