University of Illinois Urbana-Champaign

A low-cost, portable, web-based impedance spectroscope for agricultural applications

Yoo, Seokchan

Content Files
YOO-THESIS-2017.pdf

Permalink

https://hdl.handle.net/2142/97312

Description

Title
A low-cost, portable, web-based impedance spectroscope for agricultural applications
Author(s)
Yoo, Seokchan
Issue Date
2017-04-27
Director of Research (if dissertation) or Advisor (if thesis)
Bhalerao, Kaustubh
Committee Member(s)
  • Grift, Tony E.
  • Knox, Robert
Department of Study
Engineering Administration
Discipline
Agricultural & Biological Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Date of Ingest
2017-08-10T19:14:46Z
Keyword(s)
  • Electrical impedance spectroscopy (EIS)
  • Biosensor
  • Swine reproduction management
  • AD5933
Abstract
Electrical impedance spectroscopy (EIS) is an electrochemical characterization technique widely exploited in the field of chemistry, material science, and biology. EIS characterizes the dynamics of fixed and mobile charge carriers at the electrode-sample interface. It has proved useful in the characterization of electrochemical properties of diverse materials, including electrolytic media and biological tissues. Traditionally, an EIS spectroscope consists of a bulky and expensive electronic system, and handling this equipment can be difficult without proper training. These limitations forestall EIS spectroscopy to be employed for in-field and mobile agricultural applications. To overcome these issues, a low-cost, mobile, web-based EIS spectroscopy device was developed based on the AD5933, a high precision impedance measurement system-on-chip. A user-friendly web application was programmed to promote ease of use and operational simplicity. Application of the developed spectroscope as demonstrated through four different experiments; measuring standard RC circuits, monitoring copper corrosion, detecting adulterated milk and characterizing the estrous cycle of sows. Based on results from these experiments, it was found that the spectroscope is capable of producing accurate data as well as capturing different electrochemical characteristics for agricultural applications. Most importantly, the spectroscope shows its potential to be used as a decision-making tool to optimize artificial insemination in swine breeding operations.
Graduation Semester
2017-05
Type of Resource
text
Permalink
http://hdl.handle.net/2142/97312
Copyright and License Information
Copyright 2017 Seokchan Yoo

Owning Collections

Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois
Dissertations and Theses - Agricultural and Biological Engineering