Smart PCS Based System for Oxygen Content Measurement

This paper presents the performance analysis of\udsmart PCS based system for an accurate oxygen content\udmeasurement in the aqueous electrolyte solution. The system\udintends to measure the photo catalytic activity of the PCS which\udis sensitive to O2 by integrating the software and hardware\uddesign technique for more accurate results. The threshold\udvoltage of the PCS changes due to photo catalysis process\udcausing fluctuations in the PCS readout which is sensed by the\udmicrocontroller via an inbuilt 10 bit A/D converter. The\uddigitized signal is processed and converted into corresponding\udvalue of O2 content. The proposed digital system is fast as\udcompared to conventional flow injection analysis which is\udtiresome and time consuming job. The approach for this system\udrelies on the fast operation of PCS which operates under sub\udthreshold conditions and reduced computation time. The system\udis more user friendly and the outcomes of simulation are fairly\udin agreement with the theoretical estimations. The system is\udhighly favourable for water quality monitoring applications due\udto reduced response time