Shorted slider based radio frequency resonant cavity

Abstract

The application relates to a short-circuit slider-based radio frequency resonant cavity, which comprises an input coaxial transmission line; a connector connected with the input coaxial transmission line; a first output coaxial transmission line and a second output coaxial transmission line, both of which are connected with the connector; a first displacement mechanism arranged on the first output coaxial transmission line and a second displacement mechanism arranged on the second output coaxial transmission line; the first output coaxial transmission line and the second output coaxial transmission line both comprise an inner conductor, a short-circuit slider and an outer conductor, the outer conductor is coaxially sleeved outside the inner conductor, a coaxial cavity is formed between the outer conductor and the inner conductor, the short-circuit slider is connected with the first displacement mechanism and the second displacement mechanism, and the short-circuit slider is movably arranged in the coaxial cavity. The effect of obtaining a large voltage by means of a small power is realized, the possible sparking points can be detected under the working condition of a large voltage, and then measures are taken in advance to prevent the sparking phenomenon from occurring, so that the stable operation of an ion cyclotron wave power transmission system is ensured.

Description

Technical Field

[0001] This application relates to the technical field of detection in ion cyclotron wave heating systems, and in particular to a radio frequency resonant cavity based on a short-circuit slider. Background Technology

[0002] For the central heating of fusion reactors, ion cyclotron radio frequency heating (ICRH) is the industry's preferred method. However, achieving the ion temperatures required for fusion requires continuous injection of tens of megawatts of ion cyclotron wave power into the plasma, which places a significant strain on the load-bearing capacity of the ion cyclotron wave power transmission system. Furthermore, this introduces a safety hazard: excessively high transmission line voltage under high-power conditions can cause arcing in microwave components, leading to safety risks and affecting the reliability of the ion cyclotron wave power transmission system. Summary of the Invention

[0003] Therefore, it is necessary to provide a radio frequency resonant cavity based on a short-circuit slider to address the problem that excessively high transmission line voltage in traditional technology causes arcing in microwave components, affecting the reliability of ion cyclotron wave power transmission systems.

[0004] This application proposes a radio frequency resonant cavity based on a short-circuit slider, which includes:

[0005] Input coaxial transmission line;

[0006] Connector, the connector being connected to the input coaxial transmission line;

[0007] A first output coaxial transmission line and a second output coaxial transmission line are both connected to the connector.

[0008] A first shifting mechanism and a second shifting mechanism, wherein the first shifting mechanism is mounted on the first output coaxial transmission line and the second shifting mechanism is mounted on the second output coaxial transmission line;

[0009] The first output coaxial transmission line and the second output coaxial transmission line each include an inner conductor, a short-circuit slider and an outer conductor. The outer conductor is coaxially sleeved outside the inner conductor, and a coaxial cavity is formed between the outer conductor and the inner conductor. The short-circuit slider is connected to the first shifting mechanism and the second shifting mechanism, and the short-circuit slider is movably disposed within the coaxial cavity.

[0010] This solution, based on a short-circuit slider, is applied in experimental scenarios where microwave components can withstand high voltage limits under high current and high voltage without arcing. Specifically, during testing, a small amount of input power is applied to the input coaxial transmission line so that the power can be evenly distributed to the first and second output coaxial transmission lines via connectors. The short-circuit slider is driven by a first and second shifting mechanism to move between the inner and outer conductors, flexibly changing the position of the short-circuit point between them. This alters the real and imaginary parts of the impedance on the first and second output coaxial transmission lines, thereby adjusting the stub length. By reducing the input impedance, the transmission line voltage is increased, achieving a large voltage with very little power. This allows for the detection of potential arcing points under high voltage conditions, enabling preventative measures to be taken and ensuring stable operation of the ion cyclotron power transmission system under high-power, long-pulse conditions.

[0011] The technical solution of this application will be further described below:

[0012] In one embodiment, the connector is a T-type connector having a first interface, a second interface, and a third interface. The first interface is connected to one end of the input coaxial transmission line, the second interface is connected to one end of the first output coaxial transmission line, and the third interface is connected to one end of the second output coaxial transmission line.

[0013] In one embodiment, the first output coaxial transmission line and the second output coaxial transmission line are arranged symmetrically side by side with intervals.

[0014] In one embodiment, both the first output coaxial transmission line and the second output coaxial transmission line include a horizontal segment transmission line and a vertical segment transmission line connected to each other. The horizontal segment transmission line is connected to the connector, and the vertical segment transmission line is connected to the end of the horizontal segment transmission line away from the connector.

[0015] The short-circuit slider is movable and height-adjustable within the vertical transmission line.

