Magnetic moment measuring device of magnetic torquer

Abstract

The utility model relates to a magnetic moment measuring device of a magnetic torquer. The device comprises a magnetic moment test bench, and a two-dimensional moving support is arranged on the magnetic moment test bench. A plurality of magnetometers are arranged on the two-dimensional moving bracket at intervals, and each magnetometer is fixed on the two-dimensional moving bracket in a sliding manner; the magnetic moment test bench is also provided with a test rotary table, and a to-be-tested magnetic torquer is disposed on the test rotary table. The test rotary table is arranged on one side close to the magnetometers, and the magnetic induction intensity of the to-be-tested magnetorquer is measured through the magnetometers. The device provided by the utility model can be suitable for the measurement of the to-be-measured magnetorquer with different lengths, is simple in operation, is high in measurement precision, is high in accuracy, and is high in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to satellite control technical field especially relates to a magnetic moment measuring device of magnetic moment device. BACKGROUND

[0002] With the rapid development of low-orbit satellite application, as a key control component, magnetic moment device becomes one of the important means of satellite attitude adjustment and stability. Magnetic moment device generates control torque through the interaction of its own generated magnetic field and the earth's magnetic field, thereby effectively changing the direction of the satellite.

[0003] At present, the control principle of magnetic moment device is based on the input of different size and direction of current to generate corresponding magnetic moment. However, the magnetic moment measurement process of traditional magnetic moment device is relatively cumbersome, involving complex process, increasing the difficulty and technical threshold of operation. This not only affects the work efficiency, but also challenges the accuracy of measurement results.

[0004] In addition, the existing measurement and calculation method often produces a certain degree of deviation, affecting the precision of satellite attitude control. This deviation may be due to the instability of equipment parameters, environmental changes and other factors, resulting in the actual application effect of magnetic moment failing to achieve the expected. Therefore, a new measurement method is urgently needed to improve the magnetic moment measurement accuracy and operation simplicity of magnetic moment device, so as to improve the overall performance of satellite attitude control. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a magnetic moment measuring device of magnetic moment device which is simple to operate and has high accuracy of the measured magnetic moment.

[0006] A magnetic moment measuring device of magnetic moment device, comprising a magnetic moment test bench, a two-dimensional moving support is arranged on the magnetic moment test bench;

[0007] A plurality of magnetometers are arranged at intervals on the two-dimensional moving support, and each magnetometer is slidably fixed on the two-dimensional moving support;

[0008] A test turntable is further arranged on the magnetic moment test bench, and a magnetic moment device to be tested is placed on the test turntable;

[0009] The test turntable is arranged on the side close to the magnetometer, and the magnetic induction intensity of the magnetic moment device to be tested is measured by each magnetometer.

[0010] In one embodiment, the two-dimensional moving support comprises a longitudinal axis adjusting support and a transverse axis adjusting support;

[0011] The longitudinal axis adjusting support is vertically installed on the magnetic moment test bench and is in sliding connection with the magnetic moment test bench;

[0012] The horizontal axis adjusting support is transversely mounted on the longitudinal axis adjusting support and slides on the longitudinal axis adjusting support along the x-axis and the y-axis.

[0013] In one embodiment, the magnetometers are arranged at intervals on the horizontal axis adjusting support and are respectively in sliding connection with the horizontal axis adjusting support.

[0014] In one embodiment, a sliding groove is formed on the horizontal axis adjusting support, and a sliding block matched with the sliding groove is arranged on the sliding groove.

[0015] The number of the sliding blocks corresponds to the number of the magnetometers, and each magnetometer is fixed on the sliding block and is in sliding connection with the horizontal axis adjusting support.

[0016] In one embodiment, the magnetometers are arranged on the same horizontal line on the horizontal axis adjusting support.

[0017] In one embodiment, the test turntable further comprises a lifting member, and the to-be-tested magnetic torque device is placed on the lifting member; the height of the to-be-tested magnetic torque device is adjusted through the lifting member.

[0018] In one embodiment, the test turntable comprises a stepping motor and a turntable.

[0019] The turntable is fixed on the stepping motor, and the turntable is driven to rotate through the stepping motor.

[0020] In one embodiment, all the accessories on the magnetic moment test platform are made of weakly magnetic aluminum alloy or acrylic material.

[0021] In one embodiment, the magnetic moment test platform further comprises a power supply, and the power supply is electrically connected with each magnetometer and the to-be-tested magnetic torque device to provide electric energy with different voltages.

