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| 浅海底瞬变电磁探测系统关断沿影响因素研究 | |
| 引用本文： | 周逢道,林君,周国华,刘长胜,王艳. 浅海底瞬变电磁探测系统关断沿影响因素研究[J]. 电波科学学报, 2006, 21(4): 532-535 |
| 作者姓名： | 周逢道 林君 周国华 刘长胜 王艳 |
| 作者单位： | 吉林大学,地球信息探测仪器教育部重点实验室,吉林,长春,130026 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 运用电路理论对发射线圈进行了建模分析;讨论了采用多匝小线圈进行浅海底瞬变电磁探测时,发射电流关断沿时间与电流幅值和发射线圈匝数之间的关系;给出了在保证发射磁矩的前提下,合理确定发射电流幅值与发射线圈匝数以缩短发射电流关断沿的原则,并通过实验进行了验证. |
| 关 键 词： | 瞬变电磁 发射机 关断时间 阶跃函数 |
| 文章编号： | 1005-0388（2006）04-0532-04 |
| 收稿时间： | 2005-01-26 |
| 修稿时间： | 2005-01-26 |
Effect factors of turnoff time for shallow seafloor transient electromagnetic detecting system |
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| ZHOU Feng-dao,LIN Jun,ZHOU Guo-hua,LIU Chang-sheng,WANG Yan. Effect factors of turnoff time for shallow seafloor transient electromagnetic detecting system[J]. Chinese Journal of Radio Science, 2006, 21(4): 532-535 | |
| Authors: | ZHOU Feng-dao LIN Jun ZHOU Guo-hua LIU Chang-sheng WANG Yan |
| Abstract: | Transmit coils are modeled and analyzed by using circuit theory. For the transient electromagnetic exploration sysytem of shallow seafloor employing small transmit coils with many turns, the relation between the turnoff time and amplitude of transmitter current and the number of coil turns is discussed. In the precondition that the transmitter magnetic moment keeps unchange, the rule of determining the amplitude of transmitter current and coil turns to short turnoff time is presented in this paper. The experimential results testify the validity of the analysis conclusions . |
| Keywords: | transient electromagnetic transmitter turn off time step function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |