组合散斑法的研究

本文是笔者为水工结构模型试验应用散斑技术的研究成果之一,提出了一种“组合散斑法”,此法不同于普通的双曝光法.它可以在一张全息底片上将模型不同状态的位移信息组合记录,增加了测试的灵活性。文中介绍了用单片和双片的记录方式、位移矢量方向的判定和位移计算等散斑技术,并给出了验证实例.

A Research of Combined Speckle Methord

This paper is one of the research results of the speck'.e interferometry technque's application for hydraulic structure model test by wr tera. A "combined speckle method"is introduced and this method is d fferent from the ordinary double expo ure method. The dispjacement Informations of d fferent state of the model may be recorded combjnationa ;y by this method in one holographic p ate. It ncrease-t the measure f exibility. This paper iaroduce the speck e echnique, by one peeor wopaes, such at the record way, de erming the d reotion of the specke displacement vector and the diep acement cacuaion, e, Demonstratio are giveu here.