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Aviation geomagnetic vector detection apparatus

A detection device and geomagnetic technology, which is applied in the direction of measuring device, geophysical measurement, electric/magnetic exploration, etc., can solve problems not involved in vector measurement, etc., and achieve the effect of fast speed, small multi-solution, and elimination of data deviation

Inactive Publication Date: 2012-06-27
JILIN UNIV
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Problems solved by technology

[0014] In March 2005, "Northeast Earthquake Research" "Research on Orientation of Digital Three-Component Fluxgate Magnetic Variable Instrument", analyzed the orientation standard, orientation stability and factors affecting orientation of fluxgate magnetic variable instrument. For Orientation Operational Criteria and Orientation Expectation Criteria, issues such as actual recording accuracy are discussed, but vector measurements are not covered

Method used

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  • Aviation geomagnetic vector detection apparatus
  • Aviation geomagnetic vector detection apparatus
  • Aviation geomagnetic vector detection apparatus

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and embodiment for further detailed description:

[0031] The aeronautical geomagnetic vector detection device is connected with the GPS antenna 5 through the three-component magnetic field sensor 1 through the three-component magnetic field receiving circuit 2 and the inertial navigation controller 4, the inertial navigation sensor 3 is connected with the processing system 6 through the inertial navigation controller 4, and the three-component The magnetic field receiving circuit 2 is connected with the main processing system 6, and the main processing system 6 is connected with the power conversion.

[0032] The three-component magnetic field receiving circuit 2 is connected with the acquisition circuit, the amplification filter II, the feedback selection, the gain selection, the amplification filter I, the probe drive circuit, the data memory, the main processing system 6 and the GPS antenna 5 respectively by the single-c...

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Abstract

The invention relates to an aviation geomagnetic vector detection apparatus. The apparatus is characterized in that: a three-component magnetic field sensor is connected with a GPS antenna through a three-component magnetic field receiving circuit and an inertial navigation controller; an inertial navigation sensor is connected with a processing system through the inertial navigation controller; the three-component magnetic field receiving circuit is connected with a host processing system; the host processing system is connected with source transformation. Through mutually orthogonal geomagnetic three components (X,Y, Z), each parameter of an earth magnetic field can be deduced and calculated. Compared to a single component or total field measurement, an obtained information content is more. There are fewer factors which can be influenced during interpretation and a multiplicity is small. The aviation geomagnetic vector detection has a fast speed and is almost not restricted by landforms and landscape. According to the invention, by using a three-component data and attitude data acquisition hardware synchronization method, a data deviation generated by non-synchronization of the three-component data and the attitude data caused by the fast speed of an aircraft can be eliminated.

Description

Technical field: [0001] The invention relates to an aeronautical geomagnetic vector detection device used in magnetic prospecting in the field of geophysical prospecting instruments. Background technique: [0002] Magnetic survey is used for general survey of oil and natural gas and other minerals, and plays an important role in geological survey, mineral survey and earth science research, and is a major method of geophysical prospecting. [0003] Various geological bodies can produce magnetic fields of different strengths and weaknesses, which are superimposed on the normal magnetic field of the earth and are called magnetic anomalies. Magnetic prospecting is to use a magnetometer to measure the magnetic anomaly according to the specified survey line, grasp its distribution law and explain the anomaly, so as to achieve the purpose of prospecting and solving geological problems. [0004] Describing the characteristics of the earth's magnetic field, like studying other magne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/40
Inventor 王一宗发保赵瑜秦佩安占峰高游赵静王君
Owner JILIN UNIV
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