低多義性誤差的條紋反射技術系統(tǒng)結構研究
發(fā)布時間：2018-10-14 16:32
【摘要】：條紋反射技術中的多義性誤差將直接影響測量結果的精度,現(xiàn)有的多義性誤差消除方法會大大增加系統(tǒng)復雜程度,且只能補償部分的誤差。推導了條紋反射系統(tǒng)不含多義性誤差的準確相位-梯度解析模型,對該模型仿真分析得出:當系統(tǒng)設置滿足進入相機的光線與參考平面和顯示屏都成90°夾角條件時,系統(tǒng)多義性誤差近乎為0的結論,基于此,提出一種基于同軸光路系統(tǒng)結構,實驗證明了所提出的同軸光路系統(tǒng)結構在物體表面高度從0增加至3mm時多義性誤差始終近乎為0,普通系統(tǒng)結構的多義性誤差隨著物體表面高度從0增加到3 mm時,多義性相位誤差從0增加至1.5rad,實驗證明使用提出的同軸系統(tǒng)可以大大抑制條紋反射技術中的多義性誤差。
[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 擄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.
【作者單位】： 電子科技大學光電信息學院;
【基金】：國家自然科學基金(61327004) 教育部光電檢測與傳感器集成技術重點實驗室開放基金(KFJJ201501)
【分類號】：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 擄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.
【作者單位】： 電子科技大學光電信息學院;
【基金】：國家自然科學基金(61327004) 教育部光電檢測與傳感器集成技術重點實驗室開放基金(KFJJ201501)
【分類號】：O439
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