A New Method for Experimentally Measuring the Internal Solitary Wave Based on Optical Fiber Sensing

Ocean exploration-oriented temperature and salinity (TS) sensor based on bend-insensitive microfiber Mach-Zehnder interferometer (MMZI) is proposed and demonstrated in a marine environment. To solve the demodulation problem induced by the narrow waveband of the spectrometer used in the sea trial, a MMZI sensor is calibrated and demodulated by machine learning method. Results show that even if the wavelength range used in demodulation is as small as tens of nanometers, a relatively accurate demodulation can still be achieved. Then a sea trial is performed based on the design of the test system on board. Compared with commercial conductivity-temperature-depth systems, mean relative errors of 2.28% and 2.29% for TS measurement are obtained. In addition, the influence of spectral range on the demodulation result and response of the spectrum to fiber bending is discussed. Repeatability and stability of the sensor are proved in repeated sea trials. The sensor demonstrated here provides a new optical method for measuring TS in seawater with the advantages of multi-parameter measurement, low cost, easy deployment, and high accuracy, which will hopefully become a useful complement to the existing electrical method used in ocean exploration.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

A New Method for Experimentally Measuring the Internal Solitary Wave Based on Optical Fiber Sensing

Cited by 2 publications

References 20 publications

A Hybrid Vision-Based Method of Encountered Wave Field Measurement for Navigating Surface Vehicles

A Hybrid Vision-Based Method of Encountered Wave Field Measurement for Navigating Surface Vehicles

Ocean exploration-oriented temperature and salinity sensor based on bend-insensitive microfiber Mach-Zehnder interferometer

Contact Info

Product

Resources

About