Robust sensing methodology for detecting change with bistable circuitry dynamics tailoring

R. L. Harne, K. W. Wang

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

In contrast to monitoring natural frequency shift, bifurcation-based sensing techniques utilize dramatic switches in response amplitude to detect structural change. We demonstrate a highly sensitive bifurcation-based sensing method requiring only the monitored structure, a transduction mechanism, and bistable electric circuitry. The system configuration is broadly applicable from, e.g., microscale mass sensing to structural health monitoring. In contrast to single bifurcation events of past techniques, the present methodology introduces new bifurcations that may be utilized sequentially for monitoring numerous thresholds of structural parameter change. We show that bifurcation-based sensing potential and versatility is greatly advanced.

Original languageEnglish (US)
Article number203506
JournalApplied Physics Letters
Volume102
Issue number20
DOIs
StatePublished - May 20 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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