[0016] In one embodiment, the short-circuit slider is an annular structure, and a first textured structure is formed protruding on a portion of the outer annular wall of the short-circuit slider, the first textured structure being in sliding contact with the outer conductor.

[0017] In one embodiment, a second textured structure protrudes from a portion of the inner ring wall of the short-circuit slider, and the second textured structure slides in contact with the inner conductor.

[0018] In one embodiment, the radio frequency resonant cavity based on the short-circuit slider further includes a voltage detector disposed in the first output coaxial transmission line and the second output coaxial transmission line.

[0019] In one embodiment, both the first shifting mechanism and the second shifting mechanism include a power source, a mounting base, a bracket, and a lifting member. The mounting base is mounted on the first output coaxial transmission line and the second output coaxial transmission line via the bracket. The power source is disposed on the mounting base, and the output end of the power source is connected to the short-circuit slider via the lifting member.

[0020] In one embodiment, the bracket includes at least two support rods, which are arranged at intervals along the circumferential direction, and a hollow groove is formed between adjacent support rods.

[0021] In one embodiment, the radio frequency resonant cavity based on the short-circuit slider further includes a data processor, a thermal imager, and a thermocouple. The thermocouple is mounted on the vertical transmission line and electrically connected to the data processor, and the lens of the thermal imager is positioned opposite to the vertical transmission line. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an isometric structural diagram of a radio frequency resonant cavity based on a short-circuit slider in one embodiment.

[0025] Figure 2 for Figure 1 A top-view structural diagram.

[0026] Figure 3 This is a schematic diagram of the assembly structure of the inner conductor, the short-circuit slider, and the outer conductor in one embodiment.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. RF resonant cavity based on short-circuit slider; 10. Input coaxial transmission line; 20. Connector; 21a. First interface; 22a. Second interface; 23a. Third interface; 30. First output coaxial transmission line; 30a. Horizontal segment transmission line; 30b. Vertical segment transmission line; 40. Second output coaxial transmission line; 50. Inner conductor; 50a. Short-circuit slider; 51a. First textured structure; 50b. Outer conductor; 60. First shifting mechanism; 70. Second shifting mechanism; 80. Bracket; 81. Support rod; 82. Hollowed-out groove. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 and Figure 2 This application illustrates an embodiment of a radio frequency resonant cavity 100 based on a short-circuit slider, which includes an input coaxial transmission line 10, a connector 20, a first output coaxial transmission line 30, and a second output coaxial transmission line 40.

[0036] The radio frequency resonant cavity 100 based on the short-circuit slider is actually a test platform used to test the high voltage limit that various microwave components can withstand under high current and high voltage, so as to prevent arcing of microwave components in actual use.

[0037] In use, the input coaxial transmission line 10 is used to connect to an RF transmitter (such as an RF source), and the RF transmitter outputs power to the input coaxial transmission line 10.

[0038] Connector 20 is connected to input coaxial transmission line 10; first output coaxial transmission line 30 and second output coaxial transmission line 40 are both connected to connector 20; first shifting mechanism 60 and second shifting mechanism 70, the first shifting mechanism 60 is mounted on the first output coaxial transmission line 30 and the second shifting mechanism 70 is mounted on the second output coaxial transmission line 40.

[0039] Please continue reading. Figure 3 The first output coaxial transmission line 30 and the second output coaxial transmission line 40 both include an inner conductor 50, a short-circuit slider 50a and an outer conductor 50b. The outer conductor 50b is coaxially sleeved outside the inner conductor 50, and a coaxial cavity is formed between the outer conductor 50b and the inner conductor 50. The short-circuit slider 50a is connected to the first shifting mechanism 60 and the second shifting mechanism 70, and the short-circuit slider 50a is movably disposed in the coaxial cavity.

[0040] Both the inner conductor 50 and the outer conductor 50b are made of highly conductive materials, and the cavity dimensions of the coaxial cavity are precisely calculated to ensure stable radio frequency signal transmission in the high-frequency range. During high-power operation, the coaxial cavity's dimensional design ensures low radiation loss and high transmission efficiency. Therefore, this structure effectively suppresses electromagnetic interference, preventing external noise signals from affecting system performance. Its enclosed structure maintains low stray radiation under high-power operation, reducing electromagnetic compatibility issues between the system and external devices, ensuring long-term reliable operation. It possesses extremely strong high-power tolerance, maintaining stable performance even at 500kW high-power output. This characteristic allows it to adapt to the demands of high-power pulse signals and withstand mechanical and thermal stresses caused by high-power current and voltage fluctuations. Due to the compact design and good thermal conductivity of the coaxial cavity, it effectively disperses the heat generated by high power, preventing overheating and system damage. This characteristic ensures the system's reliability during long-term operation. The coaxial cavity's mechanical structure has high stability, maintaining a stable form in high-voltage and high-power operating environments. The tight fit between the inner conductor 50 and the outer conductor 50b effectively reduces the impact of mechanical vibration and thermal expansion during operation.

