Biphasic DC measurement approach for enhanced measurement stability and multi-channel sampling of self-sensing multi-functional structural materials doped with carbon-based additives

dc.contributor.author Downey, Austin
dc.contributor.author D'Alessandro, Antonella
dc.contributor.author Ubertini, Filippo
dc.contributor.author Laflamme, Simon
dc.contributor.author Geiger, Randall
dc.contributor.department Mechanical Engineering
dc.contributor.department Civil, Construction and Environmental Engineering
dc.contributor.department Electrical and Computer Engineering
dc.date 2018-02-21T04:09:21.000
dc.date.accessioned 2020-06-30T01:12:17Z
dc.date.available 2020-06-30T01:12:17Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2017
dc.date.embargo 2018-05-02
dc.date.issued 2017-05-02
dc.description.abstract <p>Investigation of multi-functional carbon-based self-sensing structural materials for structural health monitoring applications is a topic of growing interest. These materials are self-sensing in the sense that they can provide measurable electrical outputs corresponding to physical changes such as strain or induced damage. Nevertheless, the development of an appropriate measurement technique for such materials is yet to be achieved, as many results in the literature suggest that these materials exhibit a drift in their output when measured with direct current (DC) methods. In most of the cases, the electrical output is a resistance and the reported drift is an increase in resistance from the time the measurement starts due to material polarization. Alternating current methods seem more appropriate at eliminating the time drift. However, published results show they are not immune to drift. Moreover, the use of multiple impedance measurement devices (LCR meters) does not allow for the simultaneous multi-channel sampling of multi-sectioned self-sensing materials due to signal crosstalk. The capability to simultaneously monitor multiple sections of self-sensing structural materials is needed to deploy these multi-functional materials for structural health monitoring. Here, a biphasic DC measurement approach with a periodic measure/discharge cycle in the form of a square wave sensing current is used to provide consistent, stable resistance measurements for self-sensing structural materials. DC measurements are made during the measurement region of the square wave while material depolarization is obtained during the discharge region of the periodic signal. The proposed technique is experimentally shown to remove the signal drift in a carbon-based self-sensing cementitious material while providing simultaneous multi-channel measurements of a multi-sectioned self-sensing material. The application of the proposed electrical measurement technique appears promising for real-time utilization of self-sensing materials in structural health monitoring.</p>
dc.description.comments <p>This is a manuscript of an article published as Downey, Austin, Antonella D’Alessandro, Filippo Ubertini, Simon Laflamme, and Randall Geiger. "Biphasic DC measurement approach for enhanced measurement stability and multi-channel sampling of self-sensing multi-functional structural materials doped with carbon-based additives." <em>Smart Materials and Structures</em> 26, no. 6 (2017): 065008. DOI: <a href="http://dx.doi.org/10.1088/1361-665X/aa6b66" target="_blank">10.1088/1361-665X/aa6b66</a>. Posted with permission.</p>
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dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/148/
dc.identifier.articleid 1153
dc.identifier.contextkey 11602921
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/148
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13790
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/148/2017_Laflamme_BiphasicDC.pdf|||Fri Jan 14 20:26:50 UTC 2022
dc.source.uri 10.1088/1361-665X/aa6b66
dc.subject.disciplines Civil Engineering
dc.subject.disciplines Electrical and Electronics
dc.subject.disciplines Structural Engineering
dc.subject.disciplines VLSI and Circuits, Embedded and Hardware Systems
dc.subject.keywords self-sensing structural materials
dc.subject.keywords carbon-based sensors
dc.subject.keywords structural health monitoring
dc.subject.keywords smart structures
dc.subject.keywords smart materials
dc.subject.keywords measurement techniques
dc.title Biphasic DC measurement approach for enhanced measurement stability and multi-channel sampling of self-sensing multi-functional structural materials doped with carbon-based additives
dc.type article
dc.type.genre article
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relation.isOrgUnitOfPublication a75a044c-d11e-44cd-af4f-dab1d83339ff
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