【摘要】 将普通的光纤Bragg光栅(FBG)表面均匀地进行化学镀Cu,然后设计合理的测温装置对处理后的FBG进行高温实验。实验证明,经过表面镀Cu的FBG能够测量300℃的高温,线性度、准确度均较高,重复性也较好,而且可以通过控制镀层的厚度来控制其热膨胀系数,进而可以得到特定温度灵敏度的镀CuFBG温度灵敏度可提高2.4倍。进一步的实验验证了使用该FBG进行450℃的高温测量也是可行的。更多还原

【Abstract】 The surface of the fiber Bragg grating(FBG) was dealt with equably by electroless Cu-plating.Then the effective temperature-measurement installation was designed and used to do the Cu-Plating FBG high-temperature experiment.The experimental results show that the Cu-plating FBG is able to measure the high-temperature up to 300 ℃ and the linearity,the accuracy and the repeatability are all good.The Cu-plating FBG which has the special sensitivity can be gotten by controlling the plating layer′s thickness,and the temperature sensitivity can be improved 2.4 times at the most.Furthermore,another experiment indicates that it is also feasible to use the Cu-plating FBG to measure the high temperature of 450 ℃.更多还原