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Electrical resistivity as a measure of change of state in substrates: Design, development and validation of a microprocessor-based system.

Smart structures are relevant and significant because of their relevance to phenomena such as hazard mitigation, structural health monitoring and energy saving. Electrical resistance could potentially serve as an indicator of structural well-being or damage in the structure. To this end, the development of a microprocessor-based automated resistance measurement system with customized GUI is desired. In this research, a nodal electrical resistance acquisition circuit (NERAC) system was designed. The system hardware interfaces to a laptop, which houses a customized GUI developed using DAQFactory software. Resistance/impedance was measured using DC/AC methods with four-point probes technique, on three substrates. Baseline reading before damage was noted and compared with the resistance measured after damage. The device was calibrated and validated on three different substrates. Resistance measurements were taken from PVDF samples, composite panels and smart concrete. Results conformed to previous work done on these substrates, validating the effective working of the NERAC device.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc12149
Date12 1900
CreatorsLe, Dong D.
ContributorsVaidyanathan, Vijay, Hayes, Robert B., D'Souza, Nandika, Chung, Jaycee H.
PublisherUniversity of North Texas
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
FormatText
RightsPublic, Copyright, Le, Dong D., Copyright is held by the author, unless otherwise noted. All rights reserved.

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