Design method of airborne geophysical helicopter

Abstract

The present application belongs to the field of aircraft technology, and discloses a design method of an aerial geophysical prospecting helicopter, comprising the following steps: when the helicopter is configured for an aerial magnetic task, an aerial magnetometer and a magnetic force probe rod are arranged on the helicopter, and a double seat is arranged on the side of the aerial magnetometer; when the helicopter is configured for an aerial magnetic gravity combination task, the double seat on the side of the aerial magnetometer is removed, and an aerial gravity meter is arranged instead; when the helicopter is configured for an aerial magnetic radioactivity combination task, the magnetic force probe rod is retained, the original aerial magnetometer is removed, and an aerial magnetometer and a crystal box are newly arranged in the cabin of the helicopter; when the helicopter is configured for an aerial electromagnetic task, the magnetic force probe rod and the aerial magnetometer are removed, and an aerial electromagnetic coil is hung outside to carry out exploration work, and an aerial electromagnetic main machine cabinet is arranged in the cabin of the helicopter, so that multiple geophysical prospecting configurations can be considered and switched flexibly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of aircraft technology, and particularly relates to a design method of an aerial geophysical prospecting helicopter. BACKGROUND

[0002] Aerial geophysical prospecting started in the 1930s, which is a kind of geophysical prospecting method for detecting changes of various geophysical fields during flight by equipping special geophysical prospecting instruments on an airplane, and researching and finding underground geological structures and mineral resources. Aerial geophysical prospecting has a comprehensive development trend, which is used to improve the speed of calculation and arrangement of observation data and the level of analysis and inference. Aerial geophysical prospecting mainly includes aerial magnetic method, aerial radioactivity method, aerial electromagnetic method, aerial gravity method, etc. A small airplane with good low-speed performance is generally used for aerial geophysical prospecting, and the airplane is required to have good climbing performance, small turning radius, flexible operation, good low-altitude and ultra-low-altitude performance, so as to adapt to the conditions of complex mountainous and hilly terrains. The airplane should have positions convenient for installing various detection instruments, so as to ensure that the magnetic field, electric field and radioactivity interference on different instruments are minimized. The airplane should also be equipped with a navigation and radio positioning system to ensure that the airplane makes accurate scanning flight in the specified airspace.

[0003] At present, the aerial geophysical prospecting aircraft only carries out corresponding modification design for a single geophysical prospecting method, and cannot achieve overall consideration and flexible switching of multiple geophysical prospecting configurations. SUMMARY

[0004] The technical problem solved by the present application: the present application provides a design method of an aerial geophysical prospecting helicopter, which is used to solve the problem that the current aerial geophysical prospecting aircraft only carries out corresponding modification design for a single geophysical prospecting method, and cannot achieve overall consideration and flexible switching of multiple geophysical prospecting configurations.

[0005] The technical scheme of the present application:

[0006] The present application provides a design method of an aerial geophysical prospecting helicopter, which completes the following four measurement tasks according to needs: aerial magnetic force measurement task, aerial magnetic force gravity combination measurement task, aerial magnetic force radioactivity combination measurement task, and aerial electromagnetic measurement task, determines that the aerial geophysical prospecting helicopter has four task configurations: aerial magnetic force task configuration, aerial magnetic force gravity combination task configuration, aerial magnetic force radioactivity combination task configuration, and aerial electromagnetic task configuration, and the method comprises the following steps:

[0007] S1, when the helicopter is in the aerial magnetic force task configuration, an aerial magnetic force instrument and a magnetic force probe rod are arranged on the helicopter, and a double-seat chair is arranged on the side of the aerial magnetic force instrument for operating personnel to take the machine;

[0008] S2, when the helicopter is in the aerial magnetic force gravity combination task configuration, the double-seat chair on the side of the aerial magnetic force instrument is removed based on the aerial magnetic force task configuration, and an aerial gravity instrument is arranged instead;

[0009] S3, when the helicopter is in the airborne magnetic radiation combined task configuration, on the basis of the airborne magnetic task configuration, the magnetic force probe rod is retained, the original airborne magnetic instrument is disassembled, and the airborne magnetic instrument and the crystal box are rearranged in the helicopter cabin;

[0010] S4, when the helicopter is in the airborne electromagnetic task configuration, on the basis of the airborne magnetic task configuration, the magnetic force probe rod and the airborne magnetic instrument are disassembled, and the airborne electromagnetic coil is hung outside to carry out exploration work, and the airborne electromagnetic main machine cabinet is arranged in the helicopter cabin.

