A device for testing superconducting tapes

Abstract

The present application discloses a device for testing superconducting tapes, comprising: a fixed platform, a fixture for fixing both ends of the superconducting tape, a bender and a magnetic adjustment assembly; both fixtures are mounted on the fixed platform; the bender is fixed on the fixed platform and is provided with a curved surface for the superconducting tape to pass around and bend the superconducting tape; the magnetic adjustment assembly comprises a magnetic unit and an adjustment mechanism; the adjustment mechanism is mounted on the fixed platform and is used to drive the magnetic unit to move; the magnetic unit is mounted on the adjustment mechanism and is arranged opposite to the curved surface, and a magnetic field region is formed between the magnetic unit and the curved surface for the superconducting tape to pass through. The overall operation is convenient, which helps to improve the test efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of superconducting tape testing, and in particular to a device for superconducting tape testing. Background Art

[0002] Superconducting tapes are made of superconducting materials and have the characteristics of good self-field current density, excellent magnet winding performance, and extremely low AC loss. They are widely used in various fields such as electricity, transportation, medical treatment, high-energy physics, and military. Superconducting tapes are becoming more and more important, and the testing and research on superconducting tapes are constantly deepening. The existing magnetic field test and bending test for superconducting tapes are one of the conventional test items among many test items. However, the existing magnetic field test tools and bending fixtures are all independent. Different test tools must be replaced for each test, and then the superconducting tape to be tested must be reinstalled and fixed. The operation is cumbersome, resulting in low test efficiency. Summary of the invention

[0003] In view of this, the purpose of the present application is to provide a superconducting tape testing device which is easy to operate and helps to improve testing efficiency.

[0004] In order to achieve the above technical purpose, the present application provides a superconducting tape testing device, comprising: a fixing table, a fixing device for fixing both ends of the superconducting tape, a bending device and a magnetic adjustment component;

[0005] The two fixing devices are both installed on the fixing platform;

[0006] The bender is fixed on the fixed platform and is provided with a bending surface for the superconducting tape to pass around and used for bending the superconducting tape;

[0007] The magnetic adjustment component includes a magnetic unit and an adjustment mechanism;

[0008] The adjustment mechanism is installed on the fixing platform and is used to drive the magnetic unit to move;

[0009] The magnetic unit is installed on the adjustment mechanism and is arranged opposite to the curved surface. A magnetic field region is formed between the magnetic unit and the curved surface for the superconducting tape to pass through.

[0010] Further, the fixer includes a conductive L-shaped fixing plate, a conductive pressing plate and a bolt assembly;

[0011] The fixing plate includes a first connecting plate and a second connecting plate perpendicular to the first connecting plate;

[0012] The first connecting piece is connected to the fixing platform through the bolt assembly;

[0013] The pressing sheet is detachably mounted on the second connecting sheet, and a clamping gap is formed between the pressing sheet and the second connecting sheet for the end of the superconducting tape to pass through.

[0014] Further, the bolt assembly includes a first locking bolt and a first nut matched with the first locking bolt;

[0015] The fixing platform is provided with a first guide groove;

[0016] The first connecting piece is slidably mounted on the first guide groove, and the first connecting piece is provided with a guide hole for the first locking bolt to movably pass through and which cooperates with the first guide groove.

[0017] Further, the bender comprises a cylinder and a first locking member;

[0018] The cylinder is mounted on the fixing platform through the first locking member.

[0019] Furthermore, a through hole penetrating the cylinder is provided at the center of the top surface of the cylinder;

[0020] The fixing platform is provided with a first threaded hole corresponding to the through hole;

[0021] The first locking member includes a first screw and a first knob;

[0022] One end of the first screw rod movably extends into the first threaded hole through the through hole;

[0023] The first knob is fixed on the other end of the first screw rod and contacts and abuts against the cylinder.

