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Fiber Optic Gyro North Finder

A fiber optic gyroscope and north finder technology, which is applied in the field of gyro north finder, can solve the problems of weak anti-vibration impact, long stop time, complex structure, etc., and achieve the effects of reducing volume, preventing excessive rotation, and large dynamic range

Active Publication Date: 2021-11-23
CHONGQING GOD ARROW INERTIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a fiber optic gyro north finder to solve the problems of the existing flexible gyro north finder such as long start-up and stop time, weak vibration and shock resistance, complex structure, large volume, and weak vibration and shock resistance

Method used

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  • Fiber Optic Gyro North Finder
  • Fiber Optic Gyro North Finder
  • Fiber Optic Gyro North Finder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Basic as attached figure 1 , figure 2 Shown: fiber optic gyro north finder, including base 1 assembly, outer cover 4, drive assembly, limit assembly, center rotation assembly, power supply 30, EMC power filter 31, display board 32 and control solution board 28 assemblies;

[0033] The base 1 assembly includes the base 1, the button switch 2, the switch connection column, the button seat and the button cover 3, the button switch 2 and the switch connection column are fixed on the side of the base 1; the button switch 2 is fixed on the base 1 through the button seat, The button cover 3 is clamped on the button seat, the end of the button seat adjacent to the base 1 is fixed with a silicon rubber ring, and a silicon rubber plate is fixed between the button cover 3 and the button seat.

[0034] The outer cover 4 is fixed on the base 1 by bolts, and the side of the outer cover 4 is provided with a display window 5; There is a paint layer; the drive assembly, limit assembl...

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PUM

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Abstract

This patent relates to the technical field of gyro north finder, specifically the fiber optic gyro north finder, including base assembly, outer cover, drive assembly, limit assembly, center rotation assembly, power supply, display board and control solution board assembly; drive assembly, limit Position assembly, central rotation assembly, power supply, display board and control calculation board assembly are installed on the base; drive assembly includes drive motor and drive gear; limit assembly includes limit motor, limit gear and limit rack; center The rotating assembly includes a frame, a large gear, a positioning plate, a rotating body, a fiber optic gyroscope, a meter circuit board and four phototransistors, the driving gear meshes with the large gear, and the limit block at the end of the limit rack can enter the positioning groove to locate. This solution uses a single-axis fiber optic gyroscope to replace a dual-axis power-tuned gyroscope for north-seeking, which solves the shortcomings of the power-tuned gyro north-finder, such as long start-up and stop times, and weak shock resistance.

Description

technical field [0001] The invention relates to the technical field of a gyro north finder, in particular to an optical fiber gyro north finder. Background technique [0002] The inertial measurement device with fiber optic gyroscopes and accelerometers as sensitive components is a completely autonomous system that does not rely on any external information, does not emit heat and energy, and has concealment and all-weather use capabilities. Realize all-round, autonomous and fast determination of orientation, which can be used as orientation reference for observation, target aiming, navigation system, and also for underground operations such as tunnels and mines. [0003] The north finder usually uses the gyroscope as the measurement component of the sensitive earth's rotation angular rate, and uses the earth's rotation angular rate component value measured by the gyroscope and the carrier inclination angle measured by the accelerometer to determine the carrier's azimuth angl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/72G01C25/00
CPCG01C19/722G01C25/005
Inventor 邓云赵娟陈国弘张灿陈再春许图
Owner CHONGQING GOD ARROW INERTIAL TECH