Sensing film characterization of mixed liquid films for odor sensing system

Since odor sensing system is required in many fields. we have developed the system using QCM (Quartz Crystal Microbalance) sensor array and neural-net work pattern recognition. In the present study, the mixed sensing films of two kinds of liquid-phase materials were characterized. As a result, it was found that the variety of sensing films were obtained by mixing two kinds of liquid-phase materials. The relative remnant of sensing film after repea ted exposures was examined, and mixed films of two kinds of liquid-phase ma terials were found stable for the sensing materials.