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Fiber optic gyroscope temperature compensation device capable of stabilizing null drift

A technology of temperature compensation device and fiber optic gyroscope, applied in the field of fiber optic gyroscope, can solve the problems of temperature difference perception sensitivity, lack of temperature isolation buffer layer, etc., achieve uniform compensation and prevent inaccurate data

Active Publication Date: 2021-07-09
青岛君戎汇通光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent has the following disadvantages: it adopts the form of inner and outer shells, and the whole shell is composed of a hollow structure for heat preservation, but it lacks an insulating buffer layer for temperature, so that the inside of the shell is still sensitive to the temperature difference between the outside and the outside. , still needs to be further improved

Method used

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  • Fiber optic gyroscope temperature compensation device capable of stabilizing null drift
  • Fiber optic gyroscope temperature compensation device capable of stabilizing null drift
  • Fiber optic gyroscope temperature compensation device capable of stabilizing null drift

Examples

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Effect test

Embodiment 1

[0035] A stable zero-drift fiber optic gyroscope temperature compensation device, such as figure 1 ,2 As shown, a box assembly 1 is included, and the box assembly 1 includes an outer shell 9, a transition shell 10 and an inner shell 12, the outer shell 9 and the transition shell 10, the transition shell 10 and the inner shell 12 Both are fixed by connecting support rods 11, the inner wall of the inner housing 12 is fixedly equipped with a gyroscope 17, and the top outer wall of the outer housing 9, the transition housing 10 and the inner housing 12 is fixed with a top cover 18 by bolts , the bottom of the top cover 18 is provided with a sealing sheet 19, and the bottom of the sealing sheet 19 is provided with a sealing protrusion 20 matching the gap between the outer shell 9, the transition shell 10, the transition shell 10, and the inner shell 12, and the transition shell The cavity between the body 10 and the inner shell 12 is filled with water; this device, by setting the w...

Embodiment 2

[0038] A stable zero-drift fiber optic gyroscope temperature compensation device, such as Figure 3-5 As shown, in order to solve the shock absorption problem; this embodiment makes the following improvements on the basis of Embodiment 1: the shock absorber assembly 5 includes two shock absorber rods 1 22 and two shock absorber rods 2 24, and the two shock absorber rods 2 Shock absorbing rod one 22 and shock absorbing rod two 24 are arranged in a 90-degree circular array, and are arranged obliquely relative to the outer casing 9, and the tops of the two shock absorbing rods one 22 and two shock absorbing rods 24 pass through The universal joint one 21 is movably connected to the bottom of the outer casing 9, and the bottoms of the two shock absorbing rods one 22 and two shock absorbing rods 24 are all movably connected to the top of the mounting base 6 through the universal joint two 23, and the two The opposite side of the shock absorbing rod-22 is connected with the same dou...

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Abstract

The invention discloses a fiber optic gyroscope temperature compensation device capable of stabilizing null drift, and relates to the technical field of optical fiber gyroscopes. The problem that internal temperature is sensitive to external temperature change is solved. The fiber optic gyroscope temperature compensation device specifically comprises a box body assembly, the box body assembly comprises an outer shell, a transition shell and an inner shell, the outer shell and the transition shell are fixed through a connecting supporting rod, the transition shell and the inner shell are fixed through a connecting supporting rod, and a gyroscope is fixedly installed on the inner wall of the inner shell; a top cover is fixed to the outer walls of the tops of the outer shell, the transition shell and the inner shell through bolts, a sealing piece is arranged at the bottom of the top cover, and sealing protrusions in clearance fit with the outer shell, the transition shell, the transition shell and the inner shell are arranged at the bottom of the sealing piece. On one hand, the working environment of the gyroscope is actually an interval, the design can prevent frequent temperature interference in the inner shell, and on the other hand, the sensitivity degree of the inner shell to the external environment is reduced.

Description

technical field [0001] The invention relates to the technical field of fiber optic gyroscopes, in particular to a temperature compensation device for a stable zero-drift fiber optic gyroscope. Background technique [0002] Fiber optic gyroscope is a kind of angular rate sensor, which is widely used in the field of inertial navigation. It is currently the main sensor used to determine the space motion attitude of moving bodies. Since fiber optic gyroscope is a precision instrument, each component in it has a strong ability to perceive temperature. , in order to ensure its accuracy, it is necessary to control the temperature of its environment. [0003] After searching, the Chinese patent publication number is CN205825968, which discloses a heat insulation device for fiber optic gyroscopes, including an outer shell and an inner shell, and a temperature control switch is fixedly installed on the top of the inner shell of the inner shell, and the outer shell A refrigeration por...

Claims

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Application Information

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IPC IPC(8): G01C19/64
CPCG01C19/64
Inventor 刘铭李林杰
Owner 青岛君戎汇通光电科技有限公司
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