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光纤线管是光纤制导武器系统的重要组成部分,由于组成材料热膨胀系数之间的差异,精确缠绕样式的光纤线包性能会随温度变化而发生显著变化。为保证光纤线包结构稳定性及性能可靠性,需要对光纤线管各组成部分进行温度性能匹配研究。本文提出了一种基于双CCD相机的热膨胀系数测量系统。该系统采用非接触方式双光路成像放大采样,通过图像处理得出被试样品在某温度变化区间内的轴向膨胀量。利用该系统完成对脱轴裸线包、碳纤维芯轴、聚四氟乙烯调节层以及成品光纤线管的热膨胀系数测试分析,测试结果与理论分析和实际使用情况一致,验证了此试验测试方法的正确性与可行性。
Fiber-optic bobbins are an important part of fiber-optic guided weapon systems. Due to the differences in the coefficients of thermal expansion of the constituent materials, the properties of an accurately wound fiber bundle vary significantly with temperature. In order to ensure the stability and performance reliability of the optical fiber cable package, the temperature performance matching of each component of the optical fiber cable tube needs to be studied. In this paper, a dual-CCD camera based thermal expansion coefficient measurement system is proposed. The system uses non-contact dual optical path imaging amplification sampling, obtained by the image processing of the sample in a certain temperature range of axial expansion. The system was used to test and analyze the thermal expansion coefficient of unworn bare wire package, carbon fiber mandrel, polytetrafluorethylene adjustment layer and finished optical fiber bobbin. The test results are consistent with the theoretical analysis and practical application. Correctness and feasibility.