Double-shaft non-magnetic rotary table for geomagnetic surveying and mapping satellite vector magnetometer external field calibration
A non-magnetic turntable and magnetometer technology, applied in geophysical measurement, measurement device, electrical/magnetic exploration, etc., to achieve the effects of reduced size, reduced strength, and low cost
Active Publication Date: 2022-06-07
AEROSPACE DONGFANGHONG SATELLITE
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Problems solved by technology
[0005] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a dual-axis non-magnetic turntable and method for external field calibration of geomagnetic surveying and mapping satellite vector magnetometers, and to solve the problem of high-precision magnetic measurement and optical integration during external field calibration Platform attitude adjustment problem
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[0036] The present invention is further described below in conjunction with the accompanying drawings.
[0037] When the present invention is improved on the existing method, there are still certain constraints: for example, the vector magnetometer is installed at one end of the high-precision magnetometry integration platform, and the rotary table should realize the two axes of high-precision movement and locking function around the center of the vector magnetometer; Taking into account test accessories such as cables, the load carrying quality of the turntable is considered according to 10kg; In order to meet the high-precision magnetic optical integration platform field calibration environment, the calibration site is generally in the mountain forest area, there is no crane and other lifting, transportation equipment, the requirements of the magnetic rotary table structure is simple, portable, weight can meet the needs of two people handling, with leveling function. Therefore, ...
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The invention relates to a portable double-shaft non-magnetic rotary table for geomagnetic surveying and mapping satellite vector magnetometer external field calibration, which has the advantages of no magnetism, no oil, compact structure, portability, low cost, flexible operation and the like through a reasonable structure. Attitude adjustment of the optical integrated platform integrating one vector magnetometer and three high-precision star sensors in an external field calibration state is realized, namely attitude rotation adjustment around a vertical axis and a horizontal axis of the center of the measured vector magnetometer is realized. In the field of geomagnetic surveying and mapping satellites, the attitude adjustment problem of high-precision magnetic survey optical integrated platform external field calibration is solved for the first time. The external field calibration device is simple in structure and convenient to operate, can be used for external field calibration of a geomagnetic surveying and mapping satellite high-precision magnetic measurement optical integrated platform, and can also be used for calibration and inspection of magnetic measurement equipment, magnetic navigation equipment or other attitude measurement equipment after design parameters are adjusted according to different design requirements.
Description
Technical field [0001] The present invention relates to a biaxial non-magnetic turntable for geomagnetic mapping satellite vector magnetometer field calibration and a method of attitude adjustment using the device. Background [0002] High-precision vector magnetic field mapping on the geomagnetic mapping satellite requires the integration of 1 vector magnetometer and 3 high-precision star sensors on an integrated rigid platform to form a high-precision magnetic optical integration platform, using the inertial spatial pointing measurement capability of the star sensor to realize the pointing measurement pointed by the vector magnetometer through coordinate conversion. On the ground, it is necessary to install the high-precision magnetic measurement optical integration platform on a suitable two-axis non-magnetic rotary table under the natural conditions of the field with a good magnetic environment, and at the same time carry out the calibration measurement of the star sensor and...
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IPC IPC(8): F16M11/12F16M11/18F16M11/22G01V3/40
CPCF16M11/12F16M11/18F16M11/22G01V3/40Y02A90/30
Inventor 刘江苗园青辛强韩建斌程炳钧于春宇
Owner AEROSPACE DONGFANGHONG SATELLITE