1 March 1995 Multifiber laser Doppler velocimeter with backward scattering
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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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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