Optical path debugging device for a fiber-optic gyroscope

Abstract

The invention discloses an optical path debugging device for a fiber-optic gyroscope. The device comprises a light source driving module, a photoelectric detection module and a data processing module,wherein the light source driving module is used for providing temperature control and driving required by an SLD light source; the photoelectric detection module is used for supplying power to a detector and sampling output of the detector of the fiber-optic gyroscope; the data processing module is used for sampling different output signals of the detector, driving an integrated optical phase modulator and calculating relevant parameters of the gyroscope. According to the optical path debugging device for the fiber-optic gyroscope, the problems that current product debugging is time-consumingand lower in efficiency due to mechanical operation, and production and application occasions for large-scale and high-accuracy fiber-optic gyroscopes cannot be met are solved. The device has great significance in improving product engineering.

Description

technical field [0001] The invention relates to the technical field of fiber optic gyroscopes, in particular to an optical path debugging device for fiber optic gyroscopes. Background technique [0002] The composition of the fiber optic gyroscope includes two parts: the optical path and the circuit. The composition of the optical path part includes superluminescent light-emitting diode (SLD), coupler, photodetector, integrated optical phase modulator and fiber optic ring. When designing a certain type of fiber optic gyroscope with a certain precision, the type and precision required by the optical device are basically determined. The size of the optical fiber ring depends entirely on the external dimensions of the gyroscope, and the length of the optical fiber wound by it is also determined according to its size. However, even if the five major optical components are from the same manufacturer and the same batch, there will still be differences in their parameters. The c...

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Problems solved by technology

[0004] The existing fiber optic gyroscope optical path debugging method is mechanically easy to operate, but the steps are cumbersome and consume unnecessary manpower and a lot of time, and the experience of the debugging personnel accounts for a large proportion, it is impossible to obtain actual parameters for a specific optical path, and the degree of automation is low. The efficiency is also very low, which cannot meet the production environment of fiber optic gyroscopes with large quantities and high precision requirements

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