低多义性误差的条纹反射技术系统结构研究
发布时间：2018-10-14 16:32
【摘要】：条纹反射技术中的多义性误差将直接影响测量结果的精度,现有的多义性误差消除方法会大大增加系统复杂程度,且只能补偿部分的误差。推导了条纹反射系统不含多义性误差的准确相位-梯度解析模型,对该模型仿真分析得出:当系统设置满足进入相机的光线与参考平面和显示屏都成90°夹角条件时,系统多义性误差近乎为0的结论,基于此,提出一种基于同轴光路系统结构,实验证明了所提出的同轴光路系统结构在物体表面高度从0增加至3mm时多义性误差始终近乎为0,普通系统结构的多义性误差随着物体表面高度从0增加到3 mm时,多义性相位误差从0增加至1.5rad,实验证明使用提出的同轴系统可以大大抑制条纹反射技术中的多义性误差。
[Abstract]:The error of polysemy in fringe reflection technology will directly affect the accuracy of the measurement results. The existing methods of eliminating the ambiguity error will greatly increase the complexity of the system and can only compensate part of the error. An accurate phase-gradient analytical model of the fringe reflection system without ambiguity error is derived. The simulation results show that when the system is set up to satisfy the 90 掳angle condition between the light and the reference plane and the display screen in the camera, Based on the conclusion that the system polysemy error is close to zero, a system structure based on coaxial optical path is proposed. The experimental results show that the polysemy error of the proposed coaxial optical system structure is almost zero when the surface height of the object increases from 0 to 3mm, and the polysemy error of the common system structure increases from 0 to 3 mm with the surface height of the object increasing from 0 to 3 mm. The phase error of polysemy is increased from 0 to 1.5rad. the experimental results show that the proposed coaxial system can greatly suppress the polysemy error in fringe reflection technique.
【作者单位】： 电子科技大学光电信息学院;
【基金】：国家自然科学基金(61327004) 教育部光电检测与传感器集成技术重点实验室开放基金(KFJJ201501)
【分类号】：O439
[Abstract]:The error of polysemy in fringe reflection technology will directly affect the accuracy of the measurement results. The existing methods of eliminating the ambiguity error will greatly increase the complexity of the system and can only compensate part of the error. An accurate phase-gradient analytical model of the fringe reflection system without ambiguity error is derived. The simulation results show that when the system is set up to satisfy the 90 掳angle condition between the light and the reference plane and the display screen in the camera, Based on the conclusion that the system polysemy error is close to zero, a system structure based on coaxial optical path is proposed. The experimental results show that the polysemy error of the proposed coaxial optical system structure is almost zero when the surface height of the object increases from 0 to 3mm, and the polysemy error of the common system structure increases from 0 to 3 mm with the surface height of the object increasing from 0 to 3 mm. The phase error of polysemy is increased from 0 to 1.5rad. the experimental results show that the proposed coaxial system can greatly suppress the polysemy error in fringe reflection technique.
【作者单位】： 电子科技大学光电信息学院;
【基金】：国家自然科学基金(61327004) 教育部光电检测与传感器集成技术重点实验室开放基金(KFJJ201501)
【分类号】：O439
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