【摘要】 激光全息干涉法在传热研究中得到越来越广泛的应用.本文根据实践经验,讨论了用全息实时干涉法测量二维温度场的一些具体问题.本文指出了前人在实时法中利用普通吸收型全息图的缺点,提出利用位相型全息图代替普通吸收型全息图,试验证明结果比较理想.前人对干涉条纹的数学反演和光折射误差的分析仅是针对光线穿过单层介质的情况而言的,本文在此基础上进一步给出了光线顺序穿过被测介质、光学窗口和空气三层介质时其折射误差的修正公式.更多还原

【Abstract】 Laser holographic interferometry has found wide use in heat transfer resear-ches.Some concrete problems have been discussed in the measurement of two-dimensional temperature profile using real-time interferometri(?) method.Thedisadvantages of using the conventional hologram in real-time method havebeen pointed out.It is suggested that the phase hologram should be usedin place of the conventional ones.The result is much more satisfactory.Previous work on mathematical inversion of the interferometric patterns andanalytical methods of the light deflection error apply only to light beam travell-ing through single layer of medium.A correction formula for the deflectionerrors has been derived to account for the light beam travelling through thethree layers of media-water,the optical window and the air.更多还原