%0 Journal Article %A Rothberg, Steve %A Halliwell, Neil A. %D 2011 %T Vibration measurements on rotating machinery using laser doppler velocimetry %U https://repository.lboro.ac.uk/articles/journal_contribution/Vibration_measurements_on_rotating_machinery_using_laser_doppler_velocimetry/9548306 %K untagged %K Mechanical Engineering not elsewhere classified %K Mechanical Engineering %X This paper explores the use of laser vibrometry for vibration measurement directly from a rotating component. The presence of a surface velocity component due to the rotation itself is shown to create a strong measurement dependency on vibration perpendicular to the intended measurement direction. Particular ambiguity results at synchronous frequencies. A mathematical means to resolve the genuine vibration components from two simultaneous laser vibrometer measurements is presented and shown to be effective in the study of nonsynchronous rotor vibrations. %I Loughborough University