Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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A Study on Sensing Characteristics of Carbon Nanotube Smart Composite Nano Sensors Based on Electrical Impedance Measurement

탄소나노튜브 스마트 복합소재의 전기적 임피던스 변화를 이용한 나노센서의 센싱 특성 연구

  • 강인필 (부경대학교 기계공학부)
  • Published : 2009.02.28
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Abstract

To address the need for new intelligent sensing, this paper introduces nano sensors made of carbon nanotube (CNT) composites and presents their preliminary experiments. Having smart material properties such as piezoresistivity, chemical and bio selectivity, the nano composite can be used as smart electrodes of the nano sensors. The nano composite sensor can detect structural deterioration, chemical contamination and bio signal by means of its impedance measurement (resistance and capacitance). For a structural application, the change of impedance shows specific patterns depending on the structural deterioration and this characteristic is available for an in-situ multi-functional sensor, which can simultaneously detect multi symptoms of the structure. This study is anticipated to develop a new nano sensor detecting multiple symptoms in structural, chemical and bio applications with simple electric circuits.

Keywords

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