Full-parameters mathematical model of high precision fiber optic gyroscope coil and automatic forming technology

Abstract

In this paper, a full parameter mathematical model of temperature error of optical fiber coil is established. The new model can be used to optimize the physical and chemical properties of different winding schemes (quadrupole, multipole), fiber, colloid and other components in the coil, as well as the assembly structure, and to study the influence of the technological parameters such as the number of winding layers and winding schemes on the temperature performance of the optical fiber coil under different winding conditions. An on-line measurement and compensation system for core parameters of high-precision optical fiber coil is designed and built. In view of the characteristics of long length, large size and high winding difficulty in the actual winding process of high-precision optical fiber coil, based on the self-developed high-precision coil winding machine, the mechanism of errors such as stress, polarization crosstalk and symmetry introduced in the winding process is studied, and the real-time online detection system of core parameters is designed and built, which is used for realtime online detection and online compensation, so as to further develop Step by step to improve the winding success rate of high-precision optical fiber coil. A complete set of high- precision fiber coil forming technology is studied. In this paper, every link of the high-precision fiber coil forming process is studied. From the selection of optical fiber and colloid materials, automatic winding, debonding and coil forming to the detection technology of optical fiber coil, the integrated design is carried out, and the high-precision optical fiber coil meeting the application of high-precision optical fiber gyroscope is finally prepared by using the whole set of technology.