[0024] Furthermore, the cylinder is composed of a plurality of sector-shaped blocks spliced ​​together;

[0025] The fixing platform is provided with a first threaded hole, and the fixing platform is also provided with a plurality of second guide grooves corresponding to the sectors one by one and evenly distributed around the circumference of the first threaded hole;

[0026] The bottom of each sector block is provided with a first protruding block which is slidably matched with the second guide rail;

[0027] The narrow end of the sector block is provided with an arc-shaped end surface which gradually narrows from top to bottom;

[0028] An inverted conical accommodating cavity is formed between the arc-shaped end surfaces of the plurality of sector-shaped blocks;

[0029] The first locking member includes a first screw, a pressing block adapted to the shape of the accommodating cavity, and a first knob;

[0030] The pressing block is sleeved and fixed on the first screw rod, and the pressing block movably extends into the accommodating cavity and contacts and abuts against the arc-shaped end surface;

[0031] The first screw rod is connected to the first knob at one end extending out of the pressing block, and is movably extended into the first threaded hole through the accommodating cavity at the other end extending out of the pressing block.

[0032] Further, the adjustment mechanism includes a fixing block and a second locking member;

[0033] The fixing platform is provided with a third guide groove;

[0034] The bottom of the fixing block is provided with a second protruding block which is slidably matched with the third guide groove, and the fixing block is mounted on the fixing platform through the second locking member;

[0035] The magnetic unit is installed on the fixing block.

[0036] Further, the second locking member includes a second screw and a second nut;

[0037] The second nut is mounted on the fixing platform and is matched with the thread of the second screw;

[0038] One end of the second screw rod movably passes through the second nut and is rotatably connected to the fixing block.

[0039] Further, it also includes a second locking bolt;

[0040] A fixing groove is provided on one side of the fixing block facing the curved surface, and a second threaded hole communicating with the fixing groove is provided on the top of the fixing block;

[0041] One end of the second locking bolt moves through the second threaded hole and contacts and abuts against the magnetic unit.

[0042] Furthermore, the magnetic unit is specifically a magnet.

[0043] It can be seen from the above technical scheme that the present application installs a fixture and a bender on a fixing table, and uses the cooperation between the fixture and the bender to bend and fix the superconducting tape, and also installs a magnetic adjustment component and a magnetic unit at the position directly opposite to the bending surface of the bender, and uses an adjustment mechanism to drive the magnetic unit to move to adjust the position of the magnetic unit, so that an adjustable magnetic field area is formed between the magnetic unit and the bending surface for the superconducting tape to pass through, so that the overall device can not only be used for bending tests of superconducting tapes, but also does not need to repeatedly disassemble the superconducting tapes, and can also create different magnetic field environments through the adjustment mechanism for magnetic field tests of superconducting tapes. The overall operation is convenient, which helps to improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 This is an axonometric diagram of the overall structure of a superconducting tape testing device provided in the present application;

[0046] Figure 2 A top view of the overall structure of a superconducting tape testing device provided in this application;

[0047] Figure 3 for Figure 2 A top view without the first locking member;

[0048] Figure 4 This is a schematic structural diagram of a superconducting tape testing device provided in the present application, in which the first locking member does not have a pressing block;

[0049] Figure 5 This is a schematic structural diagram of a first locking member with a pressure block in a superconducting tape testing device provided in the present application;

[0050] Figure 6 This is a schematic structural diagram of a superconducting tape testing device provided in the present application, wherein the cylinder is composed of a plurality of sector-shaped blocks;

[0051] Figure 7 for Figure 6 Schematic diagram of the structure in which the radius of the cylinder becomes larger after adjustment;

[0052] Figure 8 This is a schematic structural diagram of a superconducting tape testing device provided in the present application, wherein the cylinder is composed of two fan-shaped blocks;

[0053] In the figure: 1, fixing table; 2, first locking member; 21, first knob; 22, first screw; 23, pressing block; 3, cylinder; 31, sector block; 311, arc-shaped end face; 4, fixing plate; 41, first connecting plate; 42, second connecting plate; 5, pressing plate; 6, superconducting tape; 7, first guide groove; 8, magnetic unit; 9, third guide groove; 10, Hall sensor; 11, fixing block; 12, second nut; 13, second screw; 14, second locking bolt; 15, through hole; 16, first threaded hole; 17, first locking bolt. DETAILED DESCRIPTION

[0054] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0055] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0056] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0057] The embodiment of the present application discloses a device for testing a superconducting tape.