[0022] Compared with the prior art, the magnetic moment measuring device for the magnetic torque device has the following effects:

[0023] 1. The magnetometers are fixed on the two-dimensional moving support, and the distance and the height of the magnetometers and the to-be-tested magnetic torque device can be flexibly adjusted through the two-dimensional moving support; meanwhile, the magnetometers are slidably fixed on the two-dimensional moving support, and the distance of the magnetometers and the to-be-tested magnetic torque device can be further adjusted, so that the device can be applied to the measurement of to-be-tested magnetic torque devices with different lengths and sizes, has high accuracy and strong adaptability.

[0024] 2. The magnetic induction intensity of the to-be-tested magnetic torque device at different angles on the test turntable is collected through the multiple magnetometers, so that the magnetic field characteristics of the to-be-tested magnetic torque device can be comprehensively obtained, the collected data required for calculation can be enriched, and the measurement accuracy and reliability can be improved.

[0025] 4. The overall structural design is simple and clear, the operation is simple, the threshold for use is lowered, and the application range is wide. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the magnetic moment measuring device of a magnetic torque generator in one embodiment.

[0028] Explanation of reference numerals in the attached figures:

[0029] Magnetic moment test stand 1, longitudinal axis fixing component 11, longitudinal axis adjusting bracket 21, transverse axis adjusting bracket 22, magnetometer 3, test system 4, test turntable 5, lifting component 51, magnetic torque device under test 6, USB to RS232 integrated module 7, power supply 8.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] It is understood that the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0037] See Figure 1 This embodiment provides a magnetic moment measuring device for a magnetic torque generator, mainly comprising a magnetic moment testing platform 1, on which a two-dimensional movable support is mounted; a plurality of magnetometers 3 are spaced apart on the two-dimensional movable support, each magnetometer 3 being slidably fixed on the two-dimensional movable support; a testing turntable 5 is also provided on the magnetic moment testing platform 1, on which a magnetic torque generator 6 to be tested is placed; the testing turntable 5 is positioned on the side closest to the magnetometers 3, and the magnetic induction intensity of the magnetic torque generator 6 is measured by each magnetometer 3. The device has a simple and clear overall structural design, is easy to operate, lowers the barrier to entry, and has a wide range of applications.

[0038] In this embodiment, the distance and height between the magnetometer 3 and the magnetic torque device 6 under test can be flexibly adjusted using a two-dimensional movable support. Simultaneously, the magnetometer 3 can be slidably fixed on the two-dimensional movable support, allowing for further fine-tuning of the distance between the magnetometer 3 and the magnetic torque device 6. This allows for the measurement of magnetic torque devices 6 of different lengths and sizes, offering high accuracy and strong adaptability. The arrangement of multiple magnetometers 3 enables simultaneous acquisition of the magnetic induction intensity of the magnetic torque device 6 at different angles on the test turntable 5, thereby comprehensively obtaining the magnetic field characteristics of the magnetic torque device 6 and providing abundant data for subsequent calculations. This not only improves measurement accuracy but also enhances calculation reliability.

[0039] Specifically, the magnetic moment test table 1 is a rectangular flat base with good flatness for mounting all test components. In the long direction of the magnetic moment test table 1, a longitudinal axis fixing part 11 is fixed at the center line position, which is a long strip-shaped plate structure, and a first sliding groove is provided on the upper surface of the longitudinal axis fixing part 11, and a first sliding block matched with the first sliding groove is provided on the first sliding groove. A two-dimensional moving support is fixed on the first sliding block, so that it can slide along the length direction of the longitudinal axis fixing part 11, and after sliding to the predetermined position, it is fixed by a loose screw, and the subsequent sliding is also fixed by a loose screw, which will not be described again.

[0040] It can be understood that the two-dimensional moving support can be a component capable of moving along the x-axis and y-axis in the vertical plane, which is hinged by several rod parts, one end of the component is fixed on the sliding block on the longitudinal axis fixing part 11, and the other end is a free end for mounting the magnetometer 3. As shown in Figure 1 The two-dimensional moving support is a support composed of a longitudinal axis adjusting support 21 and a transverse axis adjusting support 22. When it is a support composed of a longitudinal axis adjusting support 21 and a transverse axis adjusting support 22, one end of the longitudinal axis adjusting support 21 is fixed on the first sliding block, and the other end is a free end. By matching the first sliding groove with the first sliding block, the longitudinal axis adjusting support 21 is vertically fixed on the magnetic moment test table 1, and the longitudinal axis adjusting support 21 can slide along the length direction of the longitudinal axis fixing part 11, so as to quickly adjust the distance between the longitudinal axis adjusting support 21 and the test turntable 5.

