Abstract

In this study, Sea-Bird Electronics (SBE) 56 ALEC and Compact-TD were assembled on an improved fiber temperature-depth measurement system (FTDMS) to validate the reliability of towed fiber optic temperature-depth measurement system data by comparison. Fiber Bragg grating (FBG) temperature sensors, SBE56, and ALEC were assembled into a 150 m towed chain during a series of sea trials. Data accuracy was verified in an effort to improve the stability and efficiency of the towed FTDMS. Temperature data and response times from the towed FTDMS, SBE56, and ALEC were compared to find that the measurement of FTDMS is continuous and stable. The FTDMS works without human labor input to conveniently provide accurate data in real time. Data is recorded per second, which yields a high-resolution temperature-depth profile and time series. In the future, the proposed system may promote the industrialization of ocean fiber temperature measurement systems.

© 2018 The Author(s)