[0058] See also Figures 1 to 3 An embodiment of a superconducting tape testing device provided in the embodiments of the present application includes:

[0059] A fixing table 1, a fixture, a bender and a magnetic adjustment assembly for fixing the two ends of the superconducting tape 6 respectively; both fixtures are installed on the fixing table 1; the bender is fixed on the fixing table 1, and is provided with a bending surface for the superconducting tape 6 to pass around and used to bend the superconducting tape 6; the magnetic adjustment assembly includes a magnetic unit 8 and an adjustment mechanism; the adjustment mechanism is installed on the fixing table 1, and is used to drive the magnetic unit 8 to move; the magnetic unit 8 is installed on the adjustment mechanism, and is arranged opposite to the bending surface, and a magnetic field area is formed between the magnetic unit 8 and the bending surface for the superconducting tape 6 to pass through.

[0060] Specifically, the bender structure can be various, as long as the bender has a curved surface that can be passed around by the superconducting tape 6. When in use, the superconducting tape 6 is first passed around the curved surface of the bender, and then the two ends of the superconducting tape 6 are fixed by the fixing device and the superconducting tape 6 is tightened so that the superconducting tape 6 can be bent around the curved surface, thereby achieving the bending and fixing of the superconducting tape 6. As for the installation position of the bender and the superconducting tape 6, it can be as follows Figures 1 to 3 The three vertices of the isosceles triangle shown in the figure are distributed, that is, the fixture is symmetrically arranged and arranged on one side of the bender, so that the superconducting tape 6 is U-shaped. Of course, it can also be a right triangle with three vertices. The technicians in this field can make appropriate changes based on this, without any specific restrictions, as long as the position of the bender can be used to bend the superconducting tape 6. In addition, the adjustment mechanism in this embodiment can be a spacing setting of the arc top position facing the bending surface, and the magnetic unit 8 can also be installed in correspondence with the superconducting tape 6 bypassing the bending surface, so as to better provide the superconducting tape 6 with a variable and accurate magnetic field test environment, which can realize the bending project test and the magnetic field project test at the same time. Among them, a mounting groove (not shown in the figure) can also be opened at the position facing the magnetic unit 8 on the bending surface, so that in the magnetic field project test, the Hall sensor 10 used for testing can be installed on the bending surface, which is more convenient to use.

[0061] It can be seen from the above technical scheme that the present application installs a fixture and a bender on the fixing table 1, and uses the cooperation between the fixture and the bender to bend and fix the superconducting tape 6, and also installs a magnetic adjustment component and a magnetic unit 8 at the position directly opposite to the bending surface of the bender, and uses the adjustment mechanism to drive the magnetic unit 8 to move, so as to adjust the position of the magnetic unit 8, so that an adjustable magnetic field area for the superconducting tape 6 to pass through is formed between the magnetic unit 8 and the bending surface; so that the overall device can not only be used for the bending test of the superconducting tape 6, but also does not need to repeatedly disassemble the superconducting tape 6, and can also create different magnetic field environments through the adjustment mechanism for the magnetic field test of the superconducting tape 6. The overall operation is convenient, which helps to improve the test efficiency.

[0062] The above is the first embodiment of a superconducting tape testing device provided in the embodiment of the present application. The following is the second embodiment of a superconducting tape testing device provided in the embodiment of the present application. For details, please refer to Figures 1 to 8 .

[0063] A superconducting tape testing device comprises a fixing platform 1, a fixing device for fixing two ends of a superconducting tape 6 respectively, a bender and a magnetic adjustment component; both fixing devices are mounted on the fixing platform 1; the bender is fixed on the fixing platform 1 and is provided with a bending surface for the superconducting tape 6 to pass around and for bending the superconducting tape 6; the magnetic adjustment component comprises a magnetic unit 8 and an adjusting mechanism; the adjusting mechanism is mounted on the fixing platform 1 and is used to drive the magnetic unit 8 to move; the magnetic unit 8 is mounted on the adjusting mechanism and is arranged opposite to the bending surface, and a magnetic field region is formed between the magnetic unit 8 and the bending surface for the superconducting tape 6 to pass through.

