Method for measuring two degrees of freedom of a rigid mass with a single laser interferometer

Izhak Bucher

doi:10.1117/12.386769

22 May 2000 Method for measuring two degrees of freedom of a rigid mass with a single laser interferometer

Izhak Bucher

Author Affiliations +

Proceedings Volume 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2000) https://doi.org/10.1117/12.386769
Event: 4th International Conference on Vibration Measurement by Laser Techniques, 2000, Ancona, Italy

Abstract

Laser interferometers are being used to measure a single linear degree of freedom reflecting the motion in a direction of a pointing laser beam. In a recent study, the need to measure both linear and angular transient behavior of a slowly sliding rigid mass has risen. For this purpose a special signal processing method, which is backed by a special hardware, was developed. An experimental system set- up to measure the motion of a mass connected to a cantilever beam sliding upon a rough surface will be described in this work. During sliding, the mass is subject to friction forces that give rise to stick-slip type of motion in the horizontal direction of motion and to vibration of the dragged mass in the vertical and angular directions. The basis of the proposed method is described and the relevant physical assumptions alongside with the mathematical procedure are provided.

Citation Download Citation

Izhak Bucher, Izhak Bucher, } "Method for measuring two degrees of freedom of a rigid mass with a single laser interferometer", Proc. SPIE 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2000); doi: 10.1117/12.386769; https://doi.org/10.1117/12.386769

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