Outputs of Plural Tin Oxide Gas Sensors for Compound Gaseous Indoor-Air Pollutants

Takashi Oyabu, Takeshi Onodera, Shigeki Hirobayashi, Haruhiko Kimura

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Output patterns of four types of tin oxide gas sensors for compound gaseous indoor air-pollutants are inves tigated. The sensor patterns prefer higher gas-sensitivity characteristics when there is a compound gaseous pollutant including two kinds of gases. After the experimental system detects a lower gas-sensitivity pattern in a residence, it can detect a higher one. The reverse is impossible. Three NDVs (NDVA, NDVC, NDVN) characteristics are also adopted to increase the reliability of the system. NDVA characterisitic decreases for a few minutes and gets back to an original state or under the state when an alcoholic gas generates. The system can identify whether the alcoholic gas is generating or not in an indoor environment by using NDV characteristics with high reliability.

Original languageEnglish
Pages (from-to)572-577
Number of pages6
JournalIEEJ Transactions on Sensors and Micromachines
Issue number12
Publication statusPublished - 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Electrical and Electronic Engineering


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