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High Temperature Proximity Measurement in Aero and Industrial Turbomachinery FREE

[+] Author Affiliations
A. G. Sheard

Broadbridge & Co., Bedford, England

S. G. O’Donnell, J. F. Stringfellow

Fylde Electronic Laboratories Ltd., Preston, England

Paper No. 97-GT-198, pp. V004T15A013; 10 pages
doi:10.1115/97-GT-198
From:
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7871-2
  • Copyright © 1997 by ASME

abstract

The measurement of disc and shaft displacement has been performed for many years as part of the development, commissioning and monitoring of all classes of turbomachinery. This measurement has traditionally been performed using sensors that can not operate above the curie point of rare earth magnets.

In this paper a programme of work is described that was undertaken to develop a measurement system that could make a measurement of target proximity in a high temperature environment. The specific objectives were firstly to make possible the measurement of turbine disc axial movement and shaft motion in the engine core, close to the combustion chamber or turbine; and secondly to make possible the measurement of tip clearance over shrouded turbine rotors.

Copyright © 1997 by ASME
This article is only available in the PDF format.

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