Analysis on continuous wearable device for blood glucose detection using GSR sensor

Abstract

This paper presents the development of a non-invasive approach to detect the blood glucose level using a galvanic skin response (GSR) technique. Previously, GSR had been used in many applications such as lie detector and emotion monitoring. GSR application on blood glucose reading has shown a promising potential detecting the blood glucose reading. The experimental study has been conducted to analyses the conductivity of the GSR sensor in order to find the correlation between skin conductance and the blood glucose level. The GSR sensor is used to measure the skin conductivity between two electrodes attached to the two fingers of the same hand and the electrodes are connected to the analogue input of the microcontroller to process the readings and display it. While taking a reading, the skin temperature and movement variation were minimized. The reading of GSR is taken on several samples throughout the day and compared with the readings taken by the conventional finger pricking method. From the result, it shows a significant correlation between blood glucose level and the GSR readings which is inversely proportional to each other with the correlation factor of 0.670.