[0064] Furthermore, if Figures 1 to 3 As shown, the fixture may include a conductive and L-shaped fixing plate 4, a conductive pressing plate 5 and a bolt assembly; the fixing plate 4 includes a first connecting plate 41 and a second connecting plate 42 perpendicular to the first connecting plate 41; the first connecting plate 41 is connected to the fixing platform 1 through a bolt assembly; the pressing plate 5 is detachably mounted on the second connecting plate 42, and a clamping gap is formed between the pressing plate 5 and the second connecting plate 42 for the end of the superconducting tape 6 to pass through.

[0065] Specifically, the fixing plate 4 and the pressing plate 5 can be made of conductive metal materials; wherein the fixing plate 4 is designed to be L-shaped, so that the fixing plate 4 not only has a second connecting plate 42 installed with the pressing plate 5, but also has a second connecting plate 42 installed with the fixing platform 1, which is convenient for installation and use. The pressing plate 5 can be fixedly connected to the second connecting plate 42 by screws to achieve clamping and fixing of the superconducting tape 6. The structural design of the fixing plate 4 and the pressing plate 5 in this embodiment is only an implementation means in this application, and those skilled in the art can make appropriate changes based on this, and there is no specific limitation.

[0066] Furthermore, if Figures 1 to 3 As shown, the bolt assembly includes a first locking bolt 17 and a first nut (not shown) matched with the first locking bolt 17; a first guide groove 7 is provided on the fixing platform 1; a first connecting piece 41 is slidably installed on the first guide groove 7, and a guide hole (not shown) is provided on the first connecting piece 41 for the first locking bolt 17 to move through and match with the first guide groove 7. Such a structural design enables the first connecting piece 41 to be slidably installed on the fixing platform 1, and a certain position adjustment can be achieved along the first guide groove 7 through the restriction of the first locking bolt 17, thereby better adjusting the bending degree of the superconducting tape 6 according to the test requirements. The first connecting piece 41 can be tightened by the cooperation of the first nut and the first locking bolt 17, and when adjustment is needed, it can be adjusted by loosening the first nut.

[0067] Furthermore, the bender may include a cylinder 3 and a first locking member 2; the cylinder 3 is mounted on the fixing platform 1 through the first locking member 2. Part of the cylindrical surface of the cylinder 3 may form a bending surface for bending the superconducting tape 6, for example Figures 1 to 3 As shown, the upper half of the cylindrical surface of the cylinder 3 can form a curved surface. Of course, the bender can also be a semi-cylinder 3, or a structure with an I-shaped wheel structure, and those skilled in the art can make appropriate changes based on this, without specific limitation.

[0068] Furthermore, if Figures 2 to 4 As shown, the top surface of the cylinder 3 is provided with a through hole 15 penetrating the cylinder 3 at the center position; the fixing platform 1 is provided with a first threaded hole 16 corresponding to the through hole 15; the first locking member 2 includes a first screw 22 and a first knob 21; one end of the first screw 22 is movably extended into the first threaded hole 16 through the through hole 15; the first knob 21 is fixed to the other end of the first screw 22 and contacts and abuts against the cylinder 3. The knob can conveniently twist the first screw 22, and the first knob 21 is used to press the cylinder 3, thereby achieving the fixation of the cylinder 3; the above technical means can realize the rapid disassembly and replacement of the cylinder 3; when the superconducting tape 6 needs to be bent to different radii, it can be used by replacing the cylinder 3 with different radii.

[0069] Further, in order to facilitate and continuously adjust the bending radius of the superconducting tape 6, refer to Figures 5 to 8 The cylinder 3 can also be composed of a plurality of sector blocks 31; the fixing platform 1 is provided with a first threaded hole 16, and the fixing platform 1 is also provided with a plurality of second guide grooves (not shown in the figure) corresponding to the sectors one by one and evenly distributed around the circumference of the first threaded hole 16; the bottom of each sector block 31 is provided with a first protrusion (not shown in the figure) that is slidably matched with the second guide rail; the second guide groove and the second protrusion can be used to make the sector block 31 slide along the direction of the change of the radius of the cylinder 3. To simultaneously drive a plurality of sector blocks 31 to move along the second guide groove, an arc-shaped end surface 311 that gradually narrows from top to bottom can be provided on the narrow end of the sector block 31; the arc-shaped end surfaces 311 of the plurality of sector blocks 31 form an inverted conical accommodation cavity.

