Optical calibration device and method

Abstract

The invention relates to the technical field of mechanical property testing of superconducting materials, and discloses an optical calibration device which comprises an ultraviolet light emitter, a position reference sheet, an ultraviolet light sensor and a driving control unit, the position reference sheet is arranged below the ultraviolet light emitter, the ultraviolet light sensor is arranged below the position reference sheet, and the driving control unit is arranged below the ultraviolet light sensor. The ultraviolet light sensor is electrically connected with the driving control unit; one side of the position reference piece is connected with a first clamping piece, one side of the ultraviolet light sensor is connected with a second clamping piece, the second clamping piece is located below the first clamping piece, the second clamping piece is connected with a position adjusting assembly, and the position adjusting assembly is in driving connection with the driving control unit. Through cooperation of the ultraviolet light emitter, the position reference sheet, the ultraviolet light sensor and the driving control unit, the coaxiality of the first clamping piece and the second clamping piece is improved, and the mechanical property testing precision is improved. The invention further discloses an optical calibration method.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical property testing of superconducting materials, and in particular relates to an optical calibration device and method. Background Art

[0002] When superconducting materials (such as wires / strips, cables, magnets, etc.) are in an extreme multi-field environment, they are inevitably affected by multiple field factors such as electric field, magnetic field, force, and heat. Non-contact mechanical properties testing technology in a multi-field environment is an important means to explore the mechanical properties of superconducting materials. Non-contact mechanical properties testing systems are usually equipped with upper and lower fixtures for clamping and fixing the superconducting material to be tested. The upper and lower fixtures are the core components of the non-contact mechanical properties testing system. In the process of mechanical loading performed by the two in coordination, the shape and spatial position of the upper and lower fixtures will deviate from the preset state due to the susceptibility to the effects and influence of multiple field factors such as electric field, magnetic field, force, and heat, which seriously affects the accuracy and reliability of the test results of the superconducting material mechanical properties testing system. Summary of the Invention

[0003] To address the shortcomings of the prior art, the present invention provides an optical calibration device. By integrating a UV light emitter, a position reference plate, a UV light sensor, a drive control unit, and a position adjustment assembly, the device achieves positional calibration between a first clamping member and a second clamping member, thereby improving the coaxiality between the first and second clamping members and thereby enhancing the accuracy of mechanical property testing. The present invention also provides an optical calibration method.

[0004] The technical effects to be achieved by the present invention are achieved through the following technical aspects:

[0005] In a first aspect, the present invention provides an optical calibration device for a superconducting material mechanical property testing system, comprising an ultraviolet light emitter, a position reference plate, an ultraviolet light sensor, and a drive control unit, wherein the position reference plate is disposed below the ultraviolet light emitter, the ultraviolet light sensor is disposed below the position reference plate, and the ultraviolet light sensor is electrically connected to the drive control unit;

[0006] One side of the position reference plate is connected to a first clamping member, one side of the ultraviolet light sensor is connected to a second clamping member, the second clamping member is located below the first clamping member, the second clamping member is connected to a position adjustment component, and the position adjustment component is driven and connected to the drive control unit.

[0007] As a further description of the technical solution of the present invention, the ultraviolet light sensor includes a mounting base, which is connected to the second clamping member, and a light-transmitting hole is opened at the center position of the mounting base. The top of the mounting base is sequentially provided with a forward photosensitive area, a left-moving photosensitive area, a backward photosensitive area and a right-moving photosensitive area around the light-transmitting hole. The forward photosensitive area, the left-moving photosensitive area, the backward photosensitive area and the right-moving photosensitive area are electrically connected to the drive control unit respectively.

[0008] As a further description of the technical solution of the present invention, the forward-moving photosensitive area, the left-moving photosensitive area, the backward-moving photosensitive area and the right-moving photosensitive area are separated by insulating sheets, and ultraviolet photosensitive materials are arranged in the forward-moving photosensitive area, the left-moving photosensitive area, the backward-moving photosensitive area and the right-moving photosensitive area.

