为了实现对海洋温度剖面进行高时空分辨率且连续测量的目的, 研制出一种将船载拖曳应用与光纤传感技术相结合的新型测量系统。该系统首次将光纤布拉格光栅(FBG)压力传感器集成到温度拖曳链中, 从而获得深度信息并判断拖曳链姿态。文中主要讨论了该拖曳温深链系统的研制及海试情况, 包含系统装备, 压力传感器的实验室标定, 压力传感器的海上静态和动态比测试验。通过分析试验数据, 压力传感器与ALEC Compact-TD的相关系数达到0.999 837, 测量误差小于0.1 m, 进一步验证了拖曳温深链系统已初步具备实用性。

In order to accomplish the high temporal-spatial resolution and continuous measurement of the ocean temperature-depth profile, a new measurement system of combining ship towing application and optical fiber sensing technology was developed. The fiber Bragg grating (FBG) pressure sensors were integrated into the temperature drag chain for the first time, so as to obtain the depth information and judge the drag chain attitude. The development of the towing temperature-depth chain system and the situation of the sea trial were introduced, including the system equipment and the laboratory calibration results of pressure sensor before sea trial and static and dynamic test of pressure sensor at sea. The correlation coefficient of pressure sensor and ALEC Compact-TD reaches 0.999 837 and the measurement error was less than 0.1 m by analyzing the test data, which further verifies that the towing temperature-depth chain system has been initially available.