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Development on Impedance Measurement System For Electrochemical Impedance Spectroscopy

  • Author / Creator
    Li, Jiajun
  • Electrochemical impedance spectroscopy (EIS) has been used in various applications, such as metal corrosion monitoring. However, many conventional corrosion monitoring setups are bulky and inconvenient for in-situ testing. Reducing the size of the whole corrosion monitoring system is one of the purposes of this thesis. We utilized EIS to design an impedance measurement system, capable of performing in-situ EIS analysis. Experiments verified the sensor's accuracy, and the results showed that the sensor performed similarly to a bench-top EIS machine when we tested on circuit models. Furthermore, we used the proposed system to monitor a metal corrosion experiment and performed EIS. The result showed that the proposed system is able to obtain the sample's impedance spectroscopy, which could help researchers test its corrosion severity on a metallic sample in-situ. Compared to other bulky conventional setups, our device eliminates the design complexity while still showing insights into the corrosion reaction. Also, we briefly introduce the ongoing work: the impedance measurement system for the COVID-19 project. The purpose of this work is to help with the EIS analysis with the customized measurement system. Compared to the corrosion one, the new system has several changes. We introduce these changes and show the testing result.

  • Subjects / Keywords
  • Graduation date
    Fall 2021
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/r3-m7aq-x330
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.