Identification of odors using a sensor array with kinetic working temperature and Fourier spectrum analysis
Tóm tắt
A method for the identification of odors using a dynamically driven sensor array has been developed, in which transient responses of the sensor array were used to recognize target odors. Fourier transformation was used to transform the transient response curves of the sensor array into Fourier spectra, and patterns composed of some of the magnitudes in the spectra were used in the pattern recognition to identify the odors. Identification of odors was performed using this method with three kinds of 10% ethanol solution of tea extract and three kinds of Japanese soy sauce. In consequence, the sample odors could be correctly recognized without any pretreatment device for separation of minor components from the main component.
Từ khóa
#Sensor arrays #Temperature sensors #Kinetic theory #Acoustic sensors #Gas detectors #Ethanol #Sensor systems #Electronic noses #Fourier transforms #Transient responseTài liệu tham khảo
heilig, 1996, gas identification by means of pulsed temperature operated single sno<formula><tex>$_2$</tex></formula> based thick film sensors, Conf Proc Eurosens $X$, 9, 1027
al-khalifa, 1997, characterization of a thermal wave microsensor for the intelligent analysis of atmospheric gases, Sensors and Their Applications VIII, 89
10.1016/S0925-4005(97)80196-7
10.1016/S0925-4005(99)00068-4
10.1016/0925-4005(95)85171-2
10.1016/S0925-4005(01)00651-7
10.1021/ac50045a024
10.1021/la00078a054
10.1016/0925-4005(91)80185-M
persand, 1991, Intelligent Instruments & Computers, 147
10.1016/0925-4005(94)01592-6
10.1016/0925-4005(94)87095-0
10.1109/ULTSYM.1988.49450
10.1016/0925-4005(93)80030-F
10.1038/299352a0