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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/21852

Title: A practical guide to laser Doppler vibrometry measurements directly from rotating surfaces
Authors: Halkon, Ben J.
Rothberg, Steve
Issue Date: 2016
Publisher: © The Authors. Published by the Institution of Mechanical Engineers
Citation: HALKON, B.J. and ROTHBERG, S., 2016. A practical guide to laser Doppler vibrometry measurements directly from rotating surfaces. Presented at the IMechE Vibrations in Rotating Machinery (VIRM11), Manchester, 13-15th September.
Abstract: Commercially available Laser Doppler vibrometers are typically configured with a single beam to measure radial and axial vibrations or with parallel beams to measure pitch, yaw and torsional vibrations. Provided sufficient light intensity can be collected, axial and torsional vibration measurements are relatively straightforward. Radial and pitch / yaw vibration measurements are less straightforward and rotor surface roughness or treatment is critically important. Unless rotor surfaces can be considered “polished-circular”, post-processing is necessary to remove a significant cross-sensitivity to motion orthogonal to that which it is intended to measure. This paper serves as a practical guide through the optimum configurations to be used on rotors to measure all components of vibration, including subtleties associated with beam diameter and vibration amplitude on polished rotors.
Description: © Ben Halkon and Steve Rothberg 2015 . The definitive version of this article is published in IMechE Vibrations in Rotating Machinery (VIRM11)Institution of Mechanical Engineers, 2015.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/21852
Publisher Link: https://of-imeche.olib.oclc.org/folio/
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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