Real-time monitoring of structural vibration using spectral-domain optical coherence tomography

Shuncong Zhong, Hao Shen, Yaochun Shen

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

We report in this paper the development of a spectral-domain optical coherence vibration tomography (OCVT) using a broadband CCD-based spectrometer and a short-coherence white light source. We demonstrate that both the vibration amplitude and frequency can be quantified, in the frequency range 0–250 Hz, with an axial resolution of 1 μm. Furthermore, the inner structure (layer thickness) of a vibrating sample can also be quantified simultaneously. The developed OCVT is non-contact and noninvasive in nature, thus is ideal for real time and in situ monitoring of low-frequency micro-vibrations that have critical impacts on many high-precision manufacturing and engineering processes.
LanguageEnglish
Pages127-131
Number of pages5
JournalOptics and Lasers in Engineering
Volume49
Issue number1
Early online date1 Sep 2010
DOIs
Publication statusPublished - Jan 2011

Fingerprint

structural vibration
Optical tomography
tomography
vibration
Tomography
Monitoring
Charge coupled devices
Light sources
Spectrometers
charge coupled devices
light sources
manufacturing
frequency ranges
engineering
spectrometers
low frequencies
broadband

Keywords

  • structural vibration
  • optical coherence tomography
  • non-destructive testing

Cite this

Zhong, Shuncong ; Shen, Hao ; Shen, Yaochun. / Real-time monitoring of structural vibration using spectral-domain optical coherence tomography. In: Optics and Lasers in Engineering. 2011 ; Vol. 49, No. 1. pp. 127-131.
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Zhong, S, Shen, H & Shen, Y 2011, 'Real-time monitoring of structural vibration using spectral-domain optical coherence tomography' Optics and Lasers in Engineering, vol. 49, no. 1, pp. 127-131. https://doi.org/10.1016/j.optlaseng.2010.08.008

Real-time monitoring of structural vibration using spectral-domain optical coherence tomography. / Zhong, Shuncong; Shen, Hao ; Shen, Yaochun.

In: Optics and Lasers in Engineering, Vol. 49, No. 1, 01.2011, p. 127-131.

Research output: Contribution to journal › Article

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N2 - We report in this paper the development of a spectral-domain optical coherence vibration tomography (OCVT) using a broadband CCD-based spectrometer and a short-coherence white light source. We demonstrate that both the vibration amplitude and frequency can be quantified, in the frequency range 0–250 Hz, with an axial resolution of 1 μm. Furthermore, the inner structure (layer thickness) of a vibrating sample can also be quantified simultaneously. The developed OCVT is non-contact and noninvasive in nature, thus is ideal for real time and in situ monitoring of low-frequency micro-vibrations that have critical impacts on many high-precision manufacturing and engineering processes.

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Zhong S, Shen H, Shen Y. Real-time monitoring of structural vibration using spectral-domain optical coherence tomography. Optics and Lasers in Engineering. 2011 Jan;49(1):127-131. https://doi.org/10.1016/j.optlaseng.2010.08.008

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