A fiber optic gyroscope assembly with optical sensitive components and signal processing components separated

Abstract

The invention discloses a fiber-optic gyroscope assembly with separated optically sensitive part and signal processing part. The optically sensitive part comprises three totally independent fiber-optic gyroscopes. The sensitive axes of the gyroscopes are orthogonally and obliquely arranged on the lateral surface of a cone with a semi-cone angle of 54 degree 44' 08''. The signal processing part comprises three totally independent signal processing circuits and one secondary power supply module. The secondary power supply module comprises three totally independent secondary power supply circuits. For electrical functions, the assembly comprises three totally independent angular velocity measuring channels; each channel comprises one secondary power supply circuit, one signal processing circuit, and one fiber-optic gyroscope; the independence of measurement is improved; at the same time, the fault isolation is realized, the reliability of the assembly is enhanced; a three axes oblique arrangement scheme is adopted so that the assembly can conveniently cooperate with other gyroscope assemblies to carry out redundancy configuration, and the measurement precision is improved.

Description

technical field [0001] The invention relates to the technical field of inertial measurement, in particular to an optical fiber gyroscope assembly in which optical sensitive components and signal processing components are separated. Background technique [0002] Fiber optic gyroscope is a new type of inertial instrument based on the Sagnac effect. It has the advantages of small size, light weight, low power consumption, high reliability, and long life. It has unique advantages in the field of space inertial technology and is widely used in space vehicles. guidance, navigation and control systems. [0003] In the existing fiber optic gyroscope assembly, the integrated design is generally adopted, and the optical sensitive components and signal processing components are installed on a structure. This design method is widely used in low-precision products and can be used in small Angular velocity measurement can be achieved with a small volume and light weight, but for very hig...

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Problems solved by technology

[0003] In the existing fiber optic gyroscope assembly, the integrated design is generally adopted, and the optical sensitive components and signal processing components are installed on a structure. This design method is widely used in low-precision products and can be used in small Angular velocity measurement can be achieved with a small volume and light weight, but for very high-precision products, due to the large volume of the instrument, in order to ensure the mechanical properties, it is necessary to increase the thickness of the structure to ensure the adaptability to the mechanical environment, which increases the product. Weight, not conducive to lightweight design

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