[0011] Further, the method further comprises:

[0012] S5, an environmental application task auxiliary device cooperating with the four task configurations of the helicopter is arranged, and the environmental application task auxiliary device at least comprises: a sand prevention device, an emergency floating device, a loudspeaker and a search light.

[0013] Further, in S1, the magnetic force probe rod is connected with the helicopter through three points; the three mounting points of the magnetic force probe rod are a front joint, a middle joint and a rear joint along the left longitudinal beam of the helicopter in sequence;

[0014] The front joint is designed on the connecting belt plate of the left longitudinal beam, is a machined aluminum alloy T-shaped joint, is riveted, has two bolt holes, and is screwed with the magnetic force probe rod; the middle joint is connected to the front crossbar of the landing gear; and the rear joint is connected to the rear crossbar of the landing gear.

[0015] The middle joint and the rear joint are shared joints of the magnetic force probe rod and the external hanging device.

[0016] Further, in S1, the airborne magnetic instrument is arranged at the rear of the helicopter cabin, two U-shaped reinforcing assemblies are arranged under the floor of the helicopter cabin for bearing the airborne magnetic main machine cabinet of the airborne magnetic instrument, and a traveling nut plate is arranged on the two U-shaped reinforcing assemblies.

[0017] Further, when the helicopter performs the airborne magnetic gravity combined task, the airborne magnetic instrument, the magnetic force probe rod and the airborne gravity instrument are needed.

[0018] In S2, the airborne gravity instrument is mounted on one side of the airborne magnetic instrument in the passenger cabin of the helicopter, the airborne gravity instrument is screwed with the two U-shaped reinforcing assemblies through a gravity instrument adapter plate, the airborne gravity instrument is screwed with the gravity instrument adapter plate, and the airborne gravity instrument is connected with the floor of the helicopter by means of the gravity instrument adapter plate.

[0019] Further, when the helicopter performs the airborne magnetic radiation combined task, the airborne magnetic instrument and two crystal boxes are needed.

[0020] In S3, the airborne magnetometer and the two crystal boxes are screwed to the rear side of the cabin through a combined mounting plate, the combined mounting plate is bolted to the two U-shaped reinforcing components, the two crystal boxes are fixed to the mounting bottom plate of the combined mounting plate, and the airborne magnetometer is fixed to the mounting upper plate of the combined mounting plate.

[0021] Further, when the helicopter performs an airborne electromagnetic task, an avionics main cabinet and an airborne electromagnetic coil are needed.

[0022] In S4, the helicopter provides an external suspension device, the airborne electromagnetic coil is suspended below the helicopter through a suspension cable, the avionics main cabinet is installed in the passenger cabin, and the avionics main cabinet is connected to the floor of the helicopter through an adapter plate.

[0023] The technical scheme of the present application utilizes overall comprehensive configuration design technology, realizes the ability of modifying four task configurations of airborne magnetic force measurement, airborne magnetic force and gravity combined measurement, airborne magnetic force and radioactivity combined measurement, and airborne electromagnetic measurement on one helicopter, and each task configuration has quick switching capability, the task equipment is independently arranged and does not affect each other, the modified helicopter has the ability to carry a single airborne magnetometer, an airborne gravity meter, a magnetic force probe rod, a crystal box, a remote sensing instrument or multiple different instrument combinations, improves the efficiency of completing airborne geophysical and remote sensing professional measurement, and meets the user's demand with the smallest design and manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an airborne magnetic force task configuration schematic diagram;

[0025] Figure 2 It is an airborne magnetic force and gravity combined task configuration schematic diagram;

[0026] Figure 3 It is an airborne magnetic force and radioactivity combined task configuration schematic diagram;

[0027] Figure 4 It is an airborne electromagnetic task configuration schematic diagram;

[0028] Figure 5 It is a helicopter airborne geophysical general platform design schematic diagram;

[0029] Figure 6 It is a magnetic force probe rod installation point position schematic diagram;

