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A receiving coil and aeronautical electromagnetic technology, which is applied in the field of pod-type helicopter time-domain electromagnetic detection and receiving devices, can solve the problems of weakening motion noise, achieve the effects of increasing moving resistance, suppressing motion noise, and improving the primary field compensation effect
Active Publication Date: 2020-06-23
JILIN UNIV
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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 displacement of the receiving coil so that it It is suitable for hard or soft supports in the center mode or eccentric mode, and weakens the motion noise by reducing the moment in the pitch and roll directions. It is suitable for the attitude change suppression device of the receiving coil of the helicopter time-domain airborne electromagnetic method;
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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 compensation coil 4 are concentric circles in the same plane. Based on their size, the size of the receiving coil 52 is calculated by using the principle of primary field compensation 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 material.
[0043] Make evenly distributed connection points 521, 522, 523, 524, 525, 526 at the center of the axis of the outer circumferential surface of the receiving coil, and make a receiving coil gravity bearing point 527 at the center of the top circular area.
[0044] The receiving coil bearing point 517 is arranged at the center of the circular area on the top layer of the inner surface of the fixing bracket 51, corresponding to the receiving coil gravity bearing point 527, and the two-point connection di...
Embodiment 2
[0053] For eccentric hard or soft stent helicopter time-domain electromagnetic detection systems, the transmitting coil 3 and the compensation coil 4 are eccentric circular structures in the same plane. Based on their structure and size, the size of the receiving coil 52 is calculated using the principle of primary field compensation. , Thereby determining the size of the fixed bracket 51 and the fixed bracket base 54.
[0054] After determining the size, it is made of completely non-magnetic material.
[0055] Make evenly distributed connection points 521, 522, 523, 524, 525, 526 at the center of the axis of the outer circumferential surface of the receiving coil, and make a receiving coil gravity bearing point 527 at the center of the top circular area.
[0056] The receiving coil bearing point 517 is arranged at the center of the circular area on the top layer of the inner surface of the fixing bracket 51, corresponding to the receiving coil gravity bearing point 527, and the two-...
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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 helicopter time-domain aviation electromagnetic method receiving coil attitude change suppression device, in particular to a pod-type helicopter time-domain electromagnetic detection receiving device. Background technique: [0002] The time domain electromagnetic detection device of the pod-type helicopter takes the helicopter as the carrier, and mounts the transmitting coil, the compensation coil and the receiving coil through the hanging rope. The transmitting coil emits a bipolar periodic large current with a fixed frequency, which stimulates the underground medium eddy current effect to produce a changing magnetic field signal. The receiving coil receives the changed magnetic field signal and collects it in real time by the receiving system, and then processes and interprets the collected data. , Complete the geological survey. While the bipolar periodic large current passes through the transmitting coil, it will flow backwa...
Claims
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Application Information
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