Near field underwater capacitive environment detection

This article presents a new underwater environment and obstacle detection device using a capacitive measurement operating in the frequency span 1 to 100MHz. The design of the sensor doesn’t require complex manufacturing process. Simulation results and practical measurement in a real environment validate the basic principle of this novel tool which is a low power sensor based on a capacitive measurement that is able to detect rock walls and air pockets with a detection range of 300-400 mm.