[0030] Figure 7 It is a magnetic force probe rod installation joint schematic diagram;

[0031] Figure 8 It is an airborne magnetometer installation schematic diagram;

[0032] Figure 9 It is a floor U-shaped reinforcing component schematic diagram;

[0033] Figure 10 is a schematic view of a floating nut plate;

[0034] Figure 11 is a schematic view of an airborne magnetic and gravity measurement configuration;

[0035] Figure 12 is a schematic view of a gravity meter adapter plate installation;

[0036] Figure 13 is a schematic view of an airborne magnetic and radiation measurement configuration;

[0037] Figure 14 is a schematic view of a combined installation plate structure;

[0038] Wherein, 1-magnetic force probe rod, 2-airborne magnetic force meter, 3-airborne gravity meter, 4-crystal box, 5-combined installation plate, 6-outer hanging probe rod common joint, 7-outer hanging device, 8-airborne electromagnetic coil, 9-emergency floating device, 10-searching light, 11-loudspeaker, 12-sand prevention device, 13-airborne swing camera, 14-front joint, 15-middle joint, 16-rear joint, 17-probe rod connecting rod, 18-U-shaped reinforcing assembly, 19-floating nut plate, 20-aircraft main engine cabinet, 21-gravity meter adapter plate, 22-double seat. DETAILED DESCRIPTION

[0039] The technical scheme of the present application will be described in detail below with reference to the drawings.

[0040] The embodiment of the present application provides a design method of an airborne geophysical helicopter, the airborne geophysical helicopter completes the following four measurement tasks according to needs: an airborne magnetic force measurement task, an airborne magnetic force and gravity combined measurement task, an airborne magnetic force and radiation combined measurement task, and an airborne electromagnetic measurement task, and has four corresponding task configurations: an airborne magnetic force task configuration, an airborne magnetic force and gravity combined task configuration, an airborne magnetic force and radiation combined task configuration, and an airborne electromagnetic task configuration.

[0041] The method comprises:

[0042] S1, when the helicopter is in the airborne magnetic force task configuration, a magnetic force probe rod 1 and an airborne magnetic force meter 2 are arranged on the helicopter, a double seat 22 is arranged on one side of the airborne magnetic force meter 2 for operating personnel to take the machine, and reference is made to Figure 1 .

[0043] S2, when the helicopter is in the airborne magnetic force and gravity combined task configuration, the double seat 22 on one side of the airborne magnetic force meter 2 is removed in the airborne magnetic force task configuration, and an airborne gravity meter 3 is arranged instead, reference is made to Figure 2 .

[0044] S3, when the helicopter is configured for airborne magnetic and radioactive combination task, on the basis of airborne magnetic task configuration, the magnetic force probe 1 is retained, the original airborne magnetometer is disassembled, the airborne magnetometer 2 and the crystal box 4 are rearranged in the helicopter cabin, and the reference Figure 3 ;

[0045] S4, when the helicopter is configured for airborne electromagnetic task, on the basis of airborne magnetic task configuration, the magnetic force probe 1 and the airborne magnetometer 2 are disassembled, and the airborne electromagnetic coil 8 is hung by the external hanging device 7 to carry out exploration work, the airborne electromagnetic main machine cabinet 20 is arranged in the helicopter cabin, the external hanging device 7 is fixedly connected with the magnetic force probe 1 through the external hanging probe shared connector 6, and the reference Figure 4 .

[0046] Further, the method further comprises:

[0047] S5, an environmental application task auxiliary device cooperating with the four task configurations of the helicopter is arranged, as shown in Figure 5 The environmental application task auxiliary device at least includes: an emergency floating device 9, a search light 10, a loudspeaker 11 and a sand prevention device 12.

[0048] Specifically, in S1, as shown in Figure 6 and Figure 7 The magnetic force probe is rigidly connected with the helicopter through three points; the three mounting points of the magnetic force probe are front connector 14, middle connector 15 and rear connector 16 along the left longitudinal beam of the helicopter in sequence;

[0049] The front connector 14 is designed on the connecting belt plate of the left longitudinal beam, is a machined aluminum alloy T-shaped connector, is riveted, has two bolt holes, and is screwed with the magnetic force probe; the middle connector 15 is connected to the front crossbar of the landing gear; and the rear connector 16 is connected to the rear crossbar of the landing gear.

