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Proceedings Paper

Laser application in chosen maritime economy divisions
Author(s): Jozef Kirkiewicz
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Paper Abstract

There has been described the method of making use of the Doppler effect in laser anemometrics, indicating that in order to define the frequency shifting, the method of heterodyne action for light beams passing through the area of examined flow has been used. The optics /scheme/ of anemometer has been shown, pointing at the arrangement of interference striae as the place of measurement. The radiation e mitted from the place of measuring location is recorded by photode tector, and then in the photodetector signal one can separate the basic signal and the frequency signal /Doppler signal!. The recorded curves, correspoding to the basic and Doppler signals, are passed on to the analysing and calculating block which displays the value of the flow velocity.

Paper Details

Date Published: 1 August 1991
PDF: 10 pages
Proc. SPIE 1391, Laser Technology III, (1 August 1991); doi: 10.1117/12.57196
Show Author Affiliations
Jozef Kirkiewicz, Maritime Univ. of Szczecin (Poland)

Published in SPIE Proceedings Vol. 1391:
Laser Technology III
Wieslaw L. Wolinski; Bohdan K. Wolczak; Jerzy K. Gajda; Danuta Gajda; Ryszard S. Romaniuk, Editor(s)

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