Multi-parameter simulation platform for measuring temperature characteristic of optical fiber ring

Abstract

The invention relates to the technical field of fiber-optic gyroscopes, in particular to a multi-parameter simulation platform for measuring the temperature characteristic of an optical fiber ring, and the platform can be used calculate a thermal drift error of a fiber-optic gyroscope more completely. The system comprises a parameter input module, a result display module and a program control module, and is characterized in that the parameter input module comprises a basic parameter, a solving parameter, a simulation parameter, a temperature control condition simulation parameters and a variable temperature condition simulation parameter of the optical fiber ring. Due to dual analysis based on the Shupe effect and the photoelastic effect, the thermal drift error of the fiber-optic gyroscope can be calculated more completely; the configuration parameters of light paths and circuits are added, so that a random walk coefficient of noise can be calculated according to the configuration parameters; and according to the fact, the effect on the thermal drift error of the fiber-optic gyroscope when the outermost side of the optical fiber ring is not fully wound can be fully considered.

Description

technical field [0001] The invention relates to the technical field of fiber optic gyroscopes, in particular to a multi-parameter simulation platform for measuring the temperature characteristics of fiber optic rings that can more completely calculate the thermal drift error of the fiber optic gyroscope. Background technique [0002] As the core component of the inertial system, the fiber optic gyroscope is very sensitive to temperature, and temperature drift has become one of its main error sources. The impact of temperature changes on the accuracy of gyroscopes is mainly reflected in two aspects: one is the sensitivity of the material performance of the gyroscope to temperature; the other is the influence of the surrounding temperature field on the working state of the gyroscope. The main reason why the fiber optic gyroscope is affected by the temperature of the working environment is that the temperature field around the fiber optic coil has an uneven effect on the fiber ...

AI Technical Summary

Problems solved by technology

The fiber optic gyro is affected by the temperature of the working environment mainly because the temperature field around the fiber optic coil has an uneven effect on the fiber optic coil, which will cause non-reciprocal phase shift errors

This error will lead to the drift of the zero point position of the fiber optic gyroscope and cause the instability of its scale factor, which seriously restricts the improvement of the detection accuracy of the fiber optic gyroscope.

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