A Study of the Techniques for Large-depth and Multi-functional Electromagnetic Survey

Based on a study of the high-power and multi-functional launching system of the electromagnetic method and its corresponding key technologies;the authors developed a high-power(70 kw) and multi-functional(with the power supply function of CSAMT and IP) intelligent transmitting prototype that has independent intel-lectual property rights.Accordingly,the multi-functional(with the measurement function of AMT,CSAMT and IP) receiving prototype was also designed and developed.As a result,the matched data processing technology of the multi-functional electromagnetic system has been successfully resolved.A comparative trail was carried out between the self-developed multi-functional electrical system and the GDP32 system,with some good results achieved.