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Quadrature phase shift and modulation amplitude of signals in optical encoder
Author(s): A. Y. Zherdev; M. S. Kovalev; M. V. Shishova; S. B. Odinokov; D. S. Lushnikov; V. V. Popov
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Paper Abstract

The paper considers optical linear encoder based on diffraction gratings. A method of quadrature signals phase shift stabilization based on the application of head grating with specific structure is proposed. The optical scheme of position encoder based on measuring head grating with specific structure is developed and described in this paper. Mathematical modeling of quadrature signals phase shift depending on grating parameters is carried out. Based on the simulation, we propose optimal parameters of head grating structure. Design process and results for head gratings are presented in the paper.

Paper Details

Date Published: 23 April 2019
PDF: 8 pages
Proc. SPIE 11030, Holography: Advances and Modern Trends VI, 110300X (23 April 2019); doi: 10.1117/12.2520752
Show Author Affiliations
A. Y. Zherdev, Bauman Moscow State Technical Univ. (Russian Federation)
M. S. Kovalev, Bauman Moscow State Technical Univ. (Russian Federation)
M. V. Shishova, Bauman Moscow State Technical Univ. (Russian Federation)
S. B. Odinokov, Bauman Moscow State Technical Univ. (Russian Federation)
D. S. Lushnikov, Bauman Moscow State Technical Univ. (Russian Federation)
V. V. Popov, Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 11030:
Holography: Advances and Modern Trends VI
Antonio Fimia; Miroslav Hrabovský; John T. Sheridan, Editor(s)

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