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Proceedings Paper

Structural optimization of the path length control mirror for ring laser gyro
Author(s): Yanghua Ma; Bingxin Quan; Zonghu Han; Jiliang Wang
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Paper Abstract

The path length control mirror (PLCM) is essential for high precision ring laser gyro (RLG). In this paper the influence of the structural parameters of the PLCM on its length compensating efficiency (LCE) and the anti-transversedeformation capability(ATDC) is numerically investigated, with the aid of the finite element software ANSYS. The result shows that the inner and outer diameters as well as the thickness of the deformation slot of the PLCM have significant influences on both its LCE and ATDC, while the position of the deformation slot of the PLCM has little impact on its LCE and mainly affect its ATDC. According to the simulation, two types of PLCMs with the same parameters all but the position of deformation slot are fabricated and experimentally demonstrated, with the result showing great agreement with the simulation. That is to say, for a given overall dimension constraint, the dynamic stability of the RLG resonator can be dramatically enhanced by a proper design of the PLCM, without almost any negative impact on its LCE. This will be of great value for the optimization of the PLCM for RLG, especially for miniature RLG.

Paper Details

Date Published: 28 February 2017
PDF: 7 pages
Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 1025617 (28 February 2017); doi: 10.1117/12.2256501
Show Author Affiliations
Yanghua Ma, Northwestern Polytechnical Univ. (China)
The Flight Automatic Control Research Institute of AVIC (China)
Bingxin Quan, The Flight Automatic Control Research Institute of AVIC (China)
Zonghu Han, The Flight Automatic Control Research Institute of AVIC (China)
Jiliang Wang, The Flight Automatic Control Research Institute of AVIC (China)


Published in SPIE Proceedings Vol. 10256:
Second International Conference on Photonics and Optical Engineering
Chunmin Zhang; Anand Asundi, Editor(s)

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