Research of the Short-offset TEM (SOTEM) system
文献类型：期刊论文
| 作者 | Xue GuoQiang1,2; Wu Xin1,2; Chen WeiYing1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 66期号:8页码:3514-3523 |
| 关键词 | Short-offset transient electromagnetic High power Large bandwidth Low noise Independent research and development |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2023Q0890 |
| 英文摘要 | Short-offset transient electromagnetic method (SOTEM) is a novel method developed in recent years. It has the characteristics of a strong signal and large bandwidth. The existing international mainstream equipment is a narrowband system designed and developed for the traditional large transceiver distance mode. The development of a large current broadband system under the small transceiver distance mode is of great significance for the promotion and application of SOTEM. For this reason, this paper proposes a design scheme of high current fast turn-off transmitting, low noise broadband receiving, and conquers the core technologies such as ultra-high constant voltage clamping technology, and adaptive variable damping technology. Under the same conditions, the effective transmission power is increased by about 2.5 times, and the turn-off time is compressed by nearly 4 times; the time domain noise level of the system is 0.1 nT/s, and the effective working bandwidth is 25 kHz. The equipment system not only increases the transmission current and reduces the noise, but also expands the system bandwidth and realizes the strong matching between the equipment system and the new method. The research and development of new equipment will contribute to the fine exploration of 3000 meters of mineral resources in China. |
| WOS关键词 | ELECTROMAGNETIC METHOD ; WIRE SOURCE ; SHADOW |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001045501300026 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111411]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Xue GuoQiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue GuoQiang,Wu Xin,Chen WeiYing. Research of the Short-offset TEM (SOTEM) system[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2023,66(8):3514-3523. |
| APA | Xue GuoQiang,Wu Xin,&Chen WeiYing.(2023).Research of the Short-offset TEM (SOTEM) system.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,66(8),3514-3523. |
| MLA | Xue GuoQiang,et al."Research of the Short-offset TEM (SOTEM) system".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 66.8(2023):3514-3523. |
入库方式： OAI收割
来源：地质与地球物理研究所
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