METHOD FOR MEASURING RADIAL AND AXIAL DISPLACEMENTS OF COMPLEX-SHAPED BLADE TIPS
S. Yu. Borovik, M. M. Kuteynikova, B. K. Raykov, Yu. N. Sekisov, O. P. Skobelev
Institute for the Control of Complex Systems, Russian Academy of Sciences, ul. Sadovaya 61, Samara, 443020 Russia
Keywords: радиальные и осевые смещения, торцы лопаток сложной формы, одновитковый вихретоковый датчик, повышение чувствительности, расширение диапазона измерений, radial and axial displacements, complex-shaped blade tips, single-coil eddy-current sensor, higher sensitivity, extended range of measurements
Abstract
A new method for measuring radial and axial displacements of complex-shaped blade tips with the help of a distributed cluster of two single-coil eddy-current sensors with sensitive elements made as conductor strips is described. The main distinctive features of the method and the results of an experimental analysis of families of calibration characteristics of both sensors are considered. This analysis proves a higher sensitivity to changes in radial displacements and an extended range of axial displacement measurements of the new method as compared to the existent one.
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