Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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METHOD OF LASER DIAGNOSTICS OF DYNAMIC FORM OF ROTATING OBJECTS

Kulikov D.V. 1 Meledin V.G. 1 Dvoynishnikov S.V. 1 Anikin Yu. A. 1 Bakakin G.V. 1 Glavniy V.G. 1 Krotov S.V. 1 Pavlov V.A. 1 Chubov A.S. 1 Pribaturin N.A. 1
1 “Institute of thermophysics SB RAS”
It was proposed the method of laser diagnostics of rotating objects dynamic form. The method is based on a linear frequency modulation of laser radiation and phase accumulation of statistical data. It was proposed method of sub-discrete definition of autocorrelation function peak, which allows to reduce computing resources of signal processing module of the measuring system in 100 times. The proposed methods allow to performing geometry measurements of fast-moving surface of measured object through a long, narrow channel in real time. The proposed method was implemented in the laser system for dynamic monitoring of rotor geometry of hydroelectric power plant generator. Proposed methods are tested in the part of laser system on working generator of hydroelectric power station. It was obtained results of rotor geometry measurements of working generator with error less than 1%. It was shown the performance of proposed methods in actual production conditions.