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Proceedings Paper

Optical system for control of longitudinal displacement
Author(s): Sergei Constantin Dick; Igor V. Markhvida; Leonid Victorovic Tanin
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Paper Abstract

In the present paper, a system for determining longitudinal displacement of an object is described. In this system the laser radiation is modulated by a rotating diffuser and it creates a dynamic specklefield whose intensity is analyzed by a low-frequency spectrum analyzer. A change in the geometrical parameters of the system due to varying the distance between the radiating head fixed on the object and the receiving unit with a diffuser changes the intensity fluctuation spectrum, which permits determining the displacement. The system is simple in design.

Paper Details

Date Published: 1 February 1991
PDF: 6 pages
Proc. SPIE 1454, Beam Deflection and Scanning Technologies, (1 February 1991); doi: 10.1117/12.28061
Show Author Affiliations
Sergei Constantin Dick, Byelorussian Research Institute of Neurology (Belarus)
Igor V. Markhvida, B. I. Stepanov Institute of Physics (Belarus)
Leonid Victorovic Tanin, B. I. Stepanov Institute of Physics (Belarus)

Published in SPIE Proceedings Vol. 1454:
Beam Deflection and Scanning Technologies
Leo Beiser; Gerald F. Marshall, Editor(s)

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