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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