Design of a noninvasive diabetes detector based on acetone recognition

This paper presents the design project of a new type of diabetes detector system, consisting the unique gas sensor, the container, the conditioning circuit as well as the computer GUI developed by CVI. Noninvasiveness and the basis on acetone recognition are the most apparent characteristics of the system. The gas sample of the patients are collected and led to the gas container before reacting with the sensor and finally put out data on the screen at regular intervals. A controlled experiment is conducted to verify the precision of the PID sensor compared with the existing GC-MS method in the process of determining acetone concentration. The experiment shows that the system is effective and convenient in detecting low concentrated acetone exhaled by the patients, and an innovative product inspired by this may be prospective to be put into use in certain areas.