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Carbon Nanotubes Spray-On Film Sensors for Structural Health Monitoring

Inpil Kang, Woon Kyung Baek, Jongwon Lee, Mark J. Schulz

Abstract


This paper introduces a new sensor based on carbon nanotubes for structural health monitoring applications. The carbon nanotube sensor is a spray-on polymer film sensor that is bonded or deposited onto a structure. The sensor measures multiple physical properties, including cracking, corrosion, strains, and the number of stress cycles simultaneously. The electrochemical impedance (resistance and capacitance) of the sensor changes due to deterioration of the structure where the sensor is located. CNT spray-on film sensor has potential to improve structural performance and self-test and monitoring their condition.

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DOI: http://dx.doi.org/10.21535%2FProICIUS.2007.v3.617

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