[0041] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: The RF resonant cavity 100 based on the short-circuit slider of this solution is applied in test scenarios where microwave components can withstand high voltage limits under high current and high voltage without arcing. Specifically, during testing, a very small amount of input power is applied to the input coaxial transmission line 10 so that the power can be evenly distributed to the first output coaxial transmission line 30 and the second output coaxial transmission line 40 through the connector 20. The short-circuit slider 50a is driven between the inner conductor 50 and the outer conductor 70 by means of the first shifting mechanism 60 and the second shifting mechanism 70. The movement of conductors 50b allows for flexible alteration of the short-circuit point between the inner and outer conductors 50b, thereby changing the real and imaginary parts of the impedance on the first and second output coaxial transmission lines 30 and 40. This adjustment of the stub length enables the reduction of input impedance to increase the transmission line voltage, achieving the effect of obtaining a large voltage with very little power. Consequently, under high-voltage conditions, potential arcing points can be detected, allowing for proactive measures to prevent arcing and ensuring stable operation of the ion cyclotron wave power transmission system under high-power long pulses.

[0042] In one embodiment, the first output coaxial transmission line 30 and the second output coaxial transmission line 40 are arranged symmetrically side by side with a gap between them. On the one hand, this arrangement makes it easier to adapt to the available space for installation of the first output coaxial transmission line 30 and the second output coaxial transmission line 40. On the other hand, the safety distance formed by the gap also avoids mutual interference between the first output coaxial transmission line 30 and the second output coaxial transmission line 40. Furthermore, the symmetrical arrangement of the first output coaxial transmission line 30 and the second output coaxial transmission line 40 has the ability to evenly distribute the power input from the input coaxial transmission line 10.

[0043] Assuming a power load of 10kW is applied from the input coaxial transmission line 10, and because the first output coaxial transmission line 30 and the second output coaxial transmission line 40 are symmetrically designed, the power is evenly distributed between the first output coaxial transmission line 30 and the second output coaxial transmission line 40, each receiving 5kW. Therefore, in the transmission line, the relationship between power, voltage, and resistance is as follows:

[0044]

[0045] Therefore, the voltage on the transmission line can be obtained as:

[0046]

[0047] Substituting P=5kW and R=0.1 ohms, the value of U can be calculated.

[0048] The impedance of the first output coaxial transmission line 30 is:

[0049] Z1=R+jX

[0050] The impedance of the second output coaxial transmission line 40 is:

[0051] Z2=R-jX

[0052] Where X is reactance, generated by inductance or capacitance, and the unit is ohms. The imaginary unit j (commonly used in engineering, denoted as i in mathematics) is used to distinguish between the real and imaginary parts, and its phase characteristic corresponds to the phase difference between voltage and current. These two transmission lines are connected in parallel, and the total impedance after parallel connection is required to have a real part of 50 ohms and an imaginary part of 0 (i.e., pure resistance).

[0053]

[0054] Therefore:

[0055]

[0056] The relationship between R and X is obtained:

[0057]

[0058] Based on the experimental values ​​in the actual equipment, taking R=0.1 ohms, we can obtain: X=3.16 or X=-3.16.

[0059] Please continue reading. Figure 1 In an optional embodiment, connector 20 is a T-type connector, which has a first interface 21a, a second interface 22a and a third interface 23a. The first interface 21a is connected to one end of the input coaxial transmission line 10, the second interface 22a is connected to one end of the first output coaxial transmission line 30, and the third interface 23a is connected to one end of the second output coaxial transmission line 40.

[0060] Therefore, by using a T-type connector, and through the first interface 21a, the second interface 22a, and the third interface 23a of the T-type connector, it is convenient to connect to the input coaxial transmission line 10, the first output coaxial transmission line 30, and the second output coaxial transmission line 40 respectively, so as to assemble and fix the input coaxial transmission line 10, the first output coaxial transmission line 30, and the second output coaxial transmission line 40, and facilitate the transmission of the power loaded on the input coaxial transmission line 10 to the first output coaxial transmission line 30 and the second output coaxial transmission line 40 through the T-type connector.

