直升机TEM测量影响因素分析

doi:10.11720/wtyht.2021.1420

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Abstract

Helicopter TEM is widely used in mineral resources,hydrogeology and other fields.Summarizing the field survey process and analyzing the influencing factors of field survey have practical significance for future helicopter TEM flight operations.Based on the actual survey data from the two survey areas of Baiyangdian and Xiongxian in Xiong'an New Area,the authors analyzed the influencing factors in each link of the helicopter TEM field survey,investigated the model,and put forward suggestions in such aspects as the choice of take-off and landing points,the flight in different weathers,the flight height and speed,flight plan formulation,survey system stability monitoring and other aspects,thus providing reference experience for future helicopter TEM survey.

Key words： helicopter TEM Xiong'an New Area influencing factors of survey survey system stability

Received: 26 August 2020 Published: 01 March 2021

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	Articles by authors
	Xi-Peng SHAN
	Ru-Kuan XIE
	Sheng-Jun LIANG
	Xue-Zhong YU

Cite this article:

Xi-Peng SHAN,Ru-Kuan XIE,Sheng-Jun LIANG, et al. An analysis of the influencing factors of helicopter TEM survey[J]. Geophysical and Geochemical Exploration, 2021, 45(1): 178-185.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1420 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I1/178

Schematic diagram of helicopter TEM

Main performance index of the three helicopters

Location map of the landing points and the survey area in Xiongxian

Electromagnetic response at different flight altitudes of line L11890
a—average altitude of the loop is 40m;b—average altitude of the loop is 80m;c—average altitude of the loop is 120m

Electromagnetic response of measured data

AeroTEM system noise at different flight speed
a—hover;b—speed 30 knots;c—speed 40 knots;d—speed 50 knots

The flight plan of Baiyangdian area

Statistical graph of electromagnetic response of internal signal at high altitude in Baiyangdian area

Statistical graph of flights peak current in Baiyangdian area

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