[0041] The longitudinal axis adjusting support 21 is provided with a second sliding groove on the surface, and a second sliding block matched with the second sliding groove is provided on the second sliding groove, and the transverse axis adjusting support 22 is fixed on the second sliding block in the transverse direction. By matching the second sliding groove with the second sliding block, the transverse axis adjusting support 22 can slide along the y-axis on the longitudinal axis adjusting support 21 to adjust the height of the magnetometer 3. In addition, the side of the transverse axis adjusting support 22 facing the longitudinal axis adjusting support 21 is provided with a third sliding groove, and a third sliding block is correspondingly provided on the longitudinal axis adjusting support 21, and by matching the third sliding groove with the third sliding block, the transverse axis adjusting support 22 can slide along the x-axis on the longitudinal axis adjusting support 21 to adapt to different lengths of the magnetic moment to be measured 6.

[0042] On the horizontal axis adjusting support 22, a plurality of magnetometers 3 are arranged at intervals, and the magnetometers 3 are respectively in sliding connection with the horizontal axis adjusting support 22. Specifically, on the upper surface of the horizontal axis adjusting support 22, a fourth sliding groove is arranged, and a fourth sliding block matched with the fourth sliding groove is arranged on the fourth sliding groove. The number of the fourth sliding blocks corresponds to the number of the magnetometers 3, and each magnetometer 3 is fixed on each fourth sliding block, so that each magnetometer 3 is arranged at intervals along the length direction of the horizontal axis adjusting support 22 and is in sliding connection with the horizontal axis adjusting support 22. That is to say, on the horizontal axis adjusting support 22, each magnetometer 3 is arranged on the same horizontal line and on the same axis. In this way, the distance between each magnetometer 3 and the magnetic moment to be tested 6 can be adjusted slightly, so as to measure the magnetic induction intensity of the magnetic moment to be tested 6 at different angles on the test turntable 5 from different distances. The number of the magnetometers 3 can be set according to the situation, and in the embodiment, three magnetometers 3 are used to measure the magnetic induction intensity of the magnetic moment to be tested 6. Preferably, the longitudinal axis fixing member 11, the longitudinal axis adjusting support 21 and the horizontal axis adjusting support 22 can be made of aluminum alloy guide rails to save manufacturing cost.

[0043] The test turntable 5 is arranged on the free end of the horizontal axis adjusting support 22 and includes a stepping motor and a turntable. The turntable is fixed on the stepping motor and is driven to rotate by the stepping motor, so as to drive the magnetic moment to be tested 6 to rotate at any angle. The connection mode of the stepping motor and the turntable is a conventional mode, which will not be described in detail here.

[0044] The test turntable 5 is arranged on the free end of the horizontal axis adjusting support 22 and includes a stepping motor and a turntable. The turntable is fixed on the stepping motor and is driven to rotate by the stepping motor, so as to drive the magnetic moment to be tested 6 to rotate at any angle. The connection mode of the stepping motor and the turntable is a conventional mode, which will not be described in detail here. Figure 1 The test turntable 5 is arranged on the free end of the horizontal axis adjusting support 22 and includes a stepping motor and a turntable. The turntable is fixed on the stepping motor and is driven to rotate by the stepping motor, so as to drive the magnetic moment to be tested 6 to rotate at any angle. The connection mode of the stepping motor and the turntable is a conventional mode, which will not be described in detail here.

[0045] In one embodiment, all the accessories on the magnetic moment test table 1 are made of weak magnetic aluminum alloy or acrylic material, including but not limited to the longitudinal axis fixing member 11, the longitudinal axis adjusting support 21, the horizontal axis adjusting support 22, the lifting member 51, the turntable, the sliding blocks and the like.

[0046] In one embodiment, the power supply 8 is further included, and the power supply 8 is connected with each magnetometer 3 and the magnetic moment to be tested 6 through a power supply cable to provide electric energy with different voltages. Preferably, the power supply 8 is a direct current stabilized power supply.

[0047] Further, the test system 4 and the USB-to-RS232 integrated module 7 are further included, and each magnetometer 3 is electrically connected with the test system 4. One end of the USB-to-RS232 integrated module 7 is connected with each magnetometer 3 and the test turntable 5, and the other end is connected with the test system 4. The connection mode is electrically connected by using a communication cable to perform data transmission communication. The USB-to-RS232 integrated module 7 is mainly used for serial transmission of the data collected by the magnetometer 3 to assist the test system 4 to acquire data.

