Study on mode vibration of Bronze Chime Bells by rainbow holographic interferomatry

In this paper,the modes of vibration of Bronze Chime Bells are described by time-average rainbow holographic interferomatry.We have analysed and compared effect of several parameters on monochrometicity and colour-blur of reconstruction image in optical system.The experiment and analysis show that the major advantage of the method is that the image can be reconstructed with a whiteright source in any case and the speckle noise is decreased.The conclusion of this work is also suitable for other 3-D vibration object.