[0050] The middle connector 15 and the rear connector 16 are shared connectors of the magnetic force probe and the external hanging device.

[0051] Specifically, in S1, as shown in Figure 8 , 9 , 10, the airborne magnetometer is arranged at the rear of the helicopter cabin, two U-shaped reinforcing assemblies 18 are arranged under the cabin floor for bearing the airborne magnetometer, a movable nut plate 19 is arranged on the two U-shaped reinforcing assemblies 18.

[0052] Specifically, when the helicopter performs airborne magnetic and gravity combination task, the magnetic force probe 1, the airborne magnetometer 2 and the airborne gravity meter 3 are needed.

[0053] In S2, the airborne gravimeter 3 is installed on one side of the helicopter cabin airborne magnetometer 2, the airborne gravimeter 3 is screwed with the two U-shaped reinforcing components 18 through the gravimeter adapter plate 21, the airborne gravimeter 3 is screwed with the gravimeter adapter plate 21, and the airborne gravimeter 3 is connected with the helicopter floor by the gravimeter adapter plate 21, as shown in Figure 11 and Figure 12 as shown.

[0054] Specifically, when the helicopter performs the airborne magnetic radiation combined task, the airborne magnetometer 2 and the two crystal boxes 4 are needed;

[0055] In S3, the airborne magnetometer 2 and the two crystal boxes 4 are screwed and installed on the rear side of the cabin through the combined mounting plate 5, the combined mounting plate 5 is bolted with the two U-shaped reinforcing components 18, the two crystal boxes 4 are fixed on the mounting bottom plate of the combined mounting plate 5, and the airborne magnetometer 2 is fixed on the mounting upper plate of the combined mounting plate 5, as shown in Figure 13 as shown. Figure 14 as shown.

[0056] Specifically, when the helicopter performs the airborne electromagnetic task, the airborne power host cabinet 20 and the airborne electromagnetic coil 8 are needed;

[0057] In S4, the helicopter provides the external hanging device 7, the airborne electromagnetic coil 8 is hung below the helicopter through the hanging cable, the airborne power host cabinet 20 is installed in the cabin, and the airborne power host cabinet 20 is connected with the helicopter floor through the adapter plate, as shown in Figure 4 as shown.

[0058] Specifically, the airborne swing camera 13 is fixed at the tail beam and the fuselage butt joint frame of the helicopter through the camera support, as shown in Figure 4 as shown.

[0059] The embodiment of the present application also provides an airborne geophysical helicopter, which is designed by the method and has four task configurations for completing the following four measurement tasks: the airborne magnetic force measurement task, the airborne magnetic force and gravity combined measurement task, the airborne magnetic force and radiation combined measurement task, and the airborne electromagnetic measurement task.

[0060] When the helicopter is in the airborne magnetic force task configuration, the magnetic force probe rod 1 and the airborne magnetometer 2 are arranged on the helicopter, and a double seat 22 is arranged on the left side of the airborne magnetometer 2 for the operating personnel to take the helicopter.

[0061] When the helicopter is in the airborne magnetic force and gravity combined task configuration, the double seat 22 on the left side of the airborne magnetometer 2 is removed and replaced by the airborne gravimeter 3 on the basis of the airborne magnetic force task configuration.

[0062] When the helicopter is configured for airborne magnetic radioactive combination task, on the basis of airborne magnetic task configuration, the magnetic force probe 1 is retained, the original airborne magnetometer 2 is disassembled, and the airborne magnetometer 2 and the crystal box 4 are rearranged in the helicopter cabin;

[0063] When the helicopter is configured for airborne electromagnetic task, on the basis of airborne magnetic task configuration, the magnetic force probe 1 and the airborne magnetometer 2 are removed, and the airborne electromagnetic coil 8 is hung by the external hanging device 7 to carry out exploration work, and the airborne electromagnetic main machine cabinet 20 is arranged in the helicopter cabin.