[0009] As a further description of the technical solution of the present invention, the position adjustment assembly includes a first mounting bracket, a second mounting bracket, a first adjusting screw and a second adjusting screw, the first adjusting screw being fixedly connected to the second mounting bracket and slidably connected to the first mounting bracket, the second adjusting screw being fixedly connected to the second clamping member and slidably connected to the second mounting bracket, and the first adjusting screw and the second adjusting screw being respectively drivenly connected to the drive control unit;

[0010] The first mounting bracket is provided with a first limiting guide rod, the second mounting bracket is provided with a second limiting guide rod, the second mounting bracket is slidably connected to the first limiting guide rod, and the second clamping member is slidably connected to the second limiting guide rod.

[0011] As a further description of the technical solution of the present invention, the drive control unit includes a control component, and a front and rear drive component and a left and right drive component electrically connected to the control component, the forward photosensitive area, the left photosensitive area, the backward photosensitive area and the right photosensitive area are respectively electrically connected to the control component, the first adjustment screw is drive-connected to the front and rear drive components, and the second adjustment screw is drive-connected to the left and right drive components.

[0012] As a further description of the technical solution of the present invention, the optical calibration device also includes a test chamber, the side wall of the test chamber is provided with a transparent window, the ultraviolet light emitter is arranged on the top of the test chamber, and the position reference plate, the ultraviolet light sensor, the drive control unit, the first clamping member, the second clamping member and the position adjustment assembly are all arranged inside the test chamber.

[0013] As a further description of the technical solution of the present invention, the optical calibration device also includes a reflector and an ultraviolet light monitor. The reflector is arranged inside the test chamber and below the ultraviolet light sensor. The ultraviolet light monitor is arranged outside the test chamber and corresponds to the position of the transparent window. The ultraviolet light monitor is used to monitor the ultraviolet light reflected by the reflector.

[0014] As a further description of the technical solution of the present invention, an anti-frost component is provided on the transparent window, and the anti-frost component is used to suppress frost on the surface of the transparent window.

[0015] As a further description of the technical solution of the present invention, the anti-frost component includes a transparent conductive layer, a conductive wire and a power controller. The transparent conductive layer is arranged on the surface of the transparent window and contacts the conductive wire. The conductive wire is electrically connected to the power controller.

[0016] In a second aspect, the present invention provides an optical calibration method for calibrating the positions of a first clamping member and a second clamping member in a superconducting material mechanical property testing system, comprising the following steps:

[0017] Turning on the ultraviolet light emitter in the test chamber and the anti-frost assembly on the transparent window, so that the ultraviolet light emitted by the ultraviolet light emitter passes through the position reference plate on the first clamping member and irradiates the ultraviolet light sensor on the second clamping member;

[0018] When ultraviolet light is irradiated on the forward photosensitive area of the ultraviolet sensor, the forward photosensitive area transmits an electrical signal to the control component, and the control component controls the front and rear drive components to drive the first adjustment screw to operate. The second mounting bracket moves forward under the drive of the first adjustment screw, prompting the second clamping member and the ultraviolet sensor to move forward;

[0019] When ultraviolet light is irradiated on the left-moving photosensitive area of the ultraviolet sensor, the left-moving photosensitive area transmits an electrical signal to the control component, and the control component controls the left and right drive components to drive the second adjustment screw to operate, and the second clamping member and the ultraviolet sensor move to the left under the drive of the second adjustment screw;

[0020] When ultraviolet light is irradiated on the rearward-moving photosensitive area of the ultraviolet sensor, the rearward-moving photosensitive area transmits an electrical signal to the control component, and the control component controls the front and rear drive components to drive the first adjustment screw to operate. The second mounting bracket moves backward under the drive of the first adjustment screw, causing the second clamping member and the ultraviolet sensor to move backward;

[0021] When ultraviolet light is irradiated on the rightward-moving photosensitive area of the ultraviolet sensor, the rightward-moving photosensitive area transmits an electrical signal to the control component, and the control component controls the left and right drive components to drive the second adjustment screw to operate, and the second clamping member and the ultraviolet sensor move to the right under the drive of the second adjustment screw;

[0022] When the ultraviolet light passes through the light-transmitting hole on the ultraviolet sensor, the ultraviolet light will be irradiated on the reflective mirror below the ultraviolet sensor. The ultraviolet light is further reflected by the reflective mirror and passes through the transparent window and irradiates the ultraviolet light monitor. The ultraviolet light monitor detects the ultraviolet light, indicating that the position calibration of the first clamping member and the second clamping member is completed.

