【作者】 肖经；

【导师】 何宁；

【作者基本信息】 桂林电子科技大学 ， 电磁场与微波技术， 2009， 硕士

【摘要】 随着光纤制造技术的迅速发展和光纤材料的深入研究,光纤传感在表面测量技术领域发挥重要作用。与传统传感器相比,光纤传感器具有灵敏度高、抗电磁干扰能力强、耐腐蚀、防爆、结构简单、体积小,重量轻等一系列独特的优点,因此其在微型仪器及装置、质量监测等领域有着广阔的应用前景。针对表面涂层质量及形貌概况,应用反射式光学方法对表面涂层进行非接触测量,研究了涂层表面均匀度变化与反射光强的关系,获得涂层表面均匀度分布概率,为分析涂层表面质量提供有效依据。利用反射式强度型光纤传感器实现表面涂层均匀度测试,避免了涂层表面损伤,使测试精度大大提高。在涂层粒度测试理论和后向光散射测试研究的基础上,给出计算机仿真结果,完成了表面涂层形貌的建模与仿真,在Matlab环境下得到表面涂层均匀度的虚拟表示,形象描绘出表面涂层形貌,比较分析涂层实际表面和仿真表面误差,得到涂层表面均匀度差别点的分布。文中重点开展对不透明物体表面涂层均匀度进行研究,建立了反射式光纤传感器的在线测试系统,验证了这种方案的可行性,经实验测试与仿真表明,系统能完成各种平面涂层材料不同样本的测试,满足表面涂层均匀度测试要求,对后续研究和应用具有一定的参考价值。更多还原

【Abstract】 With the rapid development of the fiber-manufacturing technology and the deepresearch in the fiber-materials, the fiber sensor play an important role in the field ofthe surface-measuring technology. Compared with the traditional types of sensors,the fiber sensor have a series of unique advantages of high sensitivity, strong abilityof anti-electromagnetic interference, corrosion resistance, explosion prevention, simplestructure, small volume ,light weight. So they have a wide application prospect inmany areas such as the micro-instruments and devices, quality monitoring.Toward the quality and morphology of surface coating, the non-contact measure-ment of surface coating with re?ective optical method is achieved, and thus the dis-tribution probability of the uniformity of surface coating is obtained which providesan e?ective basis to analyze the quality of the surface coating. Using intensity-basedre?ective fiber sensor to test the surface coating uniformity, the coating surface damageis avoided, and the testing accuracy is significantly improved. Based on the theory ofcoating grain size test and the research on post-light scattering, the relationship be-tween the head structure of fiber sensor and the re?ective light intensity is analyzed.Finally, the model and simulation of the surface coating are completed. The errors ofthe simulation model and actual surface are analyzed and compared. The distributionof the points with di?erent coating surface uniformity is obtained.In this article, the relationship between the change of the coating surface uni-formity and the re?ective light intensity is researched. An online testing system isestablished to extract the data information on the surface coating. In the environ-ment of MATLAB, the uniformity of the coating surface is virtually expressed to livelydescribe the coating surface. Because each measurement has no correlation, the ex-periments and the simulation results have showed this system can accomplish testingdi?erent surfaces made of kinds of materials, satisfying the testing requirements.更多还原