Research and Experiment on Energy Supplement Technology for Underwater Marine Instruments Based on Tidal Current Energy

At present, with the gradual development of marine technology, application of marine monitoring instruments is becoming increasingly wide, for which there are more and more types of such instruments, and an increasing amount of electric energy is thus consumed. Continuous working period of such instruments and the further extension of their functions are obviously restricted by the link of electric energy supplement. Tidal current energy is a renewable energy in abundant reserve. In this paper, an electric energy supplementing device for drag-type marine monitoring instruments based on electricity generation with tidal current is designed, and its good functions are proved through water tank experiment, for which it can provide energy supplement to marine monitoring instruments.