Time-domain aeroelectromagnetic method receiving coil attitude change suppression device and manufacturing method thereof

A technology for receiving coils and attitude changes, which is applied in the field of time-domain electromagnetic detection and receiving devices for pod helicopters, can solve problems such as weakening motion noise, and achieve the effects of increasing moving resistance, suppressing motion noise, and overcoming limitations.

Active Publication Date: 2018-09-21
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the above-mentioned existing receiving coil introduces motion noise due to the change of pitch angle and roll angle caused by vibration during flight, and provides a restraint device for changing the attitude of the receiving coil to limit the spatial displacemen...

Method used

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  • Time-domain aeroelectromagnetic method receiving coil attitude change suppression device and manufacturing method thereof
  • Time-domain aeroelectromagnetic method receiving coil attitude change suppression device and manufacturing method thereof
  • Time-domain aeroelectromagnetic method receiving coil attitude change suppression device and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] For the time-domain electromagnetic detection system of the soft support helicopter in the center mode, the transmitting coil 3 and the compensating coil 4 are concentric circle structures in the same plane. Based on their dimensions, the size of the receiving coil 52 is calculated by using the principle of primary field compensation, so as to determine the fixed support 51 and the size of the fixed bracket base 54.

[0042] After determining the size, it is made of completely non-magnetic materials.

[0043] Make evenly distributed connecting points 521, 522, 523, 524, 525, 526 at the center of the axis center of the outer surface of the receiving coil, and make the gravity bearing point 527 of the receiving coil at the center of the top circular area.

[0044] The receiving coil bearing point 517 is set at the center of the top layer circular area on the inner surface of the fixed bracket 51, corresponding to the receiving coil gravity bearing point 527, and the two-p...

Embodiment 2

[0053] For the eccentric hard support or soft support helicopter time-domain electromagnetic detection system, the transmitting coil 3 and the compensation coil 4 are eccentric circle structures in the same plane, and the size of the receiving coil 52 is calculated based on its structure and size using the primary field compensation principle , so as to determine the size of the fixing bracket 51 and the fixing bracket base 54 .

[0054] After determining the size, it is made of completely non-magnetic materials.

[0055] Make evenly distributed connecting points 521, 522, 523, 524, 525, 526 at the center of the axis center of the outer surface of the receiving coil, and make the gravity bearing point 527 of the receiving coil at the center of the top circular area.

[0056] The receiving coil bearing point 517 is set at the center of the top layer circular area on the inner surface of the fixed bracket 51, corresponding to the receiving coil gravity bearing point 527, and the...

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Abstract

The invention relates to a time-domain aeroelectromagnetic method receiving coil attitude change suppression device and a manufacturing method thereof. The time-domain aeroelectromagnetic method receiving coil attitude change suppression device is characterized in that connection points are uniformly arranged in a fixed bracket in circumferential manner; the center point of the circular inner surface of the top layer is provided with a receiving coil bearing connection point; a receiving coil is wound in the axial direction of the receiving coil in a differential structure; fixed connection points are uniformly arranged on the outer surface; the center point of the circular outer surface of the top layer is provided with a receiving coil bearing connection point; through flexible or rigidbinding ropes, the connection points are connected in the radial direction of the receiving coil, and through the flexible binding rope, in the axial direction of the receiving coil, the receiving coil bearing points are connected, thus guaranteeing attitude balance of the receiving coil; and the binding rope enables the receiving coil not to generate moment in the pitching and rolling directions,thus suppressing generation of motion fundamentally; and by means of damping fluid, vibration isolation effect is achieved, and at the same time, the mobile resistance of the receiving coil is increased, thus further limiting spatial displacement of the receiving coil, and improving the primary field compensation effect. The time-domain aeroelectromagnetic method receiving coil attitude change suppression device overcomes limitations of application.

Description

Technical field: [0001] The invention relates to a device for suppressing attitude change of a receiving coil of a helicopter time-domain airborne electromagnetic method, in particular to a pod-type helicopter time-domain electromagnetic detection receiving device. Background technique: [0002] The pod-type helicopter time-domain electromagnetic detection device uses the helicopter as a carrier, and mounts the transmitting coil, compensating coil and receiving coil through hanging ropes. The transmitting coil emits a fixed-frequency bipolar periodic large current to excite the eddy current effect of the underground medium to generate a changing magnetic field signal. The receiving coil receives the changing magnetic field signal and collects it in real time through the receiving system, and then processes and interprets the collected data. , to complete the geological survey. When the bipolar periodic large current passes through the transmitting coil, it will flow in the ...

Claims

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Application Information

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IPC IPC(8): G01V3/10
CPCG01V3/10
Inventor 林君刘飞王言章王世隆许权
Owner JILIN UNIV
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