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Proceedings Paper

Principles of active interferometry with a frequency bias applied to the Doppler anemometry
Author(s): V. S. Sobolev; A. M. Scherbachenko; E. N. Utkin; A. A. Stolpovsky; G. A. Kashcheeva; I. V. Filimonenko; S. V. Khabarov
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Paper Abstract

In this paper, offered and explored are some principles for construction of a laser Doppler measuring system on the basis of an active interferometer with feedback and frequency bias. Presented is a block-diagram of the sign-sensitive laser Doppler velosimetr (LDV) and results of its metrological investigation. The errors of this LDV can be reduced down to 0.01%. Some theoretical questions are discussed as self-mixing LDV accuracy, Doppler signal spectrum width, the number of virtual interference fringes in the measurement volume. As well the self-mixing LDA pros and cons are discussed.

Paper Details

Date Published: 10 June 2006
PDF: 8 pages
Proc. SPIE 6262, Optical Methods of Flow Investigation, 626202 (10 June 2006); doi: 10.1117/12.682918
Show Author Affiliations
V. S. Sobolev, Institute of Automation and Electrometry (Russia)
A. M. Scherbachenko, Institute of Automation and Electrometry (Russia)
E. N. Utkin, Institute of Automation and Electrometry (Russia)
A. A. Stolpovsky, Institute of Automation and Electrometry (Russia)
G. A. Kashcheeva, Institute of Automation and Electrometry (Russia)
I. V. Filimonenko, Institute of Automation and Electrometry (Russia)
S. V. Khabarov, Institute of Automation and Electrometry (Russia)


Published in SPIE Proceedings Vol. 6262:
Optical Methods of Flow Investigation
Yuri N. Dubnistchev; Bronyus S. Rinkevichyus, Editor(s)

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