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超辐射发光二极管温度特性分析与测控技术研究
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摘要
本文主要研究外界环境温度的变化对光源稳定性的影响,及由此导致的光纤陀螺输出的变化。介绍了SLD光源驱动及自动温度控制的原理。并从热学角度提出了光源合理的热结构。
     从热学的角度分析了温度测控系统的各个传热过程,计算出半导体制冷器的设计参数,给出了强化或削弱相应传热过程的措施,为下—步设计奠定了理论基础。
     以AT89C51为核心自行搭建了用于测试光学器件温度性能的温度测控平台。这个测控平台主要包括一个制冷系统和一个测控系统,覆盖了电、机、热、算等多个领域的知识。论文详细给出了该平台的设计思想、设计步骤和设计结果。
     最后介绍了光源热性能测试的测试条件、测试原理、测试步骤、测试参数和测试目的。通过实验获得了光源出纤功率、制冷电流随温度变化的数据,找到了调放大倍数这一稳定光源出纤功率的办法,并分析了实验误差,提出了改进意见。
This paper will mainly focus on how the fluctuation of the environment temperature impacts the stability of optical source,and on the fluctuation of the IFOG's output due to it. It also introduces the principle of SLD drive and automatic temperature control and advances the reasonable thermal frame from the angle of thermal science.
    All the diathermanous processes of the measurement and control platform are analyzed from the angle of thermal science. We compute the design parameter of the thermoelectric refrigerator,present the measures of improving or weakening the corresponding diathermanous processes,which is the theoretical basis of the next design.
    A measurement and control platform based on the microprocessor AT89C51 is founded. This measurement and control platform includes a refrigeration system,a measurement and control system,and covers many fields such as electronics,mechanicals,thermals,algorithms. The paper presents the detailed design idea,design steps and design results.
    Finally,it introduces a lot of things about the measurement of the optical source's thermal performance,such as the condition,the principle,the steps,the parameter and the aim of this measurement. The data of the output power and the refrigeration current of optical source in the temperature fluctuation are acquired. A method of adjusting the amplificatory multiple for stabilizing the output power of optical source is found. It also analyzes the error of the experimental data and presents the plan of amelioration.
引文
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    5. R.Y. Liu, et al, Test Results of Honeywell's first-generation, high-performance interferometric fiber-optic gyroscope, SPIE, Vol. 1585, p262~275
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