[0061] Optionally, the first interface 21a and the input coaxial transmission line 10, the second interface 22a and the first output coaxial transmission line 30, and the third interface 23a and the second output coaxial transmission line 40 can be fixed or detachably assembled by any of the following methods: snap-fit ​​connection, threaded connection, adhesive bonding, welding, etc. The specific method can be flexibly selected according to actual needs.

[0062] Furthermore, based on the above embodiments, both the first output coaxial transmission line 30 and the second output coaxial transmission line 40 include a horizontal segment transmission line 30a and a vertical segment transmission line 30b connected to each other. The horizontal segment transmission line 30a is connected to the connector 20, and the vertical segment transmission line 30b is connected to the end of the horizontal segment transmission line 30a away from the connector 20.

[0063] The short-circuit slider 50a is movable and height-adjustable in the vertical section of the transmission line 30b.

[0064] In other words, the horizontal transmission line 30a and the vertical transmission line 30b form an L-shaped structure. The horizontal transmission line 30a extends horizontally, while the vertical transmission line 30b extends vertically. This design allows for the rational and full utilization of both horizontal and vertical space within the test site, avoiding the undue emphasis on either horizontal or vertical space and thus avoiding excessive space requirements that could affect the applicability of the RF resonant cavity 100 based on the short-circuit slider. The short-circuit slider 50a moves up and down within the vertical transmission line 30b, also fully utilizing vertical space to adjust and obtain different branch lengths.

[0065] Optionally, the horizontal transmission line 30a and the vertical transmission line 30b can be an integral structure or detachable and assembled, depending on actual needs. For example, in this application, the corner between the horizontal transmission line 30a and the vertical transmission line 30b is connected by an arc-shaped transmission line to meet the needs of the horizontal transmission line 30a and the vertical transmission line 30b changing in the spatial extension direction.

[0066] Please continue reading. Figure 3 In one optional embodiment, the short-circuit slider 50a has an annular structure, and a first textured structure 51a protrudes from a portion of the outer annular wall of the short-circuit slider 50a, the first textured structure 51a being in sliding contact with the outer conductor 50b. Further, a second textured structure protrudes from a portion of the inner annular wall of the short-circuit slider 50a, the second textured structure being in sliding contact with the inner conductor 50.

[0067] This configuration, with the help of the first textured structure 51a and the second textured structure, ensures normal short-circuit contact between the short-circuit slider 50a and the inner conductor 50 and the outer conductor 50b. In addition, it can reduce the contact area between the short-circuit slider 50a and the inner conductor 50 and the outer conductor 50b, thereby reducing the frictional resistance during relative sliding, improving the smoothness of the lifting and sliding of the short-circuit slider 50a, and reducing the load on the first shifting mechanism 60 and the second shifting mechanism 70 to reduce operating energy consumption.

[0068] Furthermore, lubricating media such as grease or lubricating oil can be provided between the first textured structure 51a and the outer conductor 50b and / or between the second textured structure and the inner conductor 50 to further reduce the frictional resistance of relative sliding.

[0069] For example, the first texture structure 51a and the second texture structure can be multiple strip-shaped protrusions evenly spaced around the circumference of the short-circuit slider 50a, or array protrusions, etc. The specific structure can be flexibly selected according to actual needs.

[0070] Furthermore, based on any of the above embodiments, the RF resonant cavity 100 based on the short-circuit slider also includes a voltage detector, which is disposed in the first output coaxial transmission line 30 and the second output coaxial transmission line 40. The voltage detector can detect the high voltage values ​​in the first output coaxial transmission line 30 and the second output coaxial transmission line 40 in real time and accurately during testing, so as to compare them with the withstand voltage limit of the microwave components. This facilitates the implementation of preventative measures to prevent arcing and ensures the stable operation of the ion cyclotron wave power transmission system under high-power long pulses.

[0071] In one embodiment, both the first shifting mechanism 60 and the second shifting mechanism 70 include a power source, a mounting base, a bracket 80, and a lifting member. The mounting base is mounted on the first output coaxial transmission line 30 and the second output coaxial transmission line 40 via the bracket 80. The power source is mounted on the mounting base, and the output end of the power source is connected to the short-circuit slider 50a via the lifting member. The mounting base is used to directly mount and fix the power source, and the bracket 80 is used to support the mounting base and the power source a certain distance above the first output coaxial transmission line 30 and the second output coaxial transmission line 40. This allows for a larger stroke for raising and lowering the short-circuit slider 50a while ensuring the safety of the power source and preventing it from being affected by the heat and radiation of the first output coaxial transmission line 30 and the second output coaxial transmission line 40 during operation.

