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Применить Всего найдено 2. Отображено 2.
11-03-2015 дата публикации

Method for removing electromagnetic coupling in phase position induced polarization exploration

Номер: CN104407389A
Автор: GUO PENG, LIN PINRONG, SHI FUSHENG, ZHENG CAIJUN, XU BAOLI, LI YONG, LI JIANHUA
Принадлежит:

The invention relates to the technical field of physical geography phase position induced polarization exploration, in particular to a method for removing electromagnetic coupling in phase position induced polarization exploration. The method comprises the following steps: receiving a periodic square signal emitted to the underground from an emission electrode, so as to obtain an actually measured signal, wherein the actually measured signal comprises a base frequency signal and an odd harmonic signal; respectively calculating induced polarization phase position values of the base frequency signal and the odd harmonic signal; removing electromagnetic coupling from the induced polarization phase position values, obtained through calculation, of two frequencies according to preset calculation rules. The method for removing electromagnetic coupling in phase position induced polarization exploration, which is provided by the embodiment of the invention, is capable of effectively removing electromagnetic ...

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Номер записи: 1
29-10-2014 дата публикации

Multi-parameter extraction data processing method of time domain induced polarization full-waveform sampling

Номер: CN104122594A
Автор: LI JIANHUA, LIN PINRONG, LI TANG, WANG JUNLU, LI YONG, ZHENG CAIJUN, SHI FUSHENG, XU BAOLI
Принадлежит:

Disclosed is a multi-parameter extraction data processing method of time domain induced polarization full-waveform sampling. The multi-parameter extraction data processing method comprises step 1, sending steady flow of 'forward supply to stop to reverse supply to stop 1 to 1 periodic current signals to the earth through a power supply circuit which is formed by a transmitter and a power supply electrode and synchronously recording and receiving full-waveform data of potential difference signals on the electrode through a receiver on a measurement point; step 2, calculating the apparent resistivity and the apparent polarizability through the recorded full-waveform data and device coefficients; step 3, performing iscrete Fourier transform on charging and discharging full-waveform data of one recorded cycle, solving real parts and imaginary parts of fundamental harmonics and odd harmonics and calculating the corresponding amplitude and phase; step 4, calculating the apparent frequency dispersivity ...

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Номер записи: 2