Background analysis:

In recent decades, the mine prospecting work in China has been rapidly developing, the scale is expanding, and the technical level is getting higher. However, some ore bodies are buried deep and it is not easy to find with ground prospecting technology. Therefore, the use of drilling wells with various detection instruments for prospecting has emerged. As a prospecting instrument with stable performance, accurate measurement, fast response, easy operation and maintenance, Guochuang Well Three-component Magnetometer can record the value of the three-axis magnetic field intensity changing with depth in the geodetic coordinate system, and is compatible with the existing left-handed or right-handed magnetic method processing software for data inversion, and can establish relevant models of magnetic anomalous veins, existence, depth of burial and ore body direction to determine the position of ore body.

 Functions:

Guochuang Well Three-component Magnetometer is used to survey the underground ore body, measure the three-component magnetic field, calculate the total field and draw the vector diagram, and determine the position of ore body through the direction of the vector diagram.

 Principle:

The magnetic anomaly target contains materials or currents with ferromagnetic characteristics (such as iron, cobalt, nickel, etc.). We use Guochuang Micro-magnetic Basic Sensor Array to detect the magnetic anomaly information caused by the ferromagnetic target. According to the corresponding model algorithm, the related feature information of ferromagnetic target can be determined. The intensity of the magnetic field is inversely proportional to the cubic target distance, H∝M/R3. The rocks and ores in nature have different magnetic parameters, which can produce different magnetic fields. They cause the earth's magnetic field to change in local areas and geomagnetic anomalies. Guochuang Well Three-component Magnetometer is used to identify and study these magnetic anomalies, and then the magnetic ore bodies and studied geological structures can be found.

 

 Technical solution:

The well three-component magnetometer is mainly composed of Guochuang Micro-magnetic Basic Sensors as the key core equipment. It can use the magnetic anomaly feature distribution of ferromagnetic ore in the well, adopt a special inversion algorithm, and combine other detection methods to analyze the types, buried depth, and direction, etc. of minerals. It can be manufactured portable for easy operation in the well.

 

 The main components of the system:

1.Well three-component magnetometer is composed of micro-magnetic basic sensor array, communication module, digital signal unit, etc.; 

2. Well three-component magnetometer can achieve real-time online collection of geomagnetic data in the well.

3. Related algorithms include: environmental noise suppression and processing of magnetic anomalous targets small signal;

4. Data processing: collection of magnetic data information;

5. Terminal controller: display the working status and parameter information of the well three-component magnetometer.