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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 28 — Oct. 1, 1998
  • pp: 6729–6733

Accurate remote distance sensing by use of low-coherence interferometry: an industrial application

Linas Giniu̅nas, Remigijus Karkockas, and Romualdas Danielius  »View Author Affiliations


Applied Optics, Vol. 37, Issue 28, pp. 6729-6733 (1998)
http://dx.doi.org/10.1364/AO.37.006729


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Abstract

An apparatus for accurate remote distance sensing based on fiber-optic low-coherence light interferometry has been designed for molten glass level measurement. We demonstrate operation of the meter in an adverse industrial environment with <20-μm resolution (standard deviation) within a 20-mm range with the sensing head placed in an oven at ∼800 °C. In laboratory conditions we were able to measure with 3-μm resolution, which could be improved to submicrometer level by optimization of a reference arm of the interferometer and detection electronics.

© 1998 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(280.0280) Remote sensing and sensors : Remote sensing and sensors

History
Original Manuscript: April 17, 1998
Revised Manuscript: June 29, 1998
Published: October 1, 1998

Citation
Linas Giniu̅nas, Remigijus Karkockas, and Romualdas Danielius, "Accurate remote distance sensing by use of low-coherence interferometry: an industrial application," Appl. Opt. 37, 6729-6733 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-28-6729

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