在本文中，我们将总结使用光纤和变频激光器的分布式温度测量系统以及相干光频域反射计的工作原理。然后，我们将给出描述由于自然对流而冷却的水管沿线温度分布的实验结果。这些测量结果与测试段内的常规热电偶测量结果一致。证明该技术在暖通空调和空调相关工作中的可行性，为理解气流中的温度分布、共沸混合物的温度滑动、盘管表面测量以及ASHRAE感兴趣的其他应用开辟了可能性。 引用:2018年年度会议，德克萨斯州休斯顿，会议论文

In this paper, we will summarize the principles of operation of a distributed temperature measurement systems using fiber optics and variable frequency laserand a coherent optical frequency domain reflectometer. We will then present experimental results characterizing temperature distribution along a water tubecooled due to natural convection. These measurements are confirmed with conventional thermocouple measurements co-located within the test section.Demonstration of the viability of this technique for HVAC&R related work opens up the possibility of understanding temperature distributions in airflow, temperature glides of zeotropic mixtures, coil tube surface measurement and other applications of interest to ASHRAE.