Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Влияние собственного отклика измерительной системы на результаты измерений в методе переходных процессов. / Sharlov, M.; Kozhevnikov, N.
15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019. European Association of Geoscientists and Engineers, EAGE, 2019. p. 865-871 (15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
}
TY - GEN
T1 - Влияние собственного отклика измерительной системы на результаты измерений в методе переходных процессов
AU - Sharlov, M.
AU - Kozhevnikov, N.
PY - 2019
Y1 - 2019
N2 - We discuss decrease in the decay rate of the TEM voltage response in cases when TEM soundings are performed using central loop arrays with small-size transmitter loops. We show that the cause of the slowly decaying central loop TEM voltage response is the intrinsic transient response of the measuring amplifier. This effect is the more noticeable the smaller the transmitter loop and/or the more resistive the ground. The effect is not observed when the receiver loop is located outside the transmitter loop. Inversion of the late time TEM response without regards to the intrinsic response of measuring unit results in appearance of nonexistent conductive ground layers and thus in misinterpretation of the TEM data. To reduce the intrinsic transient response of the measuring amplifier, the following may be useful: reduction of the latest measurement time, subtracting the intrinsic transient response from the total one, disconnection of the amplifier from the receiver loop during the current turnoff in the transmitter loop.
AB - We discuss decrease in the decay rate of the TEM voltage response in cases when TEM soundings are performed using central loop arrays with small-size transmitter loops. We show that the cause of the slowly decaying central loop TEM voltage response is the intrinsic transient response of the measuring amplifier. This effect is the more noticeable the smaller the transmitter loop and/or the more resistive the ground. The effect is not observed when the receiver loop is located outside the transmitter loop. Inversion of the late time TEM response without regards to the intrinsic response of measuring unit results in appearance of nonexistent conductive ground layers and thus in misinterpretation of the TEM data. To reduce the intrinsic transient response of the measuring amplifier, the following may be useful: reduction of the latest measurement time, subtracting the intrinsic transient response from the total one, disconnection of the amplifier from the receiver loop during the current turnoff in the transmitter loop.
UR - http://www.scopus.com/inward/record.url?scp=85071362677&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/c47391af-e74f-3181-87d9-07b9aa5de373/
U2 - 10.3997/2214-4609.201901786
DO - 10.3997/2214-4609.201901786
M3 - статья в сборнике материалов конференции
AN - SCOPUS:85071362677
SN - 9789462822825
T3 - 15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019
SP - 865
EP - 871
BT - 15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019
PB - European Association of Geoscientists and Engineers, EAGE
T2 - 15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019
Y2 - 22 April 2019 through 26 April 2019
ER -
ID: 25491562