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System and method for tracking optical fringes, to measure the offset between two surfaces using an interferometer
System and method for tracking optical fringes, to measure the offset between two surfaces using an interferometer
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机译:跟踪光学条纹以使用干涉仪测量两个表面之间的偏移的系统和方法
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摘要
A band matching system and method (213a) enables accurate determination of a disparity between two surfaces using an interferometer. The band matching system and method (213a) can be implemented in an automatic inspection system (90) for contactlessly measuring undercut or protrusion of an optical fiber (26) relative to a surrounding support material (36) at the endface (79) of an optical fiber termination (37). The inspection system (90) measures an offset of the fringe (113') at the target (82) in the image in order to determine the disparity. In structure, the inspection system (90) has a measurement apparatus (91) with an interferometer (98) controlled by a machine vision system (92) for determining the degree of disparity. Further, the machine vision system (92) employs the band matching system and method (213a) for enhancing the performance of the inspection system (90) and the ultimate calculation of the disparity.
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