High-precision double-way ground voice frequency electromagnetic physical geography prospecting instrument

Abstract

The invention provides a high-precision double-way ground voice frequency electromagnetic physical geography prospecting instrument, wherein an electrode of one way is connected with a power frequency restraining module, a primary amplifying module, a programming amplifying module and a frequency selection amplifying module sequentially, and then switched in a signal following and detection module; meanwhile an electromagnetic sensor of the other way is connected with a power frequency restraining module, a primary amplifying module, a programming amplifying module and a frequency selection amplifying module sequentially, and then switched in the signal following and detection module; the two ways are connected to respective AD acquisition modules respectively and switched in a main controller module jointly; and the main controller module is further respectively connected with a human-computer interface with a display and a keyboard, as well as data storage equipment. The instrument provided by the invention adopting a natural electromagnetic field of the ground as a prospecting field source, operates in a double-way manner, is energy-saving and environment-friendly, is suitable for the prospecting of various areas, completely guarantees the stability and accuracy of measuring data, is nondestructive in prospecting, is light, is quick in data collection and measurement, is simple and convenient to control, and has wide application range.

Description

[0001] technical field [0002] The invention relates to the technical field of geophysics, material or object detection of international patent classification G01V, in particular to a high-precision dual-channel earth audio electromagnetic geophysical detector. Background technique [0003] In the known technology, geophysical prospecting is referred to as "geophysical prospecting" for short, that is, a method of using physical principles to study geological structures and solve problems in ore prospecting and prospecting. It is based on the differences in physical properties such as density, magnetism, electricity, elasticity, and radioactivity of various rocks and ores, and uses different physical methods and geophysical instruments to detect changes in natural or artificial geophysical fields. Analyze and research the obtained geophysical prospecting data, infer and interpret the geological structure and mineral distribution. At present, the main geophysical prospecting...

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Problems solved by technology

[0009] In the existing technology, it is generally necessary to manufacture the exploration field source, which consumes more energy and discharges, takes a long time to measure, and is easily affected by the shielding of low-resistance geological bodies and the non-conduction of high-resistance geological bodies, which seriously limits the application and promotion. Control the frequency stability of the electric field, so that the accuracy and precision of the measurement data cannot be guaranteed

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