Strapdown compass system based on triaxial integrated high-precision optic fiber gyroscope

A fiber optic gyroscope, high-precision technology, applied in the field of inertial navigation, can solve the problems of large size and high cost of platform compass, and achieve the effect of optimizing the overall layout, reducing interference, and high module interchangeability

Inactive Publication Date: 2014-02-26
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a strapdown compass system based on a three-axis integrated high-precision fiber optic gyro, which uses a three-axis integrated high-precision fiber optic gyro as an inertial sensitive element, and overcomes the large volume, complex structure, and shoc

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  • Strapdown compass system based on triaxial integrated high-precision optic fiber gyroscope
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  • Strapdown compass system based on triaxial integrated high-precision optic fiber gyroscope

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Embodiment Construction

[0042] See figure 1 , the present invention is a strapdown compass system based on a three-axis integrated high-precision fiber optic gyro, which is composed of a box 1 (cover 2 and bottom plate 3), a fiber optic gyro IMU component 8 and a system circuit component 10. The position connection relationship between them is: the fiber optic gyroscope IMU assembly 8 is placed in the inertial group area of ​​the base plate 3, the system circuit assembly 10 is placed in the circuit area of ​​the base plate 3, and the fiber optic gyroscope IMU assembly 8 and the system circuit assembly 10 are electrically connected by an electrical connector. connect. The front part of the outer cover 2 has a wall socket installation hole 22 for placing the external electrical connector 14, and the outer cover 2 is installed on the bottom plate 3 by screws.

[0043] The box body 1 is divided into two parts, a bottom plate 2 and an outer cover 3, as shown in Fig. 2(a) and Fig. 2(b). The maximum shape...

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Abstract

The invention relates to a strapdown compass system based on a triaxial integrated high-precision optic fiber gyroscope. The system consists of three components, namely a box, optic fiber gyroscope IMU (Inertial Measurement Unit) components and system circuit components, wherein the box is composed of a bottom plate and an outer housing; the bottom plate includes an inertial area and a circuit area, in which the optic fiber gyroscope IMU components and the system circuit components are contained respectively; the optic fiber gyroscope IMU components and the system circuit components are electrically connected by electric connectors. The invention adopts a modular integrated design, focuses on increasing the adaptivity and engineering property of the system, and successfully overcomes the problem that the service performance of the system is poor due to the large size, large weight, poor temperature performance, low consistency, complicated structure and the like of a platform gyrocompass, and the precision of the system is increased by optimizing a strapdown compass algorithm. The strapdown compass system has good practical value and broad application prospects in the technical field of inertia.

Description

Technical field: [0001] The invention relates to a strapdown compass system based on a three-axis integrated high-precision optical fiber gyroscope, which belongs to the technical field of inertial navigation. Background technique: [0002] The compass system is a sophisticated and complex navigation instrument, which can not only provide accurate heading and horizontal reference information for the navigation, armament, and command systems of large and medium-sized surface and underwater ships, but also display the ship's attitude angle and calculate the ship's position . The platform compass is generally equipped with two two-degree-of-freedom gyroscopes or three single-degree-of-freedom gyroscopes, and two electromagnetic pendulums or two accelerometers to form a leveling and north-finding circuit, and establish a three-axis space stable platform to track the geographic coordinates of the northeast sky Tie. Due to the mechanical platform structure, the platform compass ...

Claims

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Application Information

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IPC IPC(8): G01C21/16
CPCG01C21/16
Inventor 晁代宏宋来亮李治民周小红王珏张春熹
Owner BEIHANG UNIV
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