Sensor Array for a Variety of Gases

FIGURE 1.11 Schematic diagram of the portable electronic nose system. (Reprinted from Sens. Actuators B, 66, Hong H.-K., Kwon C. H., Kim S.-R., Ynn D. H., Lee K., and Sung Y. K., Portable electronic nose system with gas sensor array and artificial neural network, 49-52, 2000, with permission from Elsevier.) 

FIGURE 1.12 Chip assembled on standard TO-8 package. (Reprinted from Sens. Actuators B, 58, Horrillo M.C., Sayago L, Ares L., Rodrigo J., Gntierrez J., Gotz A., Gracia I., Fonseca L., Cane C., and Lora-Tamayo E., Detection of low NO2 concentrations with low power micromachined tin oxide gas sensors, 325-329, 1999, with permission from Elsevier.) 

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