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Title:Portable biomedical measurement devices: MoboSens and impedance sensing systems
Author(s):Zhang, Han
Advisor(s):Liu, Gang Logan
Department / Program:Electrical & Computer Eng
Discipline:Electrical & Computer Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
System-level circuit design
Impedance sensing
Electrochemical sensing
Abstract:Human health has become a very important topic as society pays more attention to the people’s quality of life. Therefore, wearable devices with the capability of monitoring various human health indexes and detecting environmental pollution metrics are in great demand. In this thesis, two methods will be discussed in detail. One method that has been developed to perform the tests is called electrochemical sensing, ‘MoboSens’. It uses a smartphone as its sensing platform with an integrated plug-and-play microelectronic ionic sensor, and the whole package is connected through the audio jack on the smartphone. It is used to measure nitrate concentration in water portably. The other method is called impedance sensing measurement. A portable device is used as the platform to combine with the impedance-based sensing technologies. It is designed to detect some species of Escherichia coli and Salmonella bacteria. The work discusses the system-level circuit design for the prototypes of both methods. The testing results from these two sensing methods have been confirmed with other existing analytical testing methods.
Issue Date:2016-09-16
Rights Information:Copyright 2016 Han Zhang
Date Available in IDEALS:2017-03-01
Date Deposited:2016-12

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