[0023] In summary, the present invention has at least the following benefits:

[0024] The optical calibration device provided by the present invention realizes the position calibration of the first clamping member and the second clamping member through the cooperation of an ultraviolet light emitter, a position reference plate, an ultraviolet light sensor, a drive control unit and a position adjustment component, improves the coaxiality of the first clamping member and the second clamping member, solves the problem of measurement error caused by the position deviation between the first clamping member and the second clamping member in the existing superconducting material mechanical property testing system, and effectively improves the accuracy of the superconducting material mechanical property testing.

[0025] The optical calibration method provided by the present invention uses a UV sensor to provide real-time feedback on the offset of the second clamping member. Combined with position adjustment components such as the first and second adjustment screws, this method achieves submillimeter-level dynamic calibration of the second clamping member. This method addresses the problem of measurement errors caused by positional deviation between the first and second clamping members in superconducting material mechanical property testing systems, effectively improving the accuracy of superconducting material mechanical property testing. Furthermore, by providing an anti-frost component on the transparent window, the problem of frost on the transparent window surface caused by temperature differences between the inside and outside of the test chamber, which can lead to UV light deviation during transmission, is resolved, effectively improving the accuracy and reliability of optical calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of the optical calibration device according to embodiment 1 of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the ultraviolet light sensor according to Example 1 of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a position adjustment assembly according to embodiment 1 of the present invention;

[0029] Figure 4 Schematic diagram of the structure of an optical calibration device according to embodiment 2 of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the reflector and ultraviolet light monitor of Example 2 of the present invention;

[0031] Figure 6 This is a schematic structural diagram of the anti-frost assembly of Example 2 of the present invention.

[0032] Markings in the figure:

[0033] 1. Ultraviolet light emitter; 2. Position reference piece;

[0034] 3. UV sensor; 31. Mounting base; 32. Light-transmitting hole; 33. Photosensitive area moved forward; 34. Photosensitive area moved left; 35. Photosensitive area moved backward; 36. Photosensitive area moved right; 37. Insulation sheet;

[0035] 4. Drive control unit; 41. Control assembly; 42. Front and rear drive assembly; 43. Left and right drive assembly;

[0036] 5. Position adjustment assembly; 51. First mounting bracket; 52. Second mounting bracket; 53. First adjusting screw rod; 54. Second adjusting screw rod; 55. First position limiting guide rod; 56. Second position limiting guide rod;

[0037] 6. Test chamber; 61. Transparent window; 62. Anti-frost assembly; 621. Transparent conductive layer; 622. Conductive wire; 623. Power controller;

[0038] 7. Reflector; 8. Ultraviolet light monitor;

[0039] 100. First clamping member; 200. Second clamping member; 300. Superconducting material sample. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0042] Example 1

[0043] refer to Figures 1 to 3The optical calibration device provided in this embodiment is used in a non-contact mechanical property testing system for superconducting materials, and includes an ultraviolet light emitter 1, a position reference plate 2, an ultraviolet light sensor 3 and a drive control unit 4. The position reference plate 2 is arranged below the ultraviolet light emitter 1, the ultraviolet light sensor 3 is arranged below the position reference plate 2, and the ultraviolet light sensor 3 is electrically connected to the drive control unit 4.

[0044] A first clamping member 100 is connected to one side of the position reference plate 2, and a second clamping member 200 is connected to one side of the UV sensor 3. The first clamping member 100 and the second clamping member 200 are respectively used to clamp and secure the opposite ends of a superconducting material sample 300. In this embodiment, the superconducting material sample 300 is specifically a low-temperature superconducting material. The second clamping member 200 is located below the first clamping member 100 and is connected to a position adjustment assembly 5, which is in driving connection with the drive control unit 4.

