Designing and Development of a Handheld Portable Electrochemical Analyzer for Flexible Hybrid Electronics

This paper is focused on the design and fabrication of a fully functional handheld and portable electrochemical analyzer for flexible hybrid electronics applications. A three-electrode sensor was fabricated from copper tape using laser etching process. The sensor was connected to a custom designed and programmed printed circuit board to measure the sensor response through electrochemical techniques for a large variation of chemical ion concentrations. The electronic circuit can perform cyclic voltammogram and chronoamperogram tests. After calibration, the measurements can be wirelessly transmitted to a smartphone and enables the user to view post analysis results including the analyte concentrations. The system is power efficient running off a 3.7V lithium polymer battery pulling ~2.8 mA.