Abstract

In this work, optical Fiber Bragg grating (FBG) sensors were used to measure water flow in pipes. Several types of coatings were incorporated into the design of the sensors to examine their effects on the elastic strain that the fiber underwent as a result of the water flow. ANSYS-CFX V2020 R2 software was used to model the elastic strain encountered by the fiber under various flow rates in order to assess the performance of the FBG sensors. The calculations and experimental data exhibited good convergence, demonstrating the accuracy of the FBG sensors in determining water flow. These calculations and procedures can be extrapolated to any other fluid.

摘要

在这项工作中，光纤布拉格光栅（FBG）传感器用于测量管道中的水流量。传感器的设计中采用了几种类型的涂层，以检查它们对纤维因水流而承受的弹性应变的影响。使用ANSYS-CFX V2020 R2软件对光纤在不同流速下遇到的弹性应变进行建模，以评估FBG传感器的性能。计算和实验数据表现出良好的收敛性，证明了光纤光栅传感器在确定水流方面的准确性。这些计算和程序可以外推到任何其他流体。