Multipoint laser Doppler vibrometry using holographic optical elements and a CMOS digital camera |
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| Authors: | Connelly Michael J Szecówka Przemyslaw M Jallapuram Raghavendra Martin Suzanne Toal Vincent Whelan Maurice P |
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| Institution: | Department of Electronic and Computer Engineering, Optical Communications Research Group, University of Limerick, Limerick, Ireland. michael.connelly@ul.ie |
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| Abstract: | A laser Doppler vibrometer (LDV) is described in which holographic optical elements are used to provide the interferometer reference and object illumination beams. A complementary metal-oxide semiconductor camera, incorporating a digital signal processor, is used to carry out real-time signal processing of the interferometer output to allow multipoint LDV to be implemented. |
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