The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing

The advent of tip-timing systems makes it possible to assess turbomachinery blade vibration using non-contact systems. Currently, the most widely used systems in industry are optical systems. However, these systems are still only used on development engines, largely because of contamination problems...

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Main Authors: Cardwell, D, Chana, K, Russhard, P
Format: Journal article
Language:English
Published: 2008
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author Cardwell, D
Chana, K
Russhard, P
author_facet Cardwell, D
Chana, K
Russhard, P
author_sort Cardwell, D
collection OXFORD
description The advent of tip-timing systems makes it possible to assess turbomachinery blade vibration using non-contact systems. Currently, the most widely used systems in industry are optical systems. However, these systems are still only used on development engines, largely because of contamination problems from dust, dirt, oil, water etc. Further development of these systems for in-service use is problematic because of the difficulty of eliminating contamination of the optics. Hence, alternatives need to be developed that are immune to contamination but have equivalent resolution and bandwidth as the optical system. Experimental measurements have been carried out using alternative sensors. An eddy current sensor has been developed in a series of laboratory and engine tests to measure rotor blade arrival times. Comparisons are made with an industry standard optical blade tip timing system. The results show that it is possible to acquire high quality blade tip timing data for use in engine condition monitoring using an eddy current sensor. This sensor allows measurements to be taken that do not suffer from flow contamination and allow deployment for hotter flow environments. Copyright © 2008 QinetiQ Ltd.
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spelling oxford-uuid:0220172a-6b99-4c5d-bfb4-f6a1787d99fd2022-03-26T08:38:46ZThe use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0220172a-6b99-4c5d-bfb4-f6a1787d99fdEnglishSymplectic Elements at Oxford2008Cardwell, DChana, KRusshard, PThe advent of tip-timing systems makes it possible to assess turbomachinery blade vibration using non-contact systems. Currently, the most widely used systems in industry are optical systems. However, these systems are still only used on development engines, largely because of contamination problems from dust, dirt, oil, water etc. Further development of these systems for in-service use is problematic because of the difficulty of eliminating contamination of the optics. Hence, alternatives need to be developed that are immune to contamination but have equivalent resolution and bandwidth as the optical system. Experimental measurements have been carried out using alternative sensors. An eddy current sensor has been developed in a series of laboratory and engine tests to measure rotor blade arrival times. Comparisons are made with an industry standard optical blade tip timing system. The results show that it is possible to acquire high quality blade tip timing data for use in engine condition monitoring using an eddy current sensor. This sensor allows measurements to be taken that do not suffer from flow contamination and allow deployment for hotter flow environments. Copyright © 2008 QinetiQ Ltd.
spellingShingle Cardwell, D
Chana, K
Russhard, P
The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title_full The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title_fullStr The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title_full_unstemmed The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title_short The use of eddy current sensors for the measurement of rotor blade tip timing-sensor development and engine testing
title_sort use of eddy current sensors for the measurement of rotor blade tip timing sensor development and engine testing
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