Development of Urine Conductivity Sensing System for Measurement and Data Collection

This paper presents the design of an analog front-end of an electrochemical conductivity sensor. This forms part of a multi-parameter sensing device for use in the detection and diagnosis of urolithiasis in its preliminary stages. The proposed conductivity bio-sensor is used for measuring the concentration of total dissolved salts in urine. It will be combined with FET-based potentiometric sensors for measuring Ca2+ and pH, and an amperometric sensor for measuring uric acid into an integrated lab-on-a-chip point-of-care device.