High-frequency high-power CSAMT transmitting technology research

doi:10.6038/cjg20171103

	High-frequency high-power CSAMT transmitting technology research
	Zhen Qi-Hui 1,2,3; Di Qing-Yun 1,2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2017-11-01
卷号	60 期号:11 页码:4160-4164
关键词	High-power Csamt Double Transmitter System High Frequency Current
ISSN号	0001-5733
DOI	10.6038/cjg20171103
文献子类	Article
英文摘要	In recent years, the demand of mineral resources in our country is increasing year by year, and the artificial source magnetotelluric method develops rapidly. The electromagnetic instruments gradually get rid of the dependence on foreign countries and independently developed geophysical instruments are emerging. For controlled source audio-frequency magnetotelluric method (CSAMT) the transmitter plays a pivotal role as the electric dipole source. However, the transmitters currently used in the field are not able to emit powerful current at high frequencies, and are limited by the separation between receivers and transmitter, since receivers are easy got into near-field zone at low frequencies, which brings extra works of near-field correction in the following data processing, and also brings about artificial errors at the same time. Meanwhile, the efficiency of field work is also reduced due to small separations. In addition, with further research on CSAMT, three dimensional arrays CSAMT survey has drawn more -attention of scholars. On the other hand, the realization of transmitting large current at high frequencies provides a good support to it. This article presents detail implementation method to transmit large power at high frequencies. Through modelling and solving the governing equations, we focus on the main factors influencing current transmission, and possibly achieve more large current at high frequencies than at low frequencies.
WOS关键词	MAGNETOTELLURIC DATA ; SYSTEM
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000416193200003
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82134]
专题	中国科学院地质与地球物理研究所
通讯作者	Di Qing-Yun
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhen Qi-Hui,Di Qing-Yun. High-frequency high-power CSAMT transmitting technology research[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(11):4160-4164.
APA	Zhen Qi-Hui,&Di Qing-Yun.(2017).High-frequency high-power CSAMT transmitting technology research.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(11),4160-4164.
MLA	Zhen Qi-Hui,et al."High-frequency high-power CSAMT transmitting technology research".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.11(2017):4160-4164.