Uncertainty analysis of vibration measurements of tools inside fluids by laser Doppler techniques

Roberto Marsili; Luciano Pizzoni; Gianluca L. Rossi

doi:10.1117/12.307687

1 June 1998 Uncertainty analysis of vibration measurements of tools inside fluids by laser Doppler techniques

Roberto Marsili, Luciano Pizzoni, Gianluca L. Rossi

Proceedings Volume 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1998) https://doi.org/10.1117/12.307687
Event: Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1998, Ancona, Italy

Abstract

In this work a technique based on a laser vibrometer is examined for the vibration measurement of bodies with fluids between the measurement point and vibrometer head. Some mathematical models have been considered and the causes of uncertainty have been correlated with the optical characteristics of the various fluid employed and with their thickness. Optical test benches have been set up and comparative measurements with accelerometers have been carried out in order to verify the mathematical models and estimate other uncertainty source. Results of the analysis have been sued to perform forced vibration measurements on a machine shaft with special care in order to minimize the effect of the noise sources analyzed.

Citation Download Citation

Roberto Marsili, Luciano Pizzoni, and Gianluca L. Rossi "Uncertainty analysis of vibration measurements of tools inside fluids by laser Doppler techniques", Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); https://doi.org/10.1117/12.307687

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