剪切电子散斑干涉技术在金属梁测量工程中的应用

Application of ESSPI in the measurement of bending metal bar

利用剪切电子散斑干涉技术对金属梁的挠曲度进行测量,获得金属梁受不同加载时的位移倒数场,并将其实验值与理论值进行比较,结果表明在一定的加载范围内该方法是确实可行,而且快速,简单,方便。

The bended degree of the metal crossbeam has been measured using the ESSPI.Then the derivative field with different load can be observed.The comparision of the experimental and the theoretical results shows that the method is feasible in some loading range,and this method has some advantages such as fast,simple,and convenience.