What is it about?
The signal reversal in TEM is mainly interpreted as IP effect, which describes the earth capacitance charging and discharging in off-time. We analyze the whole process of the transmitter switching off in induced source TEM, and conclude that the Earth Capacitance Charging and Discharging exists during primary field switching-off process. We proposed a “negative value compensation” method to restore the inductive current in off-time.
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Why is it important?
The signal reversal in TEM is mainly interpreted as IP effect, which describes the earth capacitance charging and discharging in off-time. In this paper, we analyze the whole process of the transmitter switching off in induced source TEM, and conclude that the Earth Capacitance Charging and Discharging exists during primary field switching-off process.
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This page is a summary of: Study of transient electromagnetic method measurements using a superconducting quantum interference device as B sensor receiver in polarizable survey area, Geophysics, March 2018, Society of Exploration Geophysicists,
DOI: 10.1190/geo2017-0197.1.
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