1 March 1995 Multifiber laser Doppler velocimeter with backward scattering
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Abstract
A laser Doppler velocimeter (LDV) using a multi-fiber optic pickup was designed. A single fiber directs the beam to the moving surface. The back scattered signals were received by ten optical fibers. A multi-fiber laser Doppler velocimeter is (MFLDV) capable of determining the value of velocity as high as 10 mm/sec and as low as 0.031 mm/sec. A good linearity is obtained between Doppler shifted frequency (Delta) f and the velocity of a moving surface with a correlation factor of 0.999. LDV using fiber optics has important advantages over conventional systems, it is simpler, easier to align, and non-invasive i.e., the surface does not need to be touched or physically contacted.
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Leszek Wolf, Leszek Wolf, Abdulghafoor Ibrahim Abdullah, Abdulghafoor Ibrahim Abdullah, Antoni Drobnik, Antoni Drobnik, Franciszek Kostrubiec, Franciszek Kostrubiec, Grzegorz Owczarek, Grzegorz Owczarek, } "Multifiber laser Doppler velocimeter with backward scattering", Proc. SPIE 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing, (1 March 1995); doi: 10.1117/12.203318; https://doi.org/10.1117/12.203318
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