I. Theoretical basis
The design of natural electric field ground water detector is mainly based on electromagnetic field theory and earth electric field theory. Electromagnetic field theory is a core theory in physics, which describes the basic properties of electric and magnetic fields and their interrelationships. In the field of earth science, electromagnetic field theory is widely used in the earth's magnetic field, electromagnetic induction, and conductivity determination.
The geodetic electric field is the electric field on the Earth's surface, which is mainly caused by the uneven distribution of conductivity within the Earth and on the Earth's surface. The change of geodetic electric field is closely related to the underground geological structure, hydrogeological conditions, etc. Therefore, by observing the change of geodetic electric field, we can obtain the information of underground geological body.
Design Principle
The core of the design of the natural electric field ground water detector lies in the frequency selection to accept the audio electric field signals of the earth's electric field at multiple frequency points. By selecting different frequencies, different geological formations can be observed. For example, lower frequencies are better for deeper formations, while higher frequencies are better for shallower formations.
In terms of signal processing, the natural electric field ground water detector uses a weak signal detection technique. This technology can amplify, filter, selective frequency detector, integrate and other processing of the weak audio earth electric field signal, and then analyze the signal after conditioning it into a digital signal. This processing can effectively improve the signal-to-noise ratio of the signal, so as to obtain more accurate geological information.
Application fields
Natural electric field ground water detector has a wide range of applications in the fields of geological exploration, hydrogeological survey, environmental geological assessment and so on. For example, in the field of water searching, the distribution and depth of underground aquifers can be inferred by observing the law of change of the earth electric field. In the field of geological structure research, natural electric field ground water detector can help us understand the distribution, thickness, lithology and other information of the strata.
Technical features
1. Multi-channel and multi-mode data acquisition: Natural electric field ground water detector adopts multi-channel and multi-mode data acquisition technology, which can simultaneously acquire electric field signals of multiple frequencies and improve the efficiency of data acquisition.
2. Automated analysis and processing: through the automated analysis and processing of the collected data, the data can be saved and plotted in real time, which is convenient and quick.
3. Strong anti-interference ability: In the hardware design and software development, a variety of reliable technologies are adopted, so that the anti-interference ability and the stability of the system have been strengthened.
4. Automatic map to find water instrument: the earth electromagnetic field as a field source, based on the electrical conductivity differences of different underground geological structures, through the measurement of different frequencies of the electric field component of the law of change, to study the geological structure and changes in the situation, scientific search for groundwater resources geologic structure of the changes in the situation through the curve graphs show in real time. A simple one-key operation automatically generates the geological profile, getting rid of the cumbersome computerized mapping. You can quickly understand the geological structure and analyze the specific information of aquifers, fissures, faults, caves and so on through the automatically generated curve diagrams and profiles on site.
5. Widely used: The instrument is widely used in plains, hills, mountains, plateaus, basins and other different terrains to quickly analyze the changes in the geological structure, determine the location of wells, aquifers and aquifer depth.
Natural electric field ground water detector is an advanced geological exploration instrument based on electromagnetic field theory and earth electric field theory. It is characterized by multi-channel and multi-mode data acquisition, automated analysis and processing, and strong anti-interference ability, etc. It can be widely used in geological exploration, hydrogeological investigation, environmental geological assessment and other fields. By observing the change rule of geodetic electric field, it can obtain the information of underground geologic body, and provide important technical support for the research of geologic structure, water search and other work.
