光纤模斑谱在应变检测中的应用研究

Research in strain measurement using optical fiber speckle

在本文中介绍了一种以光纤模斑谱为基础的表面应变测量方法。首先分析了相关的理论基础并且介绍了这种检测方法的原理,然后给出了实验结果以及相关的曲线拟合算法,最后利用LabVIEW对实验数据进行了拟合运算,并给出得到的拟合曲线。结果表明采用这种方法能够实现对于表面应变的检测。

In this papr the authors proposed a method for surface strain measurement based on fiber speckle. Firstly they analyzed the basic theory and presented a description of this method. Then some results in experiment and polynomial curve fitting algorithm were shown. Lastly they made the fitting operation for the data in th experiment using LabVIEW and showed the fitting curve. The results show that this method is available for surface strain measurement.