10 September 2009 In-plane and out-of-plane deformation and vibration measurement using an optomechanical image derotator
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Abstract
Rotating machinery parts, e. g. roller bearings or turbine engines, are present in many industrial applications. Within this paper, a metrology system for determining the out-of-plane and in-plane deformation and vibration of rotating objects is presented. The system consists of an optomechanical image derotator, which is combined with a high speed camera and a scanning Laser-Doppler-Vibrometer (LDV). The image derotator is used to measure deflection and vibration in a coordinate system fixed to the rotating object. To demonstrate the capability of this measurement system, examples of high relevance in industrial applications are considered.
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Maik Rahlves, Sahar Mirzaei, Thomas Fahlbusch, Eduard Reithmeier, "In-plane and out-of-plane deformation and vibration measurement using an optomechanical image derotator", Proc. SPIE 7432, Optical Inspection and Metrology for Non-Optics Industries, 74320L (10 September 2009); doi: 10.1117/12.825254; https://doi.org/10.1117/12.825254
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