Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Fabrication and characterization of a small-sized gas identification instrument for detecting LPG/LNG and CO gases

  • Lee Kyu-Chung (Department of Information Technology, Sungkyul University) ;
  • Hur Chang-Wu (Department of Information, Electronics and Imaging Engineering, Mokwon University)
  • Published : 2006.03.01
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Abstract

A small-sized gas identification system has been fabricated and characterized using an integrated gas sensor array and artificial neural-network. The sensor array consists of four thick-film oxide semiconductor gas sensors whose sensing layers are $In_{2}O_{3}-Sb_{2}O_{5}-Pd-doped\;SnO_2$ + Pd-coated layer, $La_{2}O_{5}-PdCl_{2}-doped\;SnO_2,\;WO_{3}-doped\;SnO_{2}$ + Pt-coated layer and $ThO_{2}-V_{2}O_{5}-PdCl_{2}\;doped\;SnO_{2}$. The small-sized gas identification instrument is composed of a GMS 81504 containing an internal ROM (4k bytes), a RAM (128 bytes) and four-channel AD converter as MPU, LEDs for displaying alarm conditions for three gases (liquefied petroleum gas: LPG, liquefied natural gas: LNG and carbon monoxide: CO) and interface circuits for them. The instrument has been used to identify alarm conditions for three gases among the real circumstances and the identification has been successfully demonstrated.

Keywords

References

  1. K. Persaud and G. dodd, Analysis of discrimination mechanisms in the mammalian olfactory system using a model nose, Nature, 299, 1982, pp. 352-355 https://doi.org/10.1038/299352a0
  2. J. W. Gardner, Detection of vapors and odors from a multisensor array using pattern recognition, Sensors and Actuators B, 1991, pp. 109-115 https://doi.org/10.1016/0925-4005(91)80185-M
  3. T. Nakamoto, H. Tagaki, S. Utsimi and T. Moriizumi, Gas/odor identification by semiconductor gas sensor array and an analog artificial neural-network circuits, Sensors and Actuators B, 8, 1992. pp. 181-186 https://doi.org/10.1016/0925-4005(92)80178-Z
  4. H. K. Hong, H. W. Shin, H. S. Park, D. H. Yun, C. H. Kwon, K. Lee, S. T. Kim and T. Moriizumi, Gas identification using micro gas sensor array and neural network pattern recognition, Transducers '95/Eurosensors IX, 2, Stockholm, Sweden, June 25-29, 1995, pp. 687-690
  5. H. K. Hong, H. W. Shin, H. S. Park, D. H. Yun, C. H. Kwon, K. Lee and T. Moriizumi, Electronic nose with micro gas sensor array, Sensors and Actuators B, 35-36, 1996, pp. 338-341
  6. J. W. Gardner and P. N. Bartlett, Monitoring of fish freshness using tin oxide sensors, Sensors and Sensory Systems for an Electronic Nose, Kluwer Academic Publishers, 1992, pp. 257-272
  7. H. Nanto, K. Kondo, M. Habara, Y. Douguchi, R. I. Waite and H. Nakazumi, Identification of aroma from alcohols using a Japanese-lacquer-film-coated quartz resonator gas sensor in conjucntion with pattern recognition analysis, Sensors and Actuators B, 35-36, 1996, pp. 183-186
  8. T. Nakamoto, S. Sasaki, A. Fukuda and T. Moriizumi, Selection method of sensing membranes in odor-sensing system, Sensors and Materials, 4, 1992, pp. 111-119
  9. C. H. Kwon, H. K. Hong, D. H. Yun, K. Lee, S. T. Kim, Y. H. Roh and B. H. Lee, Thick film zinc-oxide gas sensor for the control of lean air-to-fuel ratio in domestic combustion systems, Sensors and Actuators B, 25, 1995, pp. 610-613 https://doi.org/10.1016/0925-4005(95)85134-8
  10. K. Lee, K.-R. Ryu and C.-W. Hur, Thick-film ammonia gas sensor with high sensitivity and excellent selectivity, International Journal of Marine Information and communication Sciences, Vol. 2, No. 1, pp. 22-25, March 2004