[0064] On the basis of the airborne geophysical general platform, the helicopter overall comprehensive design technology is used, the multi-task configuration flexible switching design method based on task requirements is created, the general installation design means such as the general installation plate of the airborne magnetometer and the crystal box, the external hanging device and the common joint of the magnetic force probe are invented, the ability of carrying a single airborne magnetometer, an airborne gravity meter, a magnetic force probe, a remote sensing instrument or a combination of multiple different instruments is realized, the airborne geophysical and remote sensing professional measurement is completed, and the survey efficiency is greatly improved. The design method can be directly applied to the modification design of other helicopter multi-task equipment switching.

[0065] The embodiment of the present application provides a modification design compatible with four kinds of airborne geophysical systems on a light helicopter, and factors such as weight and gravity center, electromagnetic compatibility, man-machine efficiency and flight characteristics are comprehensively considered to meet the requirements of helicopter weight and gravity center and aerodynamic layout design, and four kinds of task configurations of the airborne geophysical measurement system are formed: the airborne magnetic measurement task configuration, the airborne magnetic and gravity measurement combination task configuration, the airborne magnetic and magnetic measurement combination task configuration, and the airborne electromagnetic measurement task configuration. Each task configuration has rapid switching capability, and the task equipment is independently arranged and does not affect each other. The modified helicopter can carry a single airborne magnetometer, an airborne gravity meter, a magnetic force probe, a remote sensing instrument or a combination of multiple different instruments, improves the ability and efficiency of completing airborne geophysical and remote sensing professional measurement, and the main configuration states are as follows:

[0066] 1. When the helicopter is in the airborne magnetic measurement configuration, the magnetic force probe 1 and the airborne magnetometer 2 are arranged on the helicopter, according to the needs of the operating environment, the corresponding environmental kit (such as the emergency floating device 9, the sand prevention device 12 and the like) or other task kit (such as the loudspeaker 11, the search light 10) is selected, and a set of double seats 22 is reserved on the left side of the airborne magnetometer for the operating personnel to ride.

[0067] 2. When the helicopter is in the airborne magnetic and gravity measurement configuration, the double seats on the left side of the airborne magnetometer are removed based on the airborne magnetic measurement configuration, and the airborne gravity meter 3 is arranged. The airborne gravity meter 3 needs uninterrupted power supply on the ground during the measurement task (during the helicopter landing and shutdown period), and the gravity meter ground power socket is installed at the rear of the helicopter for convenient maintenance.

[0068] 3. When the helicopter is in the configuration of airborne magnetic force and magnetic release measurement, the magnetic force probe 1 is retained on the basis of the configuration of airborne magnetic force measurement, the cabin is rearranged with the airborne magnetometer 2 and the crystal box 4, the original screw-connected airborne magnetometer 2 is disassembled, the airborne magnetometer 2 and the crystal box 4 are jointly arranged in the cabin of the helicopter by using the combined installation plate 5 of the airborne magnetometer and the crystal box.

[0069] 4. When the helicopter is in the configuration of airborne electromagnetic measurement, the magnetic force probe 1 and the airborne magnetometer 2 are disassembled, and the airborne electromagnetic coil 8 is hung by the external hanging device 7, and the cabin is arranged with the airborne electromagnetic main machine cabinet 20.

[0070] 5. The airborne sweep camera 13 can be used in optical form according to the task requirement, and four task configurations are matched to increase the surveying precision.

[0071] The four task configurations are compatible with the arrangement of the magnetic force probe 1, the airborne magnetometer 2, the airborne gravimeter 3, the crystal box 4, the airborne electromagnetic coil 8 and the airborne sweep camera 13, the task devices are independently arranged and do not affect each other, and can be flexibly disassembled and assembled, and the specific installation forms are as follows:

[0072] Magnetic force probe installation

[0073] The airborne magnetic force measurement configuration uses the magnetic force probe to carry the magnetometer probe, and the magnetic force probe 1 is connected with the helicopter through three points. The installation points of the magnetic force probe 1 structure are three points along the left longitudinal beam of the helicopter, which are the front joint 14, the middle joint 15 and the rear joint 16. The front joint 14 is designed on the connecting belt plate of the left longitudinal beam, which is a machine-made aluminum alloy T-shaped joint, and is connected in the form of riveting, and has two bolt holes which are screwed with the probe connecting rod 17; the middle joint 15 is connected to the front crossbar of the landing gear; and the rear joint 16 is connected to the rear crossbar of the landing gear. The middle joint 15 and the rear joint 16 are shared joints for the magnetic force probe and the external hanging device, which are specially designed with machine-made hard aluminum joints screwed with the probe connecting rod 17, and can meet the needs of compatible arrangement of the magnetic force probe and the external hanging device.

