MOIRE METHOD FOR MEASURING CREEP OF MAIN STEAM PIPE AT HIGH TEMPERAIURE
测量高温主蒸汽管道蠕变的云纹法研究

In this paper,The long-term creep of main steam pipe at high teniperatureis measured with moire method.The principle of measurement and explanation on moirefringes of cylindrial surface are discussed.The creep meaJsurement accuracy is improvedby elimination of the off-plane deflection.The good results verify that it is an applicablemethod