[0070] The corresponding first locking member 2 includes a first screw rod 22, a pressure block 23 adapted to the shape of the accommodating cavity, and a first knob 21; the pressure block 23 is sleeved on the first screw rod 22, and the pressure block 23 is movably extended into the accommodating cavity and contacts and abuts against the arc-shaped end surface 311; the first screw rod 22 is connected to the first knob 21 at one end extending out of the pressure block 23, and the other end extending out of the pressure block 23 is movably extended into the first threaded hole 16 through the accommodating cavity. The first knob 21 in the first locking member 2 in this embodiment is only used to twist the first screw rod 22, while the pressure block 23 adapted to the shape of the accommodating cavity plays a fixing role; when the first knob 21 is continuously rotated, the first screw rod 22 continuously penetrates into the first threaded hole 16, and then the pressure block 23 continuously penetrates into the accommodating cavity, and then the mutual movement principle between the conical surfaces is used to convert the downward movement of the pressure block 23 into pushing each sector block 31 to move along the second guide groove direction to the position as shown in the figure. Figure 7 As shown, the radius of the cylinder 3 becomes larger. By this way, the cylinder 3 can be continuously adjusted, so that the bending radius of the superconducting tape 6 can be adjusted more conveniently according to the test requirements, which further helps to improve the test efficiency. Figure 8 As shown, the number of the sector blocks 31 may also be two, as long as a curved surface capable of bending the superconducting tape 6 can be formed.

[0071] Furthermore, if Figures 1 to 3 As shown, the adjustment mechanism includes a fixed block 11 and a second locking member; a third guide groove 9 is provided on the fixed platform 1; a second protrusion block that slides with the third guide groove 9 is provided at the bottom of the fixed block 11, and the fixed block 11 is installed on the fixed platform 1 through the second locking member; when adjusting, the distance between the magnetic unit 8 and the curved surface can be adjusted by moving the position of the fixed block 11, so as to form different magnetic field environments for the superconducting tape 6; after moving the fixed block 11, it can be locked and fixed by the second locking member. In addition, the magnetic unit 8 can be a magnetic material such as a magnet that can generate a magnetic field for testing.

[0072] Furthermore, the second locking member may include a second screw 13 and a second nut 12; the second nut 12 is mounted on the fixed platform 1 and is threadedly matched with the second screw 13; one end of the second screw 13 movably passes through the second nut 12 and is rotatably connected to the fixed block 11. By rotating the second screw 13, the relative position between the second screw 13 and the second nut 12 can be achieved, so that the fixed block 11 can be pushed and pulled by the second screw 13, which can not only fix the fixed block 11, but also control the movement of the fixed block 11, which is convenient to use. Of course, the second locking component can also be an electric push rod, which is more convenient to use for electric control and adjustment. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation.

[0073] Furthermore, it also includes a second locking bolt 14; a fixing groove (not shown in the figure) is provided on one side of the fixing block 11 facing the curved surface, and a second threaded hole (not shown in the figure) connected to the fixing groove is provided on the top of the fixing block 11; one end of the second locking bolt 14 moves through the second threaded hole and contacts and abuts against the magnetic unit 8. When installing, place the magnetic unit 8 in the fixing groove, and then screw in the second locking bolt 14 until one end of the second locking bolt 14 can abut against the magnetic unit 8. When disassembling, you only need to loosen the second locking bolt 14. The overall replacement and maintenance of the magnetic unit 8 is more convenient.

[0074] It can be seen from the above technical scheme that the present application installs a fixture and a bender on the fixing table 1, and uses the cooperation between the fixture and the bender to bend and fix the superconducting tape 6, and also installs a magnetic adjustment component and a magnetic unit 8 at the position directly opposite to the bending surface of the bender, and uses the adjustment mechanism to drive the magnetic unit 8 to move, so as to adjust the position of the magnetic unit 8, so that an adjustable magnetic field area for the superconducting tape 6 to pass through is formed between the magnetic unit 8 and the bending surface; so that the overall device can not only be used for the bending test of the superconducting tape 6, but also does not need to repeatedly disassemble the superconducting tape 6, and can also create different magnetic field environments through the adjustment mechanism for the magnetic field test of the superconducting tape 6. The overall operation is convenient, which helps to improve the test efficiency.