[0045] It can be understood that the position of the first clamping member 100 is fixed, and the position of the second clamping member 200 can be adjusted by the position adjustment component 5. A through hole is provided at the center of the position reference plate 2. The ultraviolet light emitter 1 can emit ultraviolet light in alignment with the through hole position of the position reference plate 2. The ultraviolet light passes through the through hole of the position reference plate 2 and irradiates the ultraviolet light sensor 3. The ultraviolet light sensor 3 can sense the irradiation position of the ultraviolet light and send a signal to the drive control unit 4. The drive control unit 4 drives and controls the position adjustment component 5 to adjust the position of the second clamping member 200 based on the received information, ultimately making the first clamping member 100 and the second clamping member 200 at the same axial position, thereby achieving the position calibration of the first clamping member 100 and the second clamping member 200. The relative position deviation between the first clamping member 100 and the second clamping member 200 after position calibration can be reduced to within 1 mm, thereby improving the coaxiality of the first clamping member 100 and the second clamping member 200, thereby improving the accuracy of the non-contact mechanical property test of superconducting materials.

[0046] It should be noted that the optical calibration device of this embodiment is not limited to application in non-contact mechanical property testing systems for superconducting materials, but can also be applied to non-contact mechanical property testing systems for other composite materials.

[0047] In some embodiments, the ultraviolet sensor 3 includes a mounting base 31, which is fixedly connected to the second clamping member 200. A light-transmitting hole 32 is defined at the center of the mounting base 31. A forward-moving photosensitive area 33, a left-moving photosensitive area 34, a backward-moving photosensitive area 35, and a right-moving photosensitive area 36 are sequentially arranged on the top of the mounting base 31 around the light-transmitting hole 32. The forward-moving photosensitive area 33, the left-moving photosensitive area 34, the backward-moving photosensitive area 35, and the right-moving photosensitive area 36 are continuously arranged and collectively cover the peripheral area of the light-transmitting hole 32. The forward-moving photosensitive area 33, the left-moving photosensitive area 34, the backward-moving photosensitive area 35, and the right-moving photosensitive area 36 are each electrically connected to the drive control unit 4.

[0048] The connections between the forward photosensitive region 33, the leftward photosensitive region 34, the backward photosensitive region 35, and the rightward photosensitive region 36 are separated by insulating sheets 37. The forward photosensitive region 33, the leftward photosensitive region 34, the backward photosensitive region 35, and the rightward photosensitive region 36 are all provided with the same type of ultraviolet photosensitive material. In this embodiment, the ultraviolet photosensitive material is specifically a ZnO ultraviolet photosensitive material.

[0049] When the UV-sensitive material is exposed to UV light, it converts the UV light's energy into electrons. These electrons are then aggregated to generate a current signal, which then flows into the drive control unit 4, thereby triggering a drive control response from the drive control unit 4. For example, when UV light shines on the forward-moving photosensitive region 33, the forward-moving drive command from the drive control unit 4 is triggered, causing the position adjustment assembly 5 to drive the second clamping member 200 forward.

[0050] In some embodiments, the position adjustment assembly 5 includes a first mounting frame 51, a second mounting frame 52, a first adjustment screw 53, and a second adjustment screw 54. The first adjustment screw 53 is fixedly connected to the second mounting frame 52 and is slidably connected to the first mounting frame 51. The second adjustment screw 54 is fixedly connected to the second clamping member 200 and is slidably connected to the second mounting frame 52. The first adjustment screw 53 and the second adjustment screw 54 are respectively drive-connected to the drive control unit 4. The position adjustment of the second clamping member 200 is achieved by the first adjustment screw 53 and the second adjustment screw 54, which has a faster response speed and is more conducive to rapid calibration of the first clamping member 100 and the second clamping member 200.

