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A Highly Integrated Automatic Fiber Optical Gyroscope Sensing Coil Winding System

Shuang-Chao Ge*, Rui-Feng Yang, and Chen-Xia Guo
International Journal of Control, Automation, and Systems, vol. 19, no. 2, pp.1041-1053, 2021

Abstract : Fiber optic gyroscope (FOG) is a new type of optical sensor used to measure the rotating angular velocity. As the core component, fiber optic coil (FOC) plays a decisive role in the FOG output precision. The manufacturing level and efficiency of FOC have been main factors restricting the application and development of high precision FOG. Precision mechanical positioning method based on the photoelectric devices was researched, and high-performance fully automatic micro mechanical error compensation technique was developed. On these basis, automatic fiber distribution and winding control technology were realized. Eventually a multifunctional system was developed with fiber splitting module, fiber winding module, and calibration module. This system could accomplish automatic preparation of FOC with quadrupolar symmetric pattern according to the parameters set by user. The principle and working flow of each functional module are discussed in details. Experiments show that the system can achieve automatic speed changing, automatic reversing, constant small tension control and precise fiber arrangement. The new designed system greatly improve FOC production efficiency and is conductive to promoting high level FOG development.

Keyword : Automatic control, fiber optic coil, mechanical structure, micro mechanical error compensation

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