低多義性誤差的條紋反射技術(shù)系統(tǒng)結(jié)構(gòu)研究
[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(xué)光電信息學(xué)院;
【基金】:國家自然科學(xué)基金(61327004) 教育部光電檢測與傳感器集成技術(shù)重點(diǎn)實(shí)驗(yàn)室開放基金(KFJJ201501)
【分類號】:O439
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