[0051] A first limiting guide rod 55 is provided on the first mounting frame 51, and a second limiting guide rod 56 is provided on the second mounting frame 52. The second mounting frame 52 is slidably connected to the first limiting guide rod 55, and the second clamping member 200 is slidably connected to the second limiting guide rod 56. The first limiting guide rod 55 and the second limiting guide rod 56 respectively limit and guide the movement of the second mounting frame 52 and the second clamping member 200, preventing the second mounting frame 52 and the second clamping member 200 from shifting during the driven movement, thereby further improving the accuracy of calibration.

[0052] In some embodiments, the drive control unit 4 includes a control component 41, and a front and rear drive component 42 and a left and right drive component 43 electrically connected to the control component 41. The forward photosensitive area 33, the left photosensitive area 34, the backward photosensitive area 35 and the right photosensitive area 36 are respectively electrically connected to the control component 41. The first adjustment screw 53 is driven and connected to the front and rear drive components 42, and the second adjustment screw 54 is driven and connected to the left and right drive components 43.

[0053] The optical calibration device of this embodiment realizes the position calibration of the first clamping member and the second clamping member through the cooperation of the ultraviolet light emitter, the position reference plate, the ultraviolet light sensor, the drive control unit and the position adjustment component, improves the coaxiality of the first clamping member and the second clamping member, solves the problem of measurement error caused by the position deviation between the first clamping member and the second clamping member in the existing non-contact mechanical properties testing system of superconducting materials, and effectively improves the accuracy of non-contact mechanical properties testing of superconducting materials.

[0054] Example 2

[0055] As a further optimization of Example 1, refer to Figures 4 to 6 The optical calibration device also includes a test chamber 6, with a transparent window 61 provided on its sidewall. A DIC device for non-contact mechanical property testing of superconducting materials can be installed outside of this window 61. A UV emitter 1 is located at the top of test chamber 6, while a position reference plate 2, UV sensor 3, drive control unit 4, first clamp 100, second clamp 200, and position adjustment assembly 5 are all located within test chamber 6.

[0056] In this embodiment, the test chamber 6 is specifically a vacuum dewar. By cooperating with other equipment, the vacuum dewar can create an extreme multi-field environment within the vacuum dewar, such as extremely low temperatures and strong magnetic fields. This allows for non-contact mechanical property testing of superconducting materials in such an extreme multi-field environment. The UV emitter 1 and UV sensor 3 in this embodiment can be made of materials resistant to extremely low temperatures and strong magnetic fields. This ensures that the UV emitter 1 and UV sensor 3 maintain high stability and reliability in such extreme multi-field environments as vacuum, extremely low temperatures, and strong magnetic fields, thereby ensuring the accuracy and reliability of the optical calibration device.

[0057] As a further optimization, the optical calibration device further includes a reflector 7 and an ultraviolet light monitor 8. The reflector 7 is located inside the test chamber 6 and below the ultraviolet light sensor 3. The ultraviolet light monitor 8 is located outside the test chamber 6 and corresponds to the position of the transparent window 61. The ultraviolet light monitor 8 is used to monitor the ultraviolet light reflected by the reflector 7 to determine whether the first clamping member 100 and the second clamping member 200 have completed the position calibration. When the ultraviolet light emitted by the ultraviolet light emitter 1 passes through the light-transmitting hole 32, the ultraviolet light will be irradiated on the reflector 7. The ultraviolet light is further reflected by the reflector 7 through the transparent window 61 and irradiated on the ultraviolet light monitor 8. Once the ultraviolet light monitor 8 detects the ultraviolet light, it indicates that the first clamping member 100 and the second clamping member 200 have completed the position calibration.

[0058] When an extremely low temperature environment is formed within the test chamber 6, a significant temperature difference will occur between the inside and outside of the test chamber 6, which can easily cause frost to form on the surface of the transparent window 61. As a further optimization, an anti-frost assembly 62 can be provided on the transparent window 61 to inhibit frost formation on the surface of the transparent window 61. In one embodiment, the anti-frost assembly 62 may include a transparent conductive layer 621, a conductive wire 622, and a power controller 623. The transparent conductive layer 621 is disposed on the surface of the transparent window 61 and contacts the conductive wire 622. The conductive wire 622 is electrically connected to the power controller 623. The power controller 623 is used to control and adjust the current in the conductive wire 622.

