1 June 1998 Radial vibration measurements on rotors using laser vibrometry: a first practical solution to the cross-sensitivity problem
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Proceedings Volume 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1998) https://doi.org/10.1117/12.307692
Event: Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1998, Ancona, Italy
Abstract
Rotor vibration measurement is a key part of both the development and condition monitoring of rotating machinery. Measurement of the vibration transmitted from the rotor into a non-rotating component is the most common arrangement but in many situations the ideal rotor vibration measurement would be one taken directly from the rotating component. The non-contact nature of laser vibrometers are sensitive to motion perpendicular to the intended measurement and speed fluctuations. This paper presents a technique that enables accurate steady-state, non-synchronous vibration measurements to be made. Measurements on a test rotor have been compared with bearing mounted accelerometer measurements to validate the technique and sensitivity to inaccuracy in the measurement of rotation speed has been quantified.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Bell, John Bell, Steve J. Rothberg, Steve J. Rothberg, } "Radial vibration measurements on rotors using laser vibrometry: a first practical solution to the cross-sensitivity problem", Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); doi: 10.1117/12.307692; https://doi.org/10.1117/12.307692
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