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Proceedings Paper

Uncertainty reduction of light spot angular position estimation in optical measurement system based on quadrant photodiode
Author(s): Evgeny G. Lebedko; Kirill V. Trifonov
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Paper Abstract

Systems based on quadrant photodiode can be used for solving different angular position measurement tasks. But such systems have accuracy problems. Solving these accuracy problems makes systems based on quadrant photodiode applicable for different industrial inspection processes such as positioning and pointing systems and interferometer experiments. For example angular drift in a laser beam can be a serious concern in interferometer experiments where anomalous fringe shifts can be caused by such drift.

Paper Details

Date Published: 22 June 2015
PDF: 6 pages
Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95253A (22 June 2015); doi: 10.1117/12.2184623
Show Author Affiliations
Evgeny G. Lebedko, ITMO Univ. (Russian Federation)
Kirill V. Trifonov, ITMO Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 9525:
Optical Measurement Systems for Industrial Inspection IX
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves, Editor(s)

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