Overview of Underwater Electric Filed Measurement Technology Research

Abstract

Underwater electric fields have the characteristics of complex field sources, high dynamic range, and broad frequency band, making high-precision observation difficult. They put forward high requirements for observation methods, measurement sensors, instrument equipment, and signal processing methods. Underwater electric field measurement technology is widely used in various disciplines such as underwater target detection, geophysical exploration, deep geological structure research, and physical oceanography. This paper briefly reviewed the development process of underwater electric field measurement technology, summarized the current research in China and abroad, and clarified the key issues and difficulties in the research on underwater electric field measurement technology. The paper also reviewed the equipment, platform, and signal processing methods related to underwater electric field measurement technology, listed representative application cases in multiple disciplines such as underwater target detection, geophysical exploration, deep geological structure research, and physical ocean observation separately, and analyzed the problems and shortcomings of current underwater electric field measurement technology. On this basis, the prospects for technological development were envisioned, and some constructive suggestions were put forward.

Keywords

• underwater electric field measurement
• underwater target detection
• electric field sensor
• chopper amplifier