| ATEM瞬变电磁系统在长春市活断层勘探中的应用 |
| |
| 引用本文： | 嵇艳鞠,林君,于生宝,王忠,周逢道,李惠.ATEM瞬变电磁系统在长春市活断层勘探中的应用[J].吉林大学学报(地球科学版),2005(Z1). |
| |
| 作者姓名： | 嵇艳鞠 林君 于生宝 王忠 周逢道 李惠 |
| |
| 作者单位： | 吉林大学仪器科学与电气工程学院 吉林大学仪器科学与电气工程学院 吉林长春 吉林长春 |
| |
| 基金项目： | 国家自然科学基金项目(40127003) |
| |
| 摘 要： | 分析了电磁噪声在城市中的存在方式和特点,讨论了人文噪声对城市活断层探测的影响。由于城市环境的限制,瞬变电磁法中发射线圈的边长受限,提出通过加大发射电流和信号叠加、分段放大等技术来压制电磁噪声,提高信号的信噪比,以确保城市探测的有效性。采用吉林大学自行研制的ATEM瞬变电磁测量系统,在长春市伊通河和蔡家等地的活断层进行了勘探研究,取得了较好的效果。
|
| 关 键 词： | ATEM瞬变电磁系统 城市活断层 人文电磁噪声 信噪比 |
Sounding Application of ATEM Instrument in Changchun Active Fault |
| |
| JI Yan-ju,LIN Jun,YU Sheng-bao,WANG Zhong,ZHOU Feng-dao,LI Hui.Sounding Application of ATEM Instrument in Changchun Active Fault[J].Journal of Jilin Unviersity:Earth Science Edition,2005(Z1). |
| |
| Authors: | JI Yan-ju LIN Jun YU Sheng-bao WANG Zhong ZHOU Feng-dao LI Hui |
| |
| Abstract: | The paper analyzed the existing form and the characteristics of electromagnetic noise in Changchun City.Then discussed the influence of electromagnetic noise to the city active fault detection.Because of the limitations of urban environments,the length of transmitter loop was limited.Several methods were put forward such as increasing the transmitting current,signal overlap-add and the technology of enlarging by stage etc to suppress the electromagnetic noise,so as to ensure the validity of survey.Better effect was obtained from the active fault detection in Yitong River and Caijia of Changchun City with ATEM instrument developed by Jilin University. |
| |
| Keywords: | ATEM instrument city active fault cultural electromagnetic noise signal-noise ratio |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
