Resonance suppression on nanoscale viscoelasticity measurement

Yi Hao Du, Ping Xie, Lei Zhang, Qing Ze Zou

Research output: Contribution to journalArticle

Abstract

Aiming at the cantilever resonance leads to large measurement data errors in indentation measuring soft material, a method to suppress the cantilever resonance on the broadband viscoelasticity measurement is proposed. A notch filter type prefilter based on z-axis dynamics is designed, and used to filter the input drive voltage; An adaptive filter based on the least mean square (LMS) is designed, and referring to the Hertz contact model to filter the complex compliance of soft materials, furtherly eliminate the residual cantilever resonance effects in input link and output link. The validity of the cantilever resonance suppression method is verified by implementing the polydimethylsiloxane (PDMS) sample viscoelasticity measurement.

Original languageEnglish (US)
Pages (from-to)473-476
Number of pages4
JournalJiliang Xuebao/Acta Metrologica Sinica
Volume36
Issue number5
DOIs
StatePublished - Sep 22 2015

Fingerprint

viscoelasticity
Viscoelasticity
retarding
filters
adaptive filters
Notch filters
Adaptive filters
Polydimethylsiloxane
notches
indentation
Indentation
broadband
output
Electric potential
electric potential

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering

Keywords

  • Adaptive filter
  • Metrology
  • Prefilter
  • Resonance suppression
  • Viscoelasticity measurement

Cite this

Du, Yi Hao ; Xie, Ping ; Zhang, Lei ; Zou, Qing Ze. / Resonance suppression on nanoscale viscoelasticity measurement. In: Jiliang Xuebao/Acta Metrologica Sinica. 2015 ; Vol. 36, No. 5. pp. 473-476.
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Resonance suppression on nanoscale viscoelasticity measurement. / Du, Yi Hao; Xie, Ping; Zhang, Lei; Zou, Qing Ze.

In: Jiliang Xuebao/Acta Metrologica Sinica, Vol. 36, No. 5, 22.09.2015, p. 473-476.

Research output: Contribution to journalArticle

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T1 - Resonance suppression on nanoscale viscoelasticity measurement

AU - Du, Yi Hao

AU - Xie, Ping

AU - Zhang, Lei

AU - Zou, Qing Ze

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AB - Aiming at the cantilever resonance leads to large measurement data errors in indentation measuring soft material, a method to suppress the cantilever resonance on the broadband viscoelasticity measurement is proposed. A notch filter type prefilter based on z-axis dynamics is designed, and used to filter the input drive voltage; An adaptive filter based on the least mean square (LMS) is designed, and referring to the Hertz contact model to filter the complex compliance of soft materials, furtherly eliminate the residual cantilever resonance effects in input link and output link. The validity of the cantilever resonance suppression method is verified by implementing the polydimethylsiloxane (PDMS) sample viscoelasticity measurement.

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