光纤陀螺自动化测试系统设计-电路与系统专业论文.docxVIP

Abstract Due to its significant characteristics of high precision, simple structure, long life and low cost, FOG(fiber-optic gyroscope) has been widely used in areas such as aviation, aerospace and navigation etc. With the improving accuracy and increasing demand for fiber-optic gyroscope, there is a great shortage of traditional manual testing method, which seriously affects the research and production of fiber-optic gyroscope, so the development of a high-precision, fully functional FOG auto-testing system is of great significance. Based on virtual instrument technology, this paper implements a fiber optic gyroscope auto-testing system, which can be used to determine whether the performance of FOG is up to the standards. The hardware unit design and system software design of this system are discussed in detail. The hardware unit circuit contains signal isolation circuit, memory circuit, Ethernet circuit and power supply circuit etc. The design of the system software is mainly about the FPGA logic design of data acquisition, the embedded software design based on SOPC and the PC software design based on LabWindows/CVI. The embedded software based on SOPC is designed to achieve high-speed transmission of data; the PC software based on LabWindows/CVI is designed to receive, display and process data of FOG, simulate the test experiments for FOG by controlling incubator and turntable. The test system in this paper has been proved to be stable after a period of test and can complete all the test functions. It is easy to operate and the result is more precise. The test system can fully meet the requirements of research and production of FOG. Keyword: Fiber-optic gyroscope Virtual instrument Ethernet Data acquisition 目录 HYPERLINK \l _bookmark0 第一章 绪论1 HYPERLINK \l _bookmark1 1.1 光纤陀螺的原理及特点1 HYPERLINK \l _bookmark2 1.2 光纤陀螺国内外的发展概况2 HYPERLINK \l _bookmark3 1.2.1 国外光纤陀螺发展概况2 HYPERLINK \l _bookmark4 1.2.2 国内光纤陀螺发展概况3 HYPERLINK \l _bookmark5 1.3 课题研究背景