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本文提出将相移技术应用于２－Ｄ面内位移场的分离，用单模光纤相移数字散斑干涉计量技术快速、定量地同时测量２－Ｄ面内位移场。
In this paper, the phase-shift technique is applied to the 2-D in-plane displacement field and the single-mode optical fiber phase shift digital speckle interferometry technique is used to measure the 2-D in-plane displacement field simultaneously and rapidly.