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Proceedings Paper

The Laser Torsional Vibrometer: Noise-Floor Considerations
Author(s): S. J. Rothberg; N. A. Halliwell; P. G. Eastwood; T. H. Wilmshurst
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Paper Abstract

Designers of rotating machinery seek to limit torsional vibrations in order to ensure smooth transmission of power and to minimise problems of coupling and bearing wear, excessive noise, fatigue etc. The principal disadvantage of traditional methods of torsional vibration measurement [1] is that they involve physical contact with the rotating member, requiring both potentially costly machinery "downtime" and space for installation in locations where access may already be restricted. Development of laser-based transducers [2] has produced solutions to these problems. In particular, the laser torsional vibrometer [3] provides non-contact measurement on rotating components of arbitrary cross-section and has the additional advantage of insensitivity to solid body motions of the component.

Paper Details

Date Published: 31 July 1989
PDF: 12 pages
Proc. SPIE 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, (31 July 1989); doi: 10.1117/12.952916
Show Author Affiliations
S. J. Rothberg, University of Southampton (United Kingdom)
N. A. Halliwell, University of Southampton (United Kingdom)
P. G. Eastwood, University of Southampton (United Kingdom)
T. H. Wilmshurst, University of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 1084:
Stress and Vibration: Recent Developments in Industrial Measurement and Analysis

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