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Method for contactless measuring of vibrations of a rotating body

Abstract : Stationary sensors are used to measure periodically the vibratory motions of portions of a body spinning in front of them, such as blades, and to try to determine their natural frequencies by spectral analyses. The sensors are collected together in several networks of different numbers and the determination includes a comparison of the spectra of the different networks via different operations of selection and rejection of lines. The process appreciably pushes back the limit of unambiguous frequency detection.
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https://hal-utt.archives-ouvertes.fr/hal-02518504
Contributor : Jean-Baptiste Vu Van <>
Submitted on : Wednesday, March 25, 2020 - 11:47:09 AM
Last modification on : Thursday, March 26, 2020 - 2:02:17 AM

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  • HAL Id : hal-02518504, version 1

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Citation

Pierre Beauseroy, Jean-Louis Peyraud, Régis Lengellé. Method for contactless measuring of vibrations of a rotating body. United States, Patent n° : US6668651. 2002. ⟨hal-02518504⟩

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