[0048] The test system 4 mainly includes an upper computer and a calculation and analysis module. The upper computer is mainly used for controlling the stepping motor to work, thereby controlling the rotation of the turntable and further controlling the rotation angle of the to-be-tested magnetic torque device 6. The upper computer is used for acquiring the data transmitted by the USB-to-RS232 integrated module and sending the acquired data to the calculation and analysis module for calculation and processing to obtain the magnetic moment of the to-be-tested magnetic torque device 6. Through the processing and calculation of the test system 4 on the data, manual calculation is avoided, and human error is reduced.

[0049] When working, the following steps are performed for magnetic moment value calculation:

[0050] Step 201, ensure that there is no strong magnetic material around.

[0051] Step 202, fix the to-be-tested magnetic torque device 6 on the lifting piece 51, and the center point is located at the center of the test turntable 5. Adjust the height of the lifting piece 51 to make the to-be-tested magnetic torque device 6 and the magnetometer 3 located on the same axis. Connect the power supply 8 with each magnetometer 3 and the to-be-tested magnetic torque device 6 through a power supply cable. Connect the USB-to-RS232 integrated module with each magnetometer 3, the test turntable 5 and the test system 4 through a communication cable.

[0052] Step 203, input the distance between each magnetometer 3 and the to-be-tested magnetic torque device 6 in the operation interface of the upper computer, set the number of detection points and the number of single-point detection.

[0053] It can be understood that the number of detection points is the number of times of rotation of the test turntable 5, and the number of single-point detection is the number of single sampling of each magnetometer 3, and the average value is taken as the current magnetic induction intensity sampling data. Before the to-be-tested magnetic torque device 6 starts to be powered on for measurement, the upper computer needs to detect the zero point, that is, the current geomagnetic field intensity data.

[0054] Step 204, power on the to-be-tested magnetic torque device 6, and the upper computer starts to record the magnetic induction intensity data collected by each magnetometer 3 according to the set number of detection points, automatically generates a data curve of the magnetic induction intensity data and saves it in the background.

[0055] In step 205, after the host computer collects the magnetic induction intensity of all detection points, the magnetic moment value of the magnetic moment device is automatically calculated by the calculation and analysis module, and is displayed on the host computer operation interface.

[0056] The technical features of the above embodiments can be combined in any manner, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the description.

[0057] The above embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A magnetic moment measuring device for a magnetic moment meter, characterized in that The magnetic moment testing table is provided with a two-dimensional moving support; A plurality of magnetometers are arranged on the two-dimensional moving support at intervals, and each magnetometer is slidably fixed on the two-dimensional moving support; The magnetic moment testing table is further provided with a testing turntable, and the testing turntable is used for placing a magnetic moment device to be tested; The testing turntable is arranged on the side close to the magnetometers, and the magnetic induction intensity of the magnetic moment device to be tested is measured by each magnetometer.

2. The magnetic moment apparatus of claim 1, wherein, The two-dimensional moving support comprises a longitudinal axis adjusting support and a transverse axis adjusting support; The longitudinal axis adjusting support is vertically installed on the magnetic moment testing table and is in sliding connection with the magnetic moment testing table; The transverse axis adjusting support is transversely installed on the longitudinal axis adjusting support and slides along the x-axis and y-axis on the longitudinal axis adjusting support.

3. The magnetic moment apparatus of claim 2, wherein, Each magnetometer is arranged on the transverse axis adjusting support at intervals and is in sliding connection with the transverse axis adjusting support.

4. The magnetic moment apparatus of claim 3, wherein, A sliding groove is formed in the transverse axis adjusting support, and a sliding block matched with the sliding groove is arranged on the sliding groove; The number of the sliding blocks corresponds to the number of the magnetometers, each magnetometer is fixed on the sliding block, and the transverse axis adjusting support and the magnetometer are in sliding connection.

5. The magnetic moment measuring device of any one of claims 2 to 4, characterized in that On the transverse axis adjusting support, each magnetometer is arranged on the same horizontal line.

6. The magnetic moment apparatus of claim 1, wherein, The testing turntable is further provided with a lifting member, and the magnetic moment device to be tested is placed on the lifting member; the height of the magnetic moment device to be tested is adjusted by the lifting member.

7. The magnetic moment apparatus of claim 6, wherein, The testing turntable comprises a stepping motor and a turntable; The turntable is fixed on the stepping motor, and the turntable is driven to rotate by the stepping motor.

8. The magnetic moment apparatus of claim 6 or 7, wherein All accessories on the magnetic moment testing table are made of weak magnetic aluminum alloy or acrylic material.

9. The magnetic moment measuring device of any one of claims 1 to 4, wherein A power supply is further provided, and the power supply is electrically connected with each magnetometer and the magnetic moment device to be tested to provide electric energy with different voltages.

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