[0075] The above is a detailed introduction to a superconducting tape testing device provided by the present application. For a person skilled in the art, according to the concept of the embodiments of the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A superconducting tape testing device, characterized in that: include: A fixing table, a fixing device for fixing both ends of the superconducting tape, a bending device and a magnetic adjustment assembly; The two fixing devices are both mounted on the fixing platform; The bender is fixed on the fixed platform and is provided with a bending surface for the superconducting tape to pass around and used for bending the superconducting tape; The magnetic adjustment component includes a magnetic unit and an adjustment mechanism; The adjustment mechanism is installed on the fixing platform and is used to drive the magnetic unit to move; The magnetic unit is installed on the adjustment mechanism and is arranged opposite to the curved surface, and a magnetic field region is formed between the magnetic unit and the curved surface for the superconducting tape to pass through; The bender comprises a cylindrical body and a first locking member; The cylinder is mounted on the fixing platform through the first locking member; The top surface of the cylinder is provided with a through hole penetrating the cylinder at the center position; The fixing platform is provided with a first threaded hole corresponding to the through hole; The first locking member includes a first screw and a first knob; One end of the first screw rod movably extends into the first threaded hole through the through hole; The first knob is fixed on the other end of the first screw rod and contacts and abuts against the cylinder; The cylinder is composed of a plurality of fan-shaped blocks; The fixing platform is provided with a first threaded hole, and the fixing platform is also provided with a plurality of second guide grooves corresponding to the sectors one by one and evenly distributed around the circumference of the first threaded hole; The bottom of each sector block is provided with a first protruding block which is slidably matched with the second guide groove; The narrow end of the sector block is provided with an arc-shaped end surface which gradually narrows from top to bottom; An inverted conical accommodating cavity is formed between the arc-shaped end surfaces of the plurality of sector-shaped blocks; The first locking member includes a first screw, a pressing block adapted to the shape of the accommodating cavity, and a first knob; The pressing block is sleeved and fixed on the first screw rod, and the pressing block movably extends into the accommodating cavity and contacts and abuts against the arc-shaped end surface; The first screw rod is connected to the first knob at one end extending out of the pressing block, and is movably extended into the first threaded hole through the accommodating cavity at the other end extending out of the pressing block.

2. The superconducting tape testing device according to claim 1, characterized in that: The fixer includes a conductive L-shaped fixing plate, a conductive pressing plate and a bolt assembly; The fixing plate includes a first connecting plate and a second connecting plate perpendicular to the first connecting plate; The first connecting piece is connected to the fixing platform through the bolt assembly; The pressing sheet is detachably mounted on the second connecting sheet, and a clamping gap is formed between the pressing sheet and the second connecting sheet for the end of the superconducting tape to pass through.

3. The superconducting tape testing device according to claim 2, characterized in that: The bolt assembly includes a first locking bolt and a first nut matched with the first locking bolt; The fixing platform is provided with a first guide groove; The first connecting piece is slidably mounted on the first guide groove, and the first connecting piece is provided with a guide hole for the first locking bolt to movably pass through and which cooperates with the first guide groove.

4. The superconducting tape testing device according to claim 1, characterized in that: The adjustment mechanism includes a fixing block and a second locking member; The fixing platform is provided with a third guide groove; The bottom of the fixing block is provided with a second protruding block which is slidably matched with the third guide groove, and the fixing block is mounted on the fixing platform through the second locking member; The magnetic unit is installed on the fixing block.

5. The superconducting tape testing device according to claim 4, characterized in that: The second locking member includes a second screw and a second nut; The second nut is mounted on the fixing platform and is matched with the thread of the second screw; One end of the second screw rod movably passes through the second nut and is rotatably connected to the fixing block.

6. The superconducting tape testing device according to claim 4, characterized in that: Also included is a second locking bolt; A fixing groove is provided on one side of the fixing block facing the curved surface, and a second threaded hole communicating with the fixing groove is provided on the top of the fixing block; One end of the second locking bolt moves through the second threaded hole and contacts and abuts against the magnetic unit.

7. The superconducting tape testing device according to claim 1, characterized in that: The magnetic unit is specifically a magnet.

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