High-precision double-way ground voice frequency electromagnetic physical geography prospecting instrument
A dual-channel, high-precision technology, applied in electric/magnetic exploration, geophysical measurement, instruments, etc., can solve the problems of unguaranteed accuracy and precision of measurement data, uncontrollable electric field frequency stability, limited application and promotion, etc. , to achieve the effect of fast measurement speed, wide application range and light instrument
Active Publication Date: 2013-07-03
SHANGHAI AIDU ENERGY TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] 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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] In the present invention, the working principle involved also includes, in combination with the actual use situation and the basic formula of audio frequency magnetotelluric resistivity In the formula, ρ is the apparent resistivity, Ex is the electric field strength in the X-axis direction, and Hy is the magnetic field strength perpendicular to the X-axis direction; the apparent resistivity ρ can be calculated by measuring the electric field strength Ex and magnetic field strength Hy at a certain frequency; the frequency f It is inversely proportional to the apparent resistivity ρ, and the study of the relationship between them achieves the purpose of studying different depths. From the formula, to accurately calculate the apparent resistivity ρ, the accuracy of the frequency f, the electric field strength Ex and the magnetic field strength Hy must be ensured. Since the natural electromagnetic field will change with time, two values are used for the electric field str...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More 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
technical field [0001] 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 [0002] 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 methods ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/08
Inventor 陈龙
Owner SHANGHAI AIDU ENERGY TECH