A semi-aerial transient electromagnetic detection and receiving system dedicated unmanned aerial vehicle

Abstract

The invention discloses a special unmanned aerial vehicle for a semi-aerial transient electromagnetic detection and receiving system, comprising: a hollow frame, the hollow frame has a plurality of arms, and the end of each arm is provided with a power system, In the middle of the air-core frame is a coil storage compartment that accommodates split receiving coils; the power system includes coaxially distributed rotor shafts, insulating wings and double-layer motors, and the insulating wings are divided into upper and lower layers, which are connected to to the rotor shaft; the inner and outer motors of the double-layer motor rotate in the opposite direction, which is used to eliminate the electromagnetic signal interference generated when the inner rotor rotates, and the insulated wings will not generate electromagnetic interference due to cutting the magnetic induction line.

Description

technical field [0001] The invention belongs to the technical field of exploration, in particular to a special unmanned aerial vehicle for a semi-aerial transient electromagnetic detection and receiving system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The semi-aerial TEM method places the excitation source on the ground, and uses a manned or unmanned aerial vehicle to mount the receiving device to collect the transient response. This working method makes the semi-aerial TEM method integrate the ground TEM method and The advantages of the airborne transient electromagnetic method are that it has the characteristics of high signal-to-noise ratio, flexibility and high efficiency, and large detection depth, and can adapt to geological and terrain conditions such as alpine regions, high-altitude mountainous areas, deserts, Gobi, foreste...

AI Technical Summary

Problems solved by technology

[0007] 1. There is an error between the positioning of the aircraft and the positioning of the receiving coil, and the error is not fixed, because the speed of the aircraft will change when it turns, etc. during the flight, and this distance will also change, resulting in inaccurate positioning of the drone and the positioning of the coil, which will affect the later stage. Positioning Problems in Data Processing

[0008] 2. Mounting through a soft connection may easily cause shaking and swaying of the receiving coil, and the attitude of the coil will change greatly, resulting in continuous changes in the magnetic flux passing through the coil, which will eventually cause the quality of the collected data to deteriorate or even fail to collect the correct data. signals, it is necessary to add additional sensors to be able to collect these attitude information, and the analysis is complex

[0009] 3. The load of the UAV is limited. During the turning process of the aircraft, a large centrifugal force will be generated, so that the coil (heavier) mounted below will generate an outward and downward force, and will deviate from the relatively fixed position during smooth flight. position, once the turn is too sharp, it is easy to cause the plane to fall upside down and crash

[0010] 4. Heavy objects mounted under the aircraft are likely to cause crashes due to hanging on external objects such as trees

[0011] 5. Heavy objects are mounted under the aircraft, the operation is very complicated, the requirements for the operator are very high, and accidents are prone to occur

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