Goffin, B. D., & Burden, L. I. (2023, June), Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging  Paper presented at 2023 ASEE Annual Conference & Exposition, Baltimore , Maryland. 10.18260/1-2--42903

\bibitem{asee_peer_42903}
  Goffin, B. D., \& Burden, L. I. (2023, June), \emph{Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging}
  Paper presented at 2023 ASEE Annual Conference \& Exposition, Baltimore , Maryland.
  10.18260/1-2--42903

Benjamin D. Goffin and Lindsay Ivey Burden.  "Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging".  2023 ASEE Annual Conference & Exposition, Baltimore , Maryland, 2023, June.  ASEE Conferences, 2023.  https://peer.asee.org/42903 Internet.  21 Jun, 2024

\bibitem{asee_peer_42903}
  Benjamin D. Goffin and Lindsay Ivey Burden.
  "Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging".
  \emph{2023 ASEE Annual Conference \& Exposition, Baltimore , Maryland, 2023, June}.
  ASEE Conferences, 2023.
  https://peer.asee.org/42903 Internet.  21 Jun, 2024

@INPROCEEDINGS{asee_peer_42903
author = "Benjamin D. Goffin and Lindsay Ivey Burden"
title = "Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging"
booktitle = "2023 ASEE Annual Conference \& Exposition"
year = "2023"
month = "June"
address = "Baltimore , Maryland"
publisher = "ASEE Conferences"
note = {https://peer.asee.org/42903}
number = {10.18260/1-2--42903}
}

TY  - CPAPER
AB  - Electrical Resistivity (ER) surveys have been used to investigate soils for over a century but a “black box” traditionally surrounds commercial ER equipment. This work proposes the design of an intuitive, low-cost ER meter for hands-on geotechnical education. The prototype leverages $40 worth of integrated-circuit modules and less than 80 lines of open-source commands to inject a current into the ground and measure the site’s potential response. The device was validated against test circuits with ohmic values ranging over 4 orders of magnitude and yielded marginal mean absolute percentage error less than 3%. The proposed ER meter was thereafter implemented in a tabletop laboratory setting to perform Constant Separation Traversing (CST) surveys using Wenner array along parallel profiles. The resulting CST matrix showed values of apparent resistivity consistently in agreement with the modeled earth stratum. Over the extent of a buried Styrofoam feature, the device generated measurements up to 70% higher and identified clear lateral disruptions in subsurface conditions. Overall, the proposed ER meter proved to be a tool well suited for tabletop experiments and capable of characterizing complex test beds. Its open-science design addresses the issues of the “black box” surrounding proprietary equipment and makes it accessible to the community at large for a fraction of the cost of commercial units. With practical applications for hands-on teaching and interactive learning, this work makes geotechnical laboratory education more engaging and relevant. As such, it has the potential to modernize STEM curricula and advance the fundamental understanding at the intersection of technology and environment. 
AU  - Benjamin D. Goffin
AU  - Lindsay Ivey Burden
CY  - Baltimore , Maryland
DA  - 2023/06/25
PB  - ASEE Conferences
TI  - Design and Application of an Open-Science Electrical Resistivity Meter to Make Geotechnical Laboratory Education More Relevant and Engaging
UR  - https://peer.asee.org/42903
DO  - 10.18260/1-2--42903
ER  -