Transducers for Measuring Displacements of Rotating Blades in Turbomachines

0509429 - ÚT 2020 FR eng A2 - Proceedings Abstract
Procházka, Pavel
Transducers for Measuring Displacements of Rotating Blades in Turbomachines.
IRC 2019 International Research Conference Proceedings. Paříž: Congress Internet Ltd. Sti., Istanbul, 2019. s. 1387-1387.
[ICEEE 2019 Internationational Conference on Electrical and Electronics Engineering. 27.08.2019-28.08.2019, Paříž]
R&D Projects: GA TA ČR(CZ) TN01000024
Institutional support: RVO:61388998
Keywords : turbines * blade vibration * blade tip timing * non-contact sensors * magnetoresistive sensors
OECD category: Applied mechanics

The paper deals with new types of transducers for measuring vibration displacements of rotating blade tips in turbomachines. In order to prevent major accidents with extensive economic consequences, it shows an urgent need for every low-pressure steam turbine stage being equipped with modern non-contact measuring system providing information on blade loading, damage and residual lifetime under operation. The requirement of measuring vibration and static characteristics of steam turbine blades therefore calls for development and operational verification of both new types of sensors and measuring principles and methods. Magnetoresistive transducers provide a range of excellent properties indicating their priority for displacement measurements of rotating blades in turbomachines.
Permanent Link: http://hdl.handle.net/11104/0302590