Title :
Odor preconcentrator using SAW device and QCM in liquid phase for odor measurement
Author :
Takamichi Nakamoto;Takayoshi Inuma
Author_Institution :
Precision and Intelligence Laboratiry, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
Abstract :
A preconcentrator is a device to enhance the odor concentration so that a sensing device can easily detect odorant. Although we propose the preconcentrator using a SAW atomizer, it has a problem of humidity influence. In the present study, we aimed to overcome this problem using a QCM (Quartz Crystal Microbalance) sensor immersed in the water. Since the sensor has been already immersed in the water, it does not encounter the influence of the humidity in the ambient air. Triethylamine with the concentration comparable to human threshold level was detectable in our experiment.
Keywords :
"Surface acoustic wave devices","Resonant frequency","Liquids","Frequency measurement","Humidity","Radio frequency","Admittance"
Conference_Titel :
Multisensor Fusion and Integration for Intelligent Systems (MFI), 2015 IEEE International Conference on
DOI :
10.1109/MFI.2015.7295808
