Graduation Year
2025
Document Type
Thesis
Degree
M.S.E.E.
Degree Name
MS in Electrical Engineering (M.S.E.E.)
Degree Granting Department
Electrical Engineering
Major Professor
Arash Takshi, Ph.D.
Committee Member
Ehsan Sheybani, Ph.D.
Committee Member
Alexandro Castellanos, Ph.D.
Keywords
Communication Protocol, Gas Sensors, Hardware Design, Volatile Organic Compounds
Abstract
Electronic noses (e-noses) are a subject of great research. They are useful in multiple platforms and serve a great purpose in both studies and safety. This thesis presents a portable, modular e-nose platform that spans the full pipeline from sensing to visualization, with emphasis on scalability, repeatability, and straightforward integration. The hardware is organized as swappable sensor modules each hosting multiple commercial sensors and local signal-conditioning networked to a master microcontroller via structured communication protocols. High-resolution acquisition, time alignment, and efficient streaming to a host enable reliable logging and analysis. A controlled exposure chamber and a repeatable sampling protocol (baseline-exposure-purge cycles) provide consistent operating conditions for comparative evaluation across gases and concentrations.
The platform’s modularity is mirrored in software: the data path, synchronization, and feature-extraction routines are designed to adapt cleanly as sensor configurations change. Real time data logging and plotting reveal distinct response patterns and trends that support classification and decision-making.
Scholar Commons Citation
Rudraraju, Kaushika, "Design and Implementation of a Cross-Platform, Modular Electronic-Nose System" (2025). USF Tampa Graduate Theses and Dissertations.
https://digitalcommons.usf.edu/etd/11063