[0074] Airborne magnetometer installation

[0075] The airborne magnetometer 2 is arranged at the rear of the helicopter cabin, two U-shaped reinforcing components 18 are added under the cabin floor for carrying the airborne magnetometer 2, the airborne gravimeter 3 and the crystal box 4, and the floating nut plate 19 (the floating support nut is installed on the plate) is arranged on the two U-shaped reinforcing components 18, so as to facilitate the quick disassembly and replacement of the equipment and the nut.

[0076] Airborne gravimeter installation

[0077] The aerial magnetic and gravity combined measurement configuration is composed of an aerial magnetic measurement configuration and an aerial gravimeter. The aerial gravimeter 3 is installed on the left side of the aerial magnetic instrument 2 in the passenger cabin of the helicopter, and the aerial gravimeter 3 is screwed with the gravimeter adapter plate 21 (an aluminum part) and the two U-shaped reinforcing components 18, the aerial gravimeter 3 is screwed with the gravimeter adapter plate 21, and the aerial gravimeter 3 is connected with the floor of the helicopter firmly by the gravimeter adapter plate 21.

[0078] Aerial magnetic crystal box installation

[0079] The aerial magnetic measurement system is composed of an aerial magnetic measurement system and a crystal box, and the aerial magnetic instrument 2 and the two crystal boxes 4 are screwed and installed on the rear side of the cabin through the combined mounting plate 5 (an aluminum part). The combined mounting plate 5 is bolted with the two U-shaped reinforcing components 18. The crystal box 4 and the aerial magnetic instrument 2 are screwed and installed with the combined mounting plate 5.

[0080] Aerial electromagnetic measurement system installation

[0081] The aerial electromagnetic measurement system is composed of an aerial electromagnetic coil and an aerial main machine cabinet 20. The aerial electromagnetic coil 8 of the aerial electromagnetic measurement system is hung under the helicopter through a hanging cable, the helicopter provides an external hanging device 7, and the power supply required by the equipment is met. The aerial main machine cabinet 20 is installed in the passenger cabin, and an adapter plate for connecting the aerial main machine cabinet 20 with the floor of the helicopter is made, and the aerial main machine cabinet 20 is connected with the floor of the helicopter firmly by the adapter plate.

[0082] Aerial swing camera installation

[0083] The aerial scanning camera is realized by integrating a large-format aerial camera with a scanning machine, and adopts a modular design, mainly including a camera module, a control module, a flight control tablet computer and a fast vision display. The aerial swing camera 13 is arranged near the tail beam and the fuselage butt joint frame, as shown in Figure 4 .

[0084] The embodiment of the present application utilizes an existing light helicopter platform (such as an AC311A helicopter), is based on system engineering theory, comprehensively captures the use requirements of geophysical users, creates a hierarchical system decomposition method of "task requirement-configuration selection-equipment arrangement", invents a variety of aerial geophysical configuration overall integrated design means based on the helicopter platform, arranges special aerial geophysical task equipment, and reasonably arranges sand prevention devices, external hanging devices, emergency floating and other environmental application task auxiliary equipment, forms an aerial geophysical general platform with the ability to perform various geological exploration tasks in plains, deserts, plateaus, mountains and oceans, and the design method can be directly applied to the modification design of other helicopter aerial geophysical platforms.

[0085] The technical scheme of the present application utilizes overall comprehensive configuration design technology to realize the ability of modifying four task configurations of air magnetic force measurement, air magnetic force and gravity measurement, air magnetic force and radioactive measurement, and air electromagnetic measurement on a helicopter, and the quick switching ability between each task configuration, and the independent arrangement of task equipment without affecting each other, and the ability of the modified helicopter to carry a single air magnetic force meter, an air gravity meter, a magnetic force probe rod, a remote sensing instrument or a combination of multiple different instruments, thereby improving the efficiency of completing air geophysical and remote sensing professional measurement and meeting user needs with minimum design and manufacturing cost.

