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Portable electronic nose system utilizing single gas sensor array fabricated by Si bulk micromachining

  • Yoonseok Yang
  • , Seung Chul Ha
  • , Yong Shin Kim*
  • *Corresponding author for this work
  • Electronics and Telecommunications Research Institute
  • Chungbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

A portable electronic nose system has been developed utilizing a single 16-channel sensor array chip. It was fabricated by Si bulk micromachining and equipped with the sensing materials of carbon-black-polymer composites. This system consists of a small sensing module containing the sensor array chip, signal processing circuits and vapor delivery components on a printed circuit board, and a laptop personal computer equipped with data acquisition and pattern recognition programs. Experimental results show that the sensor array chip can measure and recognize volatile organic compounds even by simple principle component analysis. In addition, our portable electronic nose system has successfully classified real complex samples, i.e., brandy and whiskey.

Original languageEnglish
Pages (from-to)77-85
Number of pages9
JournalSensors and Materials
Volume17
Issue number2
StatePublished - 2005

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • Carbon-black-polymer composite
  • Electronic nose
  • Gas sensor array
  • Pattern recognition
  • Si bulk micromachining

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