Skeleton tooling with variable groove width and optical fiber ring forming method using the tooling

Abstract

The invention discloses a variable groove width skeleton tool and a method for forming fiber rings by utilizing the tool. The method comprises the following steps of designing a groove-width-adjustable dismountable winding skeleton tool, wherein the groove width can be adjusted to meet the requirements of winding in any integral number of turns according to different diameters of fibers; winding photonic crystal fibers on the dismountable skeleton by using a special winding technology and a low-tension winding technology; curing the photonic crystal fibers to improve the performance level of photonic crystal fiber rings by using a novel gluing curing technology; dismounting the dismountable skeleton tool to obtain formed photonic crystal fiber rings. According to the skeleton tool and the method, a gluing curing process is a glue impregnation curing process, and new adhesive curing conditions, a novel curing adhesive, a novel gluing curing process and stress releasing measures are designed, so that the residual curing stress of the photonic crystal fiber rings and changes in the inner void structure of the photonic crystal fibers are reduced, and the environmental characteristics of the photonic crystal fiber rings are improved.

Description

Technical field [0001] The invention relates to a skeleton tooling with variable groove width and a forming method of a photonic crystal fiber ring, in particular to a method for winding, sizing, curing and aging treatment of a photonic crystal fiber gyroscope fiber ring with high temperature performance. Background technique [0002] Fiber optic gyroscope has the inherent characteristics of simple structure, wide accuracy coverage, high reliability and long design life. It is one of the mainstream instruments of inertial systems and has been widely used in space vehicles such as missile weapon systems, satellites and spacecraft. However, since the fiber optic ring in the fiber optic gyroscope is very sensitive to radiation and temperature, the targeted protection design increases the weight, volume and power consumption of the fiber optic gyroscope. The development of photonic crystal technology has made the performance of fiber optic gyroscope more room for improvement. Us...

AI Technical Summary

Problems solved by technology

[0011] At present, domestic fiber optic rings are mostly made of skeletonized fiber optic rings, mainly quadrupole symmetrical winding technology. The fiber optic gyroscope using this molding technology is difficult to meet the temperature and Dual requirements for mechanical properties

Therefore, in order to improve the environmental adaptability of the photonic crystal fiber ring, the process of sizing and curing is used to bond and fix the photonic crystal fiber into a whole. However, due to the particularity of the internal structure size of the photonic crystal fiber, the original winding and The curing process will inevitably lead to changes in the internal structure of the photonic crystal fiber, which will affect the temperature performance of the formed fiber ring

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