[0072] For example, in an optional embodiment, the bracket 80 includes at least two support rods 81, which are spaced apart in a circumferential direction, and a slot 82 is formed between adjacent support rods 81. Using at least two circumferentially arranged support rods 81 to provide mounting support for the mounting base results in a simple structure, good support stability, and low implementation cost. Furthermore, the slot 82 formed between adjacent support rods 81 facilitates heat dissipation and allows for real-time observation of the movement of the lifting component and / or the short-circuit slider 50a.

[0073] In one embodiment, the RF resonant cavity 100 based on the short-circuit slider further includes a data processor, a thermal imager, and a thermocouple. The thermocouple is mounted on the vertical transmission line 30b and electrically connected to the data processor. The lens of the thermal imager is positioned opposite to the vertical transmission line 30b. The thermocouple allows for real-time temperature detection during the experiment, and the thermal imager can also obtain real-time temperature image data of the vertical transmission line 30b using thermal imaging technology. This facilitates the feedback of data to the data processor when arcing is imminent, enabling matching with the voltage data from the voltage detector. This allows experimenters to more accurately determine the high voltage value that the microwave component can withstand before arcing occurs.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A radio frequency resonant cavity based on a short-circuit slider, characterized in that, include: Input coaxial transmission line; Connector, the connector being connected to the input coaxial transmission line; A first output coaxial transmission line and a second output coaxial transmission line are both connected to the connector. A first shifting mechanism and a second shifting mechanism, wherein the first shifting mechanism is mounted on the first output coaxial transmission line and the second shifting mechanism is mounted on the second output coaxial transmission line; The first output coaxial transmission line and the second output coaxial transmission line each include an inner conductor, a short-circuit slider and an outer conductor. The outer conductor is coaxially sleeved outside the inner conductor, and a coaxial cavity is formed between the outer conductor and the inner conductor. The short-circuit slider is connected to the first shifting mechanism and the second shifting mechanism, and the short-circuit slider is movably disposed within the coaxial cavity. The short-circuit slider is a ring structure, and a first textured structure is formed on part of the outer ring wall of the short-circuit slider. The first textured structure is in sliding contact with the outer conductor.

2. The radio frequency resonant cavity based on a short-circuit slider according to claim 1, characterized in that, The connector is a T-type connector, which has a first interface, a second interface and a third interface. The first interface is connected to one end of the input coaxial transmission line, the second interface is connected to one end of the first output coaxial transmission line, and the third interface is connected to one end of the second output coaxial transmission line.

3. The radio frequency resonant cavity based on a short-circuit slider according to claim 1, characterized in that, The first output coaxial transmission line and the second output coaxial transmission line are arranged symmetrically side by side with intervals.

4. The radio frequency resonant cavity based on a short-circuit slider according to claim 3, characterized in that, Both the first output coaxial transmission line and the second output coaxial transmission line include a horizontal segment transmission line and a vertical segment transmission line connected to each other. The horizontal segment transmission line is connected to the connector, and the vertical segment transmission line is connected to the end of the horizontal segment transmission line away from the connector. The short-circuit slider is movable and height-adjustable within the vertical transmission line.

5. The radio frequency resonant cavity based on a short-circuit slider according to claim 1, characterized in that, A second textured structure protrudes from a portion of the inner ring wall of the short-circuit slider, and the second textured structure slides in contact with the inner conductor.

6. The radio frequency resonant cavity based on a short-circuit slider according to claim 1, characterized in that, The radio frequency resonant cavity based on the short-circuit slider also includes a voltage detector, which is disposed in the first output coaxial transmission line and the second output coaxial transmission line.

7. The radio frequency resonant cavity based on a short-circuit slider according to claim 1, characterized in that, Both the first shifting mechanism and the second shifting mechanism include a power source, a mounting base, a bracket, and a lifting member. The mounting base is mounted on the first output coaxial transmission line and the second output coaxial transmission line via the bracket. The power source is disposed on the mounting base, and the output end of the power source is connected to the short-circuit slider via the lifting member.

8. The radio frequency resonant cavity based on a short-circuit slider according to claim 7, characterized in that, The bracket includes at least two support rods, which are arranged at intervals along the circumferential direction, and a hollow groove is formed between two adjacent support rods.

9. The radio frequency resonant cavity based on a short-circuit slider according to claim 4, characterized in that, The radio frequency resonant cavity based on the short-circuit slider also includes a data processor, a thermal imager, and a thermocouple. The thermocouple is installed on the vertical transmission line and electrically connected to the data processor. The lens of the thermal imager is positioned opposite to the vertical transmission line.

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