动力滑翔机航磁测量系统的研发与应用

doi:10.11720/wtyht.2020.1276

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Abstract

This paper gives an account of the development and application of the aeromagnetic measuring system of a power glider equipped with cesium optical pump magnetometer. The model selection, support modification, magnetic interference elimination, aeromagnetic system integration and other aspects are fully studied, and the integrated aeromagnetic system performance indexes are tested. On the whole, the indexes accord with the technical specification for aviation magnetic survey DZ/T 0142-2010 (hereinafter referred to as the aeromagnetic specification) requirements. The production operation was conducted, and a comparison was made between the aeromagnetic survey results and the previous aeromagnetic results; an analysis was conducted in the aspects of economy, applicability and green environmental protection. It is shown that the system is an effective method in the low-level aeromagnetic survey, and the use of the system to carry out large scale aeromagnetic survey and geomagnetic survey has obvious advantages.

Key words： power glider seromagnetic survey integration and modification test and application

Received: 15 May 2019 Published: 03 March 2020

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	Xiang-Ping YUE
	Jian ZHANG

Cite this article:

Xiang-Ping YUE,Jian ZHANG. The development and application of aeromagnetic measurement system for power glider[J]. Geophysical and Geochemical Exploration, 2020, 44(1): 171-178.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1276 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I1/171

Frame of aeromagnetic system

Main performance parameters of power glider

Aircraft static magnetic field distribution (a) and dynamic magnetic field distribution (b)

Design drawing of hang-glider aeromagnetic system support
1—cesium optical pump magnetic probe;2—fluxgate three component sensor;3—real time differential GPS antenna;4—navigation display;5—altimeter;6—data collector,compensator

Glider flight dynamics test

The aeromagnetic system of a powered glider
1—cesium optical pump magnetic probe;2—fluxgate three component sensor;3—real-time differential GPS antenna;4—navigation display;5—altimeter;6—data collector;7—compensator

Magnetic compensation simulation experimental model

Magnetic compensation simulation experiment graph

Verify the magnetic complement flight graph

Standard deviation before and after magnetic compensation

Curve of magnetometer steering difference test

Curve of stability test of magnetic probe

Test curve of magnetometer step response rise time

Magnetic fourth order difference static noise distribution diagram

Positioning accuracy distribution diagram

The 1∶10 000 aeromagnetic △T isoline map (a) is the same as the previous 1∶50 000 aeromagnetic isoline map (b)

Comparison of aeromagnetism and geomagnetism at different scales

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