wire loop
Recently Published Documents


TOTAL DOCUMENTS

188
(FIVE YEARS 6)

H-INDEX

20
(FIVE YEARS 0)

2021 ◽  
Author(s):  
R. Kereselidze ◽  
D. Kakulia ◽  
G. Ghvedashvili ◽  
M. Prishvin ◽  
G. Sapharishvili

Author(s):  
Cassius Iyad Ochoa Chaar ◽  
Valentyna Kostiuk ◽  
Navid Gholitabar
Keyword(s):  

2021 ◽  
Vol 11 (2) ◽  
pp. 97
Author(s):  
Senbagavalli Sagadevan ◽  
R Ravichandran ◽  
KHarsha Kumar ◽  
Smitha Rajeev
Keyword(s):  

2020 ◽  
Vol 10 (21) ◽  
pp. 7932
Author(s):  
Yuan Jiang ◽  
Yanju Ji ◽  
Yibing Yu ◽  
Shipeng Wang ◽  
Yuan Wang

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.


2020 ◽  
Vol 32 (7) ◽  
Author(s):  
Yuki Tanisaka ◽  
Shomei Ryozawa ◽  
Masafumi Mizuide

Sign in / Sign up

Export Citation Format

Share Document