期刊
INTERNATIONAL JOURNAL OF TURBOMACHINERY PROPULSION AND POWER
卷 6, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/ijtpp6010003
关键词
fibre bundle; optical sensor; tip clearance; turbine; aero engine
资金
- European Regional Development Fund
- Ministerio de Economia y Competitividad [RTI2018-094669-B-C31]
- Gobierno Vasco/Eusko Jaurlaritza [IT933-16]
- University of the Basque Country (UPV/EHU), Vicerrectorado de Euskera y Formacion Continua
- Gobierno Vasco/Eusko Jaurlaritza under ELKARTEK [KK-2018/00078, KK-2019/00051, 01560/2019]
- Gobierno Vasco/Eusko Jaurlaritza under HAZITEK [ZL-2020/00380]
The evolution of a custom-designed optical sensor through five configurations, with the last one showing high resolution and sensitivity, allows for the detection of blade defects, cracks, etc., which could otherwise be difficult to track.
Fibre bundle-based reflective optical sensors are good candidates for parameter monitorisation in aero engines. Tip clearance is one of those parameters of great concern that is necessary to monitor. Within this optical technology, the evolution experienced by a custom-designed optical sensor is presented from its first configuration up to the fifth one. The performance of the last configuration is compared with those of other two optical sensors that are also based on a fibre bundle design. The comparison has been carried out in an experimental program in a transonic wind tunnel for aero engines. The proven high resolution and sensitivity of the last configuration of the optical sensor opens up the possibility to detect blade defects, cracks, etc. that could otherwise be hard to track.
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