[0059] In this embodiment, the transparent conductive layer 621 is specifically a metal coating. When the power controller 623 transmits current to the conductive wires 622, the current flowing through the conductive wires 622 generates heat. The heat generated by the conductive wires 622 is further transferred to the transparent conductive layer 621, causing it to heat up, thereby suppressing frost on the surface of the transparent window 61. The provision of the anti-frost assembly 62 on the transparent window 61 solves the problem of frost on the transparent window 61 caused by temperature differences between the inside and outside of the test chamber 6, which can lead to deviation of the ultraviolet light during transmission. This effectively improves the accuracy and reliability of optical calibration.

[0060] Example 3

[0061] refer to Figures 1 to 6 The optical calibration method provided in this embodiment is used for position calibration of the first clamping member 100 and the second clamping member 200 in a superconducting material mechanical property testing system, and includes the following steps:

[0062] The UV emitter 1 in the test chamber 6 and the anti-frost assembly 62 on the transparent window 61 are turned on. The power controller 623 transmits current to the conductive wire 622, causing the transparent conductive layer 621 to generate heat, thereby suppressing frost on the surface of the transparent window 61. The UV light emitted by the UV emitter 1 passes through the through hole at the center of the position reference plate 2 on the first clamping member 100 and irradiates the UV sensor 3 on the second clamping member 200.

[0063] When ultraviolet light is irradiated on the forward photosensitive area 33 of the ultraviolet sensor 3, the forward photosensitive area 33 transmits an electrical signal to the control component 41. The control component 41 controls the front and rear drive components 42 to drive the first adjustment screw 53 to operate. The second mounting frame 52 moves forward under the drive of the first adjustment screw 53, prompting the second clamping member 200 and the ultraviolet sensor 3 to move forward.

[0064] When ultraviolet light is irradiated on the left-moving photosensitive area 34 of the ultraviolet sensor 3, the left-moving photosensitive area 34 transmits an electrical signal to the control component 41. The control component 41 controls the left-right driving component 43 to drive the second adjusting screw 54 to operate. The second clamping member 200 and the ultraviolet sensor 3 move leftward under the drive of the second adjusting screw 54.

[0065] When ultraviolet light irradiates the rearward-moving photosensitive area 35 on the ultraviolet sensor 3, the rearward-moving photosensitive area 35 transmits an electrical signal to the control component 41. The control component 41 controls the front-rear driving component 42 to drive the first adjusting screw 53 to operate. The second mounting bracket 52 moves backward under the drive of the first adjusting screw 53, causing the second clamping member 200 and the ultraviolet sensor 3 to move backward.

[0066] When ultraviolet light is irradiated on the rightward-moving photosensitive area 36 of the ultraviolet sensor 3, the rightward-moving photosensitive area 36 transmits an electrical signal to the control component 41. The control component 41 controls the left-right driving component 43 to drive the second adjusting screw 54 to operate. The second clamping member 200 and the ultraviolet sensor 3 move to the right under the drive of the second adjusting screw 54.

[0067] When the ultraviolet light passes through the light-transmitting hole 32 on the ultraviolet sensor 3, the ultraviolet light will be irradiated on the reflective mirror 7 below the ultraviolet sensor 3. The ultraviolet light is further reflected by the reflective mirror 7 and irradiated on the ultraviolet light monitor 8. The ultraviolet light monitor 8 detects the ultraviolet light, indicating that the first clamping member 100 and the second clamping member 200 are located at the same axial position, and the position calibration of the first clamping member 100 and the second clamping member 200 is completed.

[0068] It should be noted that before the first clamping member 100 and the second clamping member 200 complete the position calibration, the control component 41 will continue to control the driving status of the front and rear driving components 42 and the left and right driving components 43 to continuously adjust the position of the second clamping member 200 and the ultraviolet sensor 3 until the ultraviolet light passes through the light-transmitting hole 32.

