A Portable Electronic Nose Based on Bio-Chemical Surface Acoustic Wave (SAW) Array with Multiplexed Oscillator and Readout Electronics

摘要

We have developed a new portable electronic nose based on a SAW sensor array and its readout electronics. The SAW array is based on 2x2 non-continuously working oscillators for sensors coated with different polymer/mesoporous carbon composite materials. Signals of the SAW array can be obtained by a readout PCB and a microprocessor. Experiments indicate good results for this portable system to perform gas detection and recogntion applications.