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Aeronautical miniaturized inertial navigation component using 50-type laser gyro

A technology of inertial navigation and laser gyroscope, which is applied in the field of laser inertial navigation, can solve the problems of large volume and weight, restricting the application field, etc., and achieve the effects of simple installation, lightening cable weight and compact layout

Active Publication Date: 2019-01-18
BEIJING AEROSPACE ERA LASER NAVIGATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the volume and weight of various types of laser inertial groups are still relatively large, which is difficult to meet the demand, which restricts the further expansion of its application field.

Method used

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  • Aeronautical miniaturized inertial navigation component using 50-type laser gyro
  • Aeronautical miniaturized inertial navigation component using 50-type laser gyro

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0065] Such as figure 1 and figure 2 As shown, after the laser strapdown inertial measurement combination device is powered on, the secondary power supply circuit 10 converts the received power supply (+28V±4V) into voltage signals of ±5V, ±15V, +300V, and ±70V power supplies and outputs them to , Jitter frequency stabilization circuit 6, respectively transmit ±5V and ±15V power supply signals to high and low voltage circuit 5, satellite navigation / direction finding receiving circuit 7, computer circuit 8, I / O circuit 9, filter circuit 13, I / F conversion The circuit 15 operates each circuit.

[0066] The high and low voltage circuit 5 receives the ±15V voltage signal output by the secondary power supply circuit 10, and converts the received voltage signal into the starting voltage (feature: voltage value of 2000V~5000V) and maintaining The voltage (feature: the voltage value is 650V) is transmitted to the 50-type laser gyroscope through the motherboard circuit 4 of the main...

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PUM

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Abstract

The invention relates to an aeronautical miniaturized inertial navigation component using a 50-type laser gyro, belonging to the technical field of laser inertial navigation. An inertial sensitive element component of the invention has a compact body structure, and an integrated aluminum alloy body has a complicated structure, which is processed by precision casting and then by finish machining; the structure of the sensitive element component has a simple installation relationship, which increases structural reliability and accuracy; and the body design comprehensively considers the structural strength and stiffness, jitter efficiency, installation accuracy, body barycenter trimming, assembly process, weight reduction, processing technology and other factors. Aiming at low structural strength stiffness, low jitter efficiency and thermal problems that are easy to occur in the miniaturized body structure, a large number of finite element analysis and design works are carried out to makethe whole body structure have better force and thermal characteristics.

Description

technical field [0001] The invention relates to an aviation miniaturized inertial navigation component using a 50-type laser gyroscope, and belongs to the technical field of laser inertial navigation. Background technique [0002] The laser inertial navigation component is one of the main equipment of the control system. Its main working principle is to use the laser gyroscope and quartz accelerometer as inertial sensitive components to measure the carrier speed, attitude and other information in real time, and provide the basis for the control system to perform navigation calculations. The strapdown inertial navigation system has the characteristics of simple structure, long working life, strong adaptability to mechanical environment, and higher reliability. The laser gyroscope and the laser strapdown inertial navigation system composed of it represent the development direction of the future high-precision and high-reliability inertial measurement device, and have become th...

Claims

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Application Information

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IPC IPC(8): G01C21/18G01S19/47
CPCG01C21/165G01C21/18G01S19/47
Inventor 郭恺李世杰李志华陈善秋黄世涛
Owner BEIJING AEROSPACE ERA LASER NAVIGATION TECH CO LTD
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