Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Double Trapezoidal Wave Transmitting System with Controllable Turn-Off Edge | |
Y. Jiang,Y. J. Ji,Y. B. Yu,S. P. Wang and Y. Wang | |
2020 | |
发表期刊 | Applied Sciences-Basel |
卷号 | 10期号:21页码:11 |
摘要 | For time domain transient electromagnetic measurement, the negative sign often appears in the polarization region, which contains the induced polarization information. It is considered that the polarization effect is caused by the capacitance charge of the earth. Extending the turn-off time of the emission current means increasing the charging time, and reducing the charging voltage, which makes the polarization effect easier to observe. Therefore, a double trapezoidal wave transmitting system with a controllable turn-off edge is designed in this paper. In the process of current transmitting, the turn-off time can be controlled by changing the clamping voltage depending on the passive clamping technology. By cutting into the absorption resistance, the current oscillation can be eliminated under the condition of ensuring linearity. To verify the effectiveness of the system, we designed a polarized wire loop based on the filament model simulating the polarized earth. Comparing the response of the wire loop, the emission current with short and long turn-off times contributes to inducing the induction and polarization fields respectively. The double trapezoidal wave transmitting system with a controllable turn-off edge is suitable for measuring the induced polarization effect. |
DOI | 10.3390/app10217932 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/64459 |
专题 | 中国科学院长春光学精密机械与物理研究所 |
推荐引用方式 GB/T 7714 | Y. Jiang,Y. J. Ji,Y. B. Yu,S. P. Wang and Y. Wang. Double Trapezoidal Wave Transmitting System with Controllable Turn-Off Edge[J]. Applied Sciences-Basel,2020,10(21):11. |
APA | Y. Jiang,Y. J. Ji,Y. B. Yu,S. P. Wang and Y. Wang.(2020).Double Trapezoidal Wave Transmitting System with Controllable Turn-Off Edge.Applied Sciences-Basel,10(21),11. |
MLA | Y. Jiang,Y. J. Ji,Y. B. Yu,S. P. Wang and Y. Wang."Double Trapezoidal Wave Transmitting System with Controllable Turn-Off Edge".Applied Sciences-Basel 10.21(2020):11. |
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