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本文讨论了用双激光全息干涉法测量温度场和浓度场的误差问题,分析了各种误差来源及其计算方法,指出了扩束器和成像透镜的色差是引起测量误差的主要原因.文中还给出了修正误差的方法.
In this paper, we discuss the error of temperature field and concentration field measured by double laser holographic interferometry, analyze various sources of error and its calculation method, and point out that the color difference of beam expander and imaging lens is the main cause of measurement error. The method of correcting the error is given.