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Simultaneous measurement method of dual-domain IP full parameters

A full-parameter, potential-difference technology, which is applied in the research field of geological prospecting and geophysical application technology, can solve the problems of dual-domain IP full-parameter and simultaneous measurement, and achieve the effects that are beneficial to attenuation characteristics, work efficiency, and research

Active Publication Date: 2016-01-06
LANGFANG LIFU GEOLOGICAL PROSPECTINGS TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for simultaneous measurement of dual-domain IP full parameters, aiming at the technical deficiency that existing measurement methods and instruments cannot simultaneously measure dual-domain IP full parameters, and to solve the problem of providing More technical issues that reflect the characteristics of polarized bodies and correlate information

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] The present invention is not limited to the following best implementation mode, anyone can draw other various forms of products under the enlightenment of the present invention, but no matter make any changes in its shape or structure, all those with the same or equivalent characteristics as the present application Similar technical solutions are all within the protection scope of the present invention.

[0036] Basic principle of the present invention is:

[0037] According to the principle of Fourier analysis, any periodically repeated signal can be expressed as the sum of the fundamental wave and the higher harmonics. This is true for the continuous rectangular wave with alternating positive and negative in the frequency domain IP method, and it is also true for the intermittent rectangular wave with the duty ratio equal to one in t...

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Abstract

The invention discloses a method for simultaneously measuring double-domain induced polarization full parameters. A time domain method is adopted to record and display a potential difference and a curve formed by a cycle repeated signal sent by a power supply electrode between measuring electrodes; synchronization of transmission and receiving of signals are automatically achieved by mathematical treatment; and by calculation, the real part and the imaginary part of a fundamental wave and a harmonic wave are solved according to the obtained synchronized potential difference and curve so as to further calculate apparent resistivity, apparent absolute phase position, apparent amplitude diffusivity and view diffusivity. When the apparent resistivity and the apparent absolute phase position are measured, apparent polarization rate, an apparent charging rate and an attenuation curve are calculated according to a charging curve or a discharging curve at the same time. A time domain (interrupted rectangular wave) power supply mode can be independently adopted and a frequency domain (continuous rectangular wave) power supply mode can also be independently adopted so as to realize the purpose of simultaneously measuring the double-domain induced polarization full parameters in one-time power supply. According to the method, the technical problem of providing more information which can reflect polarization body characteristics and correlated information in short one-time measurement time can be solved.

Description

technical field [0001] The invention belongs to the research field of geological exploration and geophysical prospecting application technology, and in particular relates to a method for simultaneous measurement of dual-domain IP full parameters. Background technique [0002] So far, most of the domestic measuring instruments used by domestic geological survey institutions are time-domain (that is, intermittent rectangular wave with a certain frequency, and the duty ratio is equal to 1) IP devices, which can only measure time-domain IP parameters (apparent resistivity, Apparent polarizability or apparent charging rate, etc.); and the existing frequency domain (that is, a continuous rectangular wave for a certain frequency) IP instrument can only measure frequency domain IP parameters (apparent resistivity, apparent absolute phase, etc.). At present, there is no method for simultaneous measurement of full parameters of dual-domain IP with primary power supply in China, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/00G01V3/38
Inventor 叶树民常守恩吴守七
Owner LANGFANG LIFU GEOLOGICAL PROSPECTINGS TECH
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