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Proceedings Paper

Comparison of three different configurations of an optical sensor for tip-clearance measurements in turbines
Author(s): Iker García; Joseba Zubia; Amaia Berganza; Josu Beloki; Javier Mateo; Carmen Vazquez
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Paper Abstract

The influence of the tip clearance on the performance of rotating turbo machinery is well known. The objective of this work was to measure this parameter using a non-contact sensor with a precision of 30 μm in a real turbine. An optical sensor whose main component is a bundle of optical fibers was selected to carry out the measurements. Three different configurations of the sensor have been tested by taking measurements on two distinct turbines. Tip-clearance measurements are achieved with the desired precision, providing the opportunity to develop applications related to structural health monitoring or active clearance-control systems.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A5 (2 June 2014); doi: 10.1117/12.2059642
Show Author Affiliations
Iker García, Univ. del País Vasco (Spain)
Joseba Zubia, Univ. del País Vasco (Spain)
Amaia Berganza, Univ. del País Vasco (Spain)
Josu Beloki, CTA-Aeronautical Technologies Ctr. (Spain)
Javier Mateo, Univ. de Zaragoza (Spain)
Carmen Vazquez, Univ. Carlos III de Madrid (Spain)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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