A micro-miniature low-cost three-axis integrated fiber optic gyro inertial measurement device

An inertial measurement device and fiber optic gyroscope technology, applied in the field of inertial measurement, can solve the problems of high volume and weight requirements, limited versatility and interchangeability, single external output interface, etc., to improve reliability and expand applications fitness effect

Active Publication Date: 2021-06-11
BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design scheme has high requirements for volume and weight, which cannot meet the requirements of commercial small satellites for miniaturization, light weight and low cost
In addition, most of the existing fiber optic gyroscope inertial measurement devices use a single external output interface, which limits the versatility and interchangeability

Method used

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  • A micro-miniature low-cost three-axis integrated fiber optic gyro inertial measurement device
  • A micro-miniature low-cost three-axis integrated fiber optic gyro inertial measurement device
  • A micro-miniature low-cost three-axis integrated fiber optic gyro inertial measurement device

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0023] (1) Overall composition design: the schematic diagram of the shape and structure of the fiber optic gyroscope inertial measurement device is as follows figure 1 As shown, the internal structure diagram is shown in figure 2 shown. The fiber optic gyro inertial measurement device includes a three-axis shared light source 5, a Y waveguide 9, a device box 10, three fiber optic ring assemblies 4, a light source driving and cooling circuit 2, a fiber optic gyro signal processing and interface circuit 14, and a system Circuit 16, three electrical connectors 12, a circuit board bracket 15, a body 8, a box body 7, an upper cover 1, a side cover 3, an optical reference mirror 6, a side cover bracket 13, and a cooling bracket 11. In the inertial measurement of the fiber optic gyroscope, three fiber optic ring components 4 are installed on the si...

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Abstract

The present invention is a miniature low-cost three-axis integrated fiber optic gyro inertial measurement device, which includes a body, a box body, a three-axis common light source, a light source driving and cooling circuit, a fiber optic gyro signal processing and interface circuit, and a A system circuit, three fiber optic ring assemblies, three electrical connectors, and a reference mirror. The present invention provides CAN bus and RS-422 two kinds of external output interfaces, which can output the angular velocity information of the measured carrier on three sensitive axes at the same time, and realize the heterogeneous design of the communication interface; the software of the present invention provides "program comparison" and "program update" two instruction interfaces, which can respond to external instructions to compare and update the whole program, which improves reliability; each sub-component in the invention uses components of the national military standard and below, which reduces the cost , realizing the first application of domestic industrial-grade components in the aerospace fiber optic gyro inertial measurement device.

Description

technical field [0001] The invention relates to a micro-miniature low-cost three-axis integrated fiber optic gyro inertial measurement device, in particular to a micro-miniature, low-cost, multi-output interface fiber optic gyro inertial measurement device for spacecraft attitude control, belonging to the technical field of inertial measurement . Background technique [0002] As a symbol of high-tech development, spacecraft plays an extremely important role in my country's modernization. With the development and transformation of the aerospace field and the entire aerospace ecosystem, small satellites with many advantages such as low investment and operating costs, strong emergency capability and flexibility, and short system construction period are widely used in communications, science, technology experiments, military, Education and earth observation have broad development prospects in military and civilian fields. The popularization, commercialization and low cost of sm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/18
CPCG01C21/18
Inventor 李仁杰张峰刘佳李旭晟
Owner BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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