Claims

1. A method of designing an airborne geophysical helicopter, characterized in that, According to the following four measurement tasks to be completed: the aerial magnetic force measurement task, the aerial magnetic force gravity combination measurement task, the aerial magnetic force radioactivity combination measurement task, the aerial electromagnetic measurement task, the aerial geophysical helicopter is provided with four task configurations: the aerial magnetic force task configuration, the aerial magnetic force gravity combination task configuration, the aerial magnetic force radioactivity combination task configuration, and the aerial electromagnetic task configuration, and the method comprises: S1, when the helicopter is in the aerial magnetic force task configuration, an aerial magnetic force instrument and a magnetic force probe rod are arranged on the helicopter, and a double-seat chair is arranged on the side of the aerial magnetic force instrument for operating personnel to take the helicopter; in S1, the magnetic force probe rod is connected with the helicopter through three points; the three mounting points of the magnetic force probe rod are a front joint, a middle joint and a rear joint along the left longitudinal beam of the helicopter in sequence; The front joint is designed on the connecting belt plate of the left longitudinal beam, is a machined aluminum alloy T-shaped joint, is riveted, has two bolt holes, and is screwed with the magnetic force probe rod; the middle joint is connected on the front crossbar of the landing gear; and the rear joint is connected on the rear crossbar of the landing gear; The middle joint and the rear joint are shared joints of the magnetic force probe rod and the external hanging device; In S1, the aerial magnetic force instrument is arranged at the rear of the helicopter cabin, two U-shaped reinforcing assemblies are arranged under the floor of the helicopter cabin for bearing an aerial magnetic force main machine cabinet of the aerial magnetic force instrument, and a floating nut plate is arranged on the two U-shaped reinforcing assemblies; S2, when the helicopter is in the aerial magnetic force gravity combination task configuration, the double-seat chair on the side of the aerial magnetic force instrument is removed based on the aerial magnetic force task configuration, and an aerial gravity instrument is arranged; the helicopter needs the aerial magnetic force instrument, the magnetic force probe rod and the aerial gravity instrument when performing the aerial magnetic force gravity combination task; In S2, the aerial gravity instrument is mounted on the side of the aerial magnetic force instrument in the passenger cabin of the helicopter, the aerial gravity instrument is screwed with the two U-shaped reinforcing assemblies through a gravity instrument adapter plate, the aerial gravity instrument is screwed with the gravity instrument adapter plate, and the aerial gravity instrument is connected with the floor of the helicopter by means of the gravity instrument adapter plate; S3, when the helicopter is in the aerial magnetic force radioactivity combination task configuration, the magnetic force probe rod is retained and the original aerial magnetic force instrument is removed based on the aerial magnetic force task configuration, and an aerial magnetic force instrument and crystal boxes are newly arranged in the cabin of the helicopter; the helicopter needs the aerial magnetic force instrument and the two crystal boxes when performing the aerial magnetic force radioactivity combination task; In S3, the aerial magnetic force instrument and the two crystal boxes are screwed and mounted on the rear side of the cabin through a combination mounting plate, the combination mounting plate is bolted with the two U-shaped reinforcing assemblies, the two crystal boxes are fixed on the mounting bottom plate of the combination mounting plate, and the aerial magnetic force instrument is fixed on the mounting upper plate of the combination mounting plate; S4, when the helicopter is in the aerial electromagnetic task configuration, the magnetic force probe rod and the aerial magnetic force instrument are removed based on the aerial magnetic force task configuration, the aerial electromagnetic coil is hung outside for exploration, and an aerial electromagnetic main machine cabinet is arranged in the cabin of the helicopter; the helicopter needs the aerial electromagnetic main machine cabinet and the aerial electromagnetic coil when performing the aerial electromagnetic task; In S4, the helicopter provides an external hanging device, the aerial electromagnetic coil is hung below the helicopter through a hanging cable, the aerial electromagnetic main machine cabinet is mounted in the passenger cabin, and the aerial electromagnetic main machine cabinet is connected with the floor of the helicopter through an adapter plate.

2. The method of designing an airborne geophysical helicopter according to claim 1, wherein, The method further comprises: S5, set up environmental application task auxiliary equipment matched with four task configurations of the helicopter, the environmental application task auxiliary equipment at least includes: sand prevention device, emergency floating device, loudspeaker, search light.

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