[0069] The optical calibration method of this embodiment uses a UV sensor to provide real-time feedback on the offset of the second clamping member. Combined with position adjustment components such as the first and second adjustment screws, this method achieves submillimeter-level dynamic calibration of the second clamping member. This method addresses the problem of measurement errors caused by positional deviation between the first and second clamping members in superconducting material mechanical property testing systems, effectively improving the accuracy of superconducting material mechanical property testing. Furthermore, by providing an anti-frost component on the transparent window, the problem of frost on the transparent window caused by temperature differences between the inside and outside of the test chamber, which can lead to UV light deviation during transmission, is resolved, effectively improving the accuracy and reliability of optical calibration.

[0070] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0071] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0072] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] Although the present invention has been described with reference to the above specific embodiments, it will be apparent to those skilled in the art that many substitutions, modifications, and variations can be made based on the above. Therefore, all such substitutions, modifications, and variations are intended to be encompassed within the spirit and scope of the appended claims.

Claims

1. An optical calibration device for a superconducting material mechanical properties testing system, characterized in that: The device comprises an ultraviolet light emitter (1), a position reference plate (2), an ultraviolet light sensor (3) and a drive control unit (4), wherein the position reference plate (2) is arranged below the ultraviolet light emitter (1), the ultraviolet light sensor (3) is arranged below the position reference plate (2), and the ultraviolet light sensor (3) is electrically connected to the drive control unit (4); One side of the position reference plate (2) is connected to a first clamping member (100), one side of the ultraviolet light sensor (3) is connected to a second clamping member (200), the second clamping member (200) is located below the first clamping member (100), the second clamping member (200) is connected to a position adjustment component (5), and the position adjustment component (5) is drivingly connected to the drive control unit (4).

2. The optical calibration device according to claim 1, wherein: The ultraviolet light sensor (3) comprises a mounting seat (31), the mounting seat (31) is connected to the second clamping member (200), a light-transmitting hole (32) is provided at the center of the mounting seat (31), a forward photosensitive area (33), a leftward photosensitive area (34), a backward photosensitive area (35) and a rightward photosensitive area (36) are sequentially arranged on the top of the mounting seat (31) around the light-transmitting hole (32), and the forward photosensitive area (33), the leftward photosensitive area (34), the backward photosensitive area (35) and the rightward photosensitive area (36) are respectively electrically connected to the driving control unit (4).

3. The optical calibration device according to claim 2, wherein: The forward-moving photosensitive area (33), the left-moving photosensitive area (34), the backward-moving photosensitive area (35) and the right-moving photosensitive area (36) are separated by an insulating sheet (37), and ultraviolet light-sensitive materials are distributed in the forward-moving photosensitive area (33), the left-moving photosensitive area (34), the backward-moving photosensitive area (35) and the right-moving photosensitive area (36).

4. The optical calibration device according to claim 2, wherein: The position adjustment assembly (5) comprises a first mounting frame (51), a second mounting frame (52), a first adjusting screw rod (53) and a second adjusting screw rod (54); the first adjusting screw rod (53) is fixedly connected to the second mounting frame (52) and is slidably connected to the first mounting frame (51); the second adjusting screw rod (54) is fixedly connected to the second clamping member (200) and is slidably connected to the second mounting frame (52); the first adjusting screw rod (53) and the second adjusting screw rod (54) are respectively drive-connected to the drive control unit (4); The first mounting frame (51) is provided with a first position-limiting guide rod (55), the second mounting frame (52) is provided with a second position-limiting guide rod (56), the second mounting frame (52) is slidably connected to the first position-limiting guide rod (55), and the second clamping member (200) is slidably connected to the second position-limiting guide rod (56).

5. The optical calibration device according to claim 4, wherein: The drive control unit (4) comprises a control component (41), and a front-back drive component (42) and a left-right drive component (43) electrically connected to the control component (41); the front-moving photosensitive area (33), the left-moving photosensitive area (34), the rear-moving photosensitive area (35) and the right-moving photosensitive area (36) are electrically connected to the control component (41), respectively; the first adjusting screw rod (53) is drivingly connected to the front-back drive component (42), and the second adjusting screw rod (54) is drivingly connected to the left-right drive component (43).

