Unwrapping is an important link to ensure precision phase measuring in phase shifting interference techniques.
相位恢复去包裹技术是相移干涉中的重要环节。
Phase shifting is the key technique in phase shifting interference metrology and it greatly effects the measuring precision even results in a failure.
相移器是相移干涉计量中的关键技术，对测量精度有很大的影响，关系到相移技术的成败。
In this paper, the thermal deformation of a plate is measured by Phase shifting laser holography interference.
本文应用相位移激光全息干涉法研究板状结构的热应变。
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