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Proceedings Paper

Multifiber laser Doppler velocimeter with backward scattering
Author(s): Leszek Wolf; Abdulghafoor Ibrahim Abdullah; Antoni Drobnik; Franciszek Kostrubiec; Grzegorz Owczarek
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Paper 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.

Paper Details

Date Published: 1 March 1995
PDF: 6 pages
Proc. SPIE 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing, (1 March 1995); doi: 10.1117/12.203318
Show Author Affiliations
Leszek Wolf, Technical Univ. of Lodz (Poland)
Abdulghafoor Ibrahim Abdullah, Univ. of Mosul (Jordan)
Antoni Drobnik, Technical Univ. of Lodz (Poland)
Franciszek Kostrubiec, Technical Univ. of Lodz (Poland)
Grzegorz Owczarek, Technical Univ. of Lodz (Poland)


Published in SPIE Proceedings Vol. 2202:
Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing
Wieslaw L. Wolinski; Zdzislaw Jankiewicz; Jerzy K. Gajda; Bohdan K. Wolczak, Editor(s)

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