The development and current station of marine controlled source electromagnetic transmitter in China

Abstract

Abstract-With the development of modern marine geophysical technology, marine combined source electromagnetic method play an active role in the detectionmethod . Mainly based on the differences of signals detected from substanceunder the sea which with a different electric property,and the signalsare collected by EM induction method. As the distribution of mineral resource in seabed will be known clearly, the huge sea areas have vast resources we need, so the necessity of Marine EM detection should get more attentions. The marine controlled source transmitteris a technology integrated by multi-subjects. Facing such challenge, this paper analyses the theory and design of marine combined source electromagnetic transmitter, and lists some technology index. The aim of this paper is to guarantee the working efficiently and detecting reliability, so a series of high and new technologies should be applied, At last this paper summarizes the current condition of marine combined source magneto telluric receiver and prospect the development tend of this instrument.