Next Article in Journal
Cytochrome P450 1A1/2, 2B6 and 3A4 HepaRG Cell-Based Biosensors to Monitor Hepatocyte Differentiation, Drug Metabolism and Toxicity
Previous Article in Journal
A New Angular Light Scattering Measurement of Particulate Matter Mass Concentration for Homogeneous Spherical Particles
Previous Article in Special Issue
Concrete Crack Detection and Monitoring Using a Capacitive Dense Sensor Array
Article Menu

Export Article

Open AccessArticle

Performance Comparison of Three Fibre-Based Reflective Optical Sensors for Aero Engine Monitorization

1
Communications Engineering Department, University of the Basque Country UPV/EHU, Ingeniero Torres Quevedo Plaza 1, E-48013 Bilbao, Spain
2
Fundación Centro de Tecnologías Aeronáuticas (CTA), Bizkaia Technological Park, E-48170 Zamudio, Spain
3
AOTECH, Advanced Optical Technologies S.L., E-48002 Bilbao, Spain
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(10), 2244; https://doi.org/10.3390/s19102244
Received: 12 April 2019 / Revised: 7 May 2019 / Accepted: 11 May 2019 / Published: 15 May 2019
(This article belongs to the Special Issue Smart Sensors for Structural Health Monitoring)
  |  
PDF [4801 KB, uploaded 15 May 2019]
  |  

Abstract

Among the different available optical technologies, fibre bundle-based reflective optical sensors represent an interesting alternative for parameter monitorization in aero engines. Tip clearance is one of the parameters of great concern for engine designers and engineers. In the framework of this optical technology, three fibre-based reflective optical sensors have been compared. Two of them are custom designed and based on the same geometrical fibre arrangement, whereas the third one is commercially available and relies on a different geometrical arrangement of the fibres. Their performance has been compared in clearance measurements carried out during an experimental program followed at a transonic wind tunnel for aero turbines. The custom-designed solution that operates in the most sensitive part of its response curve proved to be by far the most reliable tool for clearance measurements. Its high resolution opens up the possibility to detect small blade features such as cracks, reflectivity changes, etc. that otherwise could not be tracked. These results show that the detection of unexpected features on blade tips may have an important effect on how the clearance is calculated, ultimately giving rise to corrective actions. View Full-Text
Keywords: fibre bundle; reflective optical sensor; tip clearance; turbine; aero engine fibre bundle; reflective optical sensor; tip clearance; turbine; aero engine
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Fernández-Bello, R.; Amorebieta, J.; Beloki, J.; Aldabaldetreku, G.; García, I.; Zubia, J.; Durana, G. Performance Comparison of Three Fibre-Based Reflective Optical Sensors for Aero Engine Monitorization. Sensors 2019, 19, 2244.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top