【摘要】 介绍了一种用于对复杂内轮廓检测的强度调制型光纤传感器 ,该传感器轮辐式的光纤排列结构 ,有利于补偿表面反射率不同和光源波动等给测量带来的影响。给出并分析了检测圆弧形内轮廓时传感器的特性。从仿真结果可见 ,这种传感器能较好地实现圆弧型轮廓的检测问题 ,具有结构简单、非接触、抗电磁干扰及适合于现场使用等优点。本文为强度调制型光纤传感器用于圆弧形曲线面及复杂柱状内轮廓表面工件的非接触检测提供了必要的理论基础和设计依据。更多还原

【Abstract】 A novel optical-fiber sensor used for inspecting the complex internal contours is presented. Based on the spoke-like arrangement of the fibers, the sensor of this kind can compensate the impacts caused by the variation of the surface reflectivity and the fluctuation of the light source. The characteristics of the sensor used for inspecting the curved surface are analyzed. And the simulation results prove the feasibility of the sensor. It has the performance of compact structure, non-contact measure, antijamming to electromagnetism. The results can provide an essential theoretical basis and design basis for measuring the curved surface and workpiece with reflective optical-fiber sensor.更多还原