The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel

James H. Barrington; Stephen W. James; Thomas Kissinger; Stephen E. Staines; Simon Prince; Erica Alucsa-Saeza; Nicholas J. Lawson; Ralph P. Tatam

doi:10.1117/12.2679414

23 May 2023 The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel

James H. Barrington, Stephen W. James, Thomas Kissinger, Stephen E. Staines, Simon Prince, Erica Alucsa-Saeza, Nicholas J. Lawson, Ralph P. Tatam

Author Affiliations +

Proceedings Volume 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023); 1264303 (2023) https://doi.org/10.1117/12.2679414
Event: European Workshop on Optical Fibre Sensors (EWOFS 2023), 2023, Mons, Belgium

Abstract

The work presented demonstrates that key parameters in aerodynamic structural characterisation of pressure, strain, and structural dynamics, can be all measured via optical fibre sensors interrogated using the principles of range-resolved interferometry (RRI). When used to interrogate sensors simultaneously deployed on a high lift wind in a wind tunnel, the approach yielded resolutions of 31 μPa/ √ Hz and 1 nε/ √ Hz at a bandwidth of 1526 Hz for pressure and strain, respectively, demonstrating the accuracy and versatility of the RRI signal processing technique.

Citation Download Citation

James H. Barrington, Stephen W. James, Thomas Kissinger, Stephen E. Staines, Simon Prince, Erica Alucsa-Saeza, Nicholas J. Lawson, and Ralph P. Tatam "The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel", Proc. SPIE 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023), 1264303 (23 May 2023); https://doi.org/10.1117/12.2679414

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