摘 要积分视场单元（IFU- Integral Field Unit）作为面源光谱观测的重要设备已广泛应用在国外大中型光学天文望远镜上。由于加工工艺的技术限制，我国科学级IFU的研制还处于起步阶段。本文系统分析了光纤积分视场单元检测的影响因素，提出了一种IFU光纤阵列排布及光纤性能集成化检测的方法，最终研制成功了一套原理样机用以验证该方法的可行性。本论文完成的工作和取得的研究成果主要包括：一、首先报告国内外IFU的发展状况及相关参数的检测方法，介绍论文的选题意义及研究内容。二、提出了一种用于积分视场单元的光纤阵列排布精度及光纤性能集成化的检测方法，理论上能够一次性检测出IFU所有待检测参数。三、提出了研制一套IFU光纤阵列排布及光纤性能集成化的检测系统，集光纤效率检测、光纤焦比退化、光纤排布精度检测、微透镜阵列耦合光纤阵列位置精度检测、光纤端面抛光程度以及在光纤阵列端胶合微透镜阵列时胶水涂抹均匀程度等检测于一身，可以检测所有基于光纤切割的IFU系统。四、在科学目标的基础上，完成了仪器的光学设计、机械设计加工、检测系统的装调等工作。最终研制出了原理样机，并对系统放大率进行定标，给出了系统精度。五、利用现有IFU进行检测，对检测数据进行处理，并分析数据结果，对已完成工作进行总结，对下一步工作提出要求。关键词:IFU 排布精度 精度检测 积分视场单元
其他摘要
AbstractThe Integral Field Unit (IFU), as an important equipment for surface source spectral observation, has been widely used in large and medium-sized optical telescopes abroad.Due to technical limitations of machining process, the development of China's scientific-grade IFU still in its infancy, this paper systematically analyzes the requirements of the IFU testing function, and proposes an integrated test method for IFU fiber array arrangement and fiber performance. Finally, a set of prototypes was successfully developed to verify the feasibility of the method.The work and research achievements of this paper mainly include:1. The development status of IFU at home and abroad and the test method of relevant parameters are reported, and the significance of topic selection and research content of this paper are introduced.2. A integration test method for the optical array arrangement accuracy and optical fiber performance of the optical fiber IFU is proposed, which can theoretically test the parameters for IFU at one time.3. A integration test system for IFU fiber array arrangement and fiber performance is proposed, which mainly includes fiber arrangement accuracy test, microlens array coupled fiber array position accuracy test, fiber efficiency test, fiber focal ratio degradation(FRD) test, and fiber end face polishing degree. As well as the uniformity of glue application when the microlens array is glued at the end of the fiber array, all IFU systems based on fiber cutting can be test.4. On the basis of scientific goals, the optical design, mechanical design and processing, and instrument assembly and adjustment of the instrument were completed. Finally, the prototype was developed. The system magnification is scaled.5. The existing IFU is used for test, and the experimental data is processed by MATLAB, and the data results are analyzed，and put forward issues and requirements for the next step work.Key Words: IFU, Array Accuracy, Accuracy Measurement
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