Component position measurement through polymer material by broadband absolute distance interferometry

Peter B. Harrison, R. R J Maier, James S. Barton, J. D C Jones, Scott McCulloch, Gary Burnell

Research output: Contribution to journalArticle

Abstract

We describe the development of a fibre optic system using absolute distance interferometry for application to long-term monitoring of component positions. Initially we demonstrate the operation of a single probe in air with a distance resolution of 8 nm and an absolute displacement accuracy of 0.08% over relatively short baselines of up to a few mm. The technique is then developed to measure distance through a transparent polymer. Our in situ method utilizes a dual probe arrangement to measure optical path length and refractive index simultaneously. © British Crown Copyright 2005/MOD.

Original languageEnglish
Pages (from-to)2066-2071
Number of pages6
JournalMeasurement Science and Technology
Volume16
Issue number10
DOIs
Publication statusPublished - 1 Oct 2005

Fingerprint

interferometry
broadband
polymers
probes
optical paths
fiber optics
refractivity
air

Keywords

  • Absolute distance
  • Broad band
  • Fibre optic sensor
  • Interferometry
  • Transparent polymer

Cite this

Harrison, Peter B. ; Maier, R. R J ; Barton, James S. ; Jones, J. D C ; McCulloch, Scott ; Burnell, Gary. / Component position measurement through polymer material by broadband absolute distance interferometry. In: Measurement Science and Technology. 2005 ; Vol. 16, No. 10. pp. 2066-2071.
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Component position measurement through polymer material by broadband absolute distance interferometry. / Harrison, Peter B.; Maier, R. R J; Barton, James S.; Jones, J. D C; McCulloch, Scott; Burnell, Gary.

In: Measurement Science and Technology, Vol. 16, No. 10, 01.10.2005, p. 2066-2071.

Research output: Contribution to journalArticle

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