6. The optical calibration device according to claim 5, characterized in that The invention also includes a test chamber (6), wherein a side wall of the test chamber (6) is provided with a transparent window (61), the ultraviolet light emitter (1) is provided on the top of the test chamber (6), and the position reference plate (2), the ultraviolet light sensor (3), the drive control unit (4), the first clamping member (100), the second clamping member (200) and the position adjustment assembly (5) are all provided inside the test chamber (6).

7. The optical calibration device according to claim 6, wherein: The test chamber (6) further comprises a reflector (7) and an ultraviolet light monitor (8), wherein the reflector (7) is arranged inside the test chamber (6) and below the ultraviolet light sensor (3), and the ultraviolet light monitor (8) is arranged outside the test chamber (6) and corresponds to the position of the transparent window (61), and the ultraviolet light monitor (8) is used to monitor the ultraviolet light reflected by the reflector (7).

8. The optical calibration device according to claim 7, wherein: An anti-frost component (62) is provided on the transparent window (61), and the anti-frost component (62) is used to suppress frost on the surface of the transparent window (61).

9. The optical calibration device according to claim 8, wherein: The anti-frost component (62) comprises a transparent conductive layer (621), a conductive wire (622) and a power controller (623); the transparent conductive layer (621) is arranged on the surface of the transparent window (61) and is in contact with the conductive wire (622); and the conductive wire (622) is electrically connected to the power controller (623).

10. An optical calibration method for calibrating the positions of a first clamping member (100) and a second clamping member (200) in a superconducting material mechanical property testing system, characterized in that: The following steps are involved: The ultraviolet light emitter (1) in the test chamber (6) and the anti-frost assembly (62) on the transparent window (61) are turned on, and the ultraviolet light emitted by the ultraviolet light emitter (1) passes through the position reference plate (2) on the first clamping member (100) and irradiates the ultraviolet light sensor (3) on the second clamping member (200); When ultraviolet light is irradiated on the forward photosensitive area (33) on the ultraviolet sensor (3), the forward photosensitive area (33) transmits an electrical signal to the control component (41), and the control component (41) controls the front and rear drive components (42) to drive the first adjustment screw (53) to operate, and the second mounting frame (52) moves forward under the drive of the first adjustment screw (53), prompting the second clamping member (200) and the ultraviolet sensor (3) to move forward; When ultraviolet light irradiates the leftward-moving photosensitive area (34) on the ultraviolet sensor (3), the leftward-moving photosensitive area (34) transmits an electrical signal to the control component (41), and the control component (41) controls the left and right driving components (43) to drive the second adjusting screw (54) to operate, and the second clamping member (200) and the ultraviolet sensor (3) move leftward under the drive of the second adjusting screw (54); When ultraviolet light is irradiated on the rearward-moving photosensitive area (35) on the ultraviolet sensor (3), the rearward-moving photosensitive area (35) transmits an electrical signal to the control component (41), and the control component (41) controls the front-rear driving component (42) to drive the first adjusting screw (53) to operate, and the second mounting frame (52) moves backward under the drive of the first adjusting screw (53), prompting the second clamping member (200) and the ultraviolet sensor (3) to move backward; When ultraviolet light is irradiated on the rightward-moving photosensitive area (36) on the ultraviolet sensor (3), the rightward-moving photosensitive area (36) transmits an electrical signal to the control component (41), and the control component (41) controls the left and right driving components (43) to drive the second adjusting screw (54) to operate, and the second clamping member (200) and the ultraviolet sensor (3) move to the right under the drive of the second adjusting screw (54); When the ultraviolet light passes through the light-transmitting hole (32) on the ultraviolet light sensor (3), the ultraviolet light will be irradiated on the reflective mirror (7) below the ultraviolet light sensor (3). The ultraviolet light is further reflected by the reflective mirror (7) and irradiated on the ultraviolet light monitor (8). The ultraviolet light monitor (8) detects the ultraviolet light, indicating that the position calibration of the first clamping member (100) and the second clamping member (200) is completed.

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