Time-of-flight mass analyser

Abstract

The application relates to a time-of-flight mass analyzer, comprising: an outer cavity; a field-free flight zone assembly, an acceleration zone assembly, a deflection plate assembly, a reflection zone assembly and a detection zone assembly, the field-free flight zone assembly being detachably connected with the inner wall of the outer cavity; the acceleration zone assembly comprising an acceleration zone fixing member and an acceleration zone module; the deflection plate assembly being arranged in the outer cavity and detachably connected with the field-free flight zone assembly; the reflection zone assembly being detachably connected with the inner wall of the outer cavity; and the detection zone assembly being detachably connected with the outer wall of the outer cavity. Since each assembly is separately mounted with the outer cavity, the modular design can facilitate the disassembly and maintenance of each assembly, can improve the disassembly convenience of the acceleration zone assembly, and can reduce the maintenance cost of the instrument.

Description

Technical Field

[0001] This invention relates to the field of mass spectrometry, and in particular to a time-of-flight mass analyzer. Background Technology

[0002] The principle of time-of-flight mass spectrometer (TOFMS) is as follows: In a vacuum environment, the molecules of a substance are ionized into molecular ions by the ion source in the ionization chamber. Different ions obtain the same acceleration energy in the acceleration zone. The ions are drawn out from the acceleration zone, enter the field-free flight zone by inertia, fly freely, and are reflected by the reflection zone. The ions will enter the detection zone for separation and detection according to their different mass-to-charge ratios.

[0003] In traditional time-of-flight mass spectrometers (TOF-MS) mass analyzers, high-voltage resistors connected in series between multiple layers of metal electrodes are typically used to divide the electric field, and metal wire mesh is wrapped around the surface of some electrodes to prevent electric field penetration. During routine use, the high-voltage resistors are susceptible to breakdown due to high voltage, and the metal wire mesh is also at risk of being damaged by detached internal parts. When these components fail, the damaged resistors or electrodes need to be removed and replaced. Furthermore, traditional TOF-MS analyzers often have all components vertically fixed within the instrument, making component replacement difficult and time-consuming. Additionally, some instruments operating in special environments often lack on-site maintenance capabilities, further complicating the maintenance process and increasing maintenance costs. Summary of the Invention

[0004] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a time-of-flight quality analyzer that can effectively improve maintenance convenience and reduce instrument maintenance costs.

[0005] The technical solution is as follows: A time-of-flight quality analyzer, comprising: an outer cavity; a fieldless flight zone assembly, the fieldless flight zone assembly being detachably connected to the inner wall of the outer cavity; an acceleration zone assembly, the acceleration zone assembly including an acceleration zone fixing member and an acceleration zone module, the acceleration zone module being detachably connected to the fieldless flight zone assembly through the acceleration zone fixing member; a deflection plate assembly, the deflection plate assembly being disposed in the outer cavity and detachably connected to the fieldless flight zone assembly; a reflection zone assembly, the reflection zone assembly being located inside the outer cavity and detachably connected to the outer cavity; and a detection zone assembly, the detection zone assembly being located inside the outer cavity and detachably connected to the outer cavity.

[0006] In the aforementioned time-of-flight quality analyzer, during installation, the fieldless flight zone component, the reflection zone component, and the detection zone component are detachably connected to the outer cavity. Then, the deflection plate assembly is detachably connected to the fieldless flight zone component, and the acceleration zone module is detachably connected to the fieldless flight zone component via an acceleration zone fixing component. Next, the acceleration zone module is electrically connected to an external power supply, and the deflection plate assembly, the reflection zone component, and the detection zone component are also electrically connected to the external power supply, thus forming the time-of-flight quality analyzer. Because each component is individually installed with the outer cavity, the modular design facilitates the disassembly, assembly, and maintenance of each component, improving the ease of disassembly and assembly of the acceleration zone component, thereby reducing the instrument's maintenance costs.

[0007] In one embodiment, the acceleration zone assembly further includes a first connector electrically connected to the acceleration zone module, the first connector being used for electrically connecting to an external power supply.

[0008] In one embodiment, the time-of-flight quality analyzer further includes a terminal block disposed on the outer cavity, the terminal block being electrically connected to an external power supply, and the first connector being plugged into the terminal block.

[0009] In one embodiment, the fieldless flight zone assembly includes a first fieldless flight zone module, a second fieldless flight zone module, and a flight cavity seat. The first fieldless flight zone module and the second fieldless flight zone module are detachably connected, and both the first fieldless flight zone module and the second fieldless flight zone module are detachably connected to the inner wall of the outer cavity through the flight cavity seat.

[0010] In one embodiment, the first fieldless flight zone includes a first shield and a first base plate, and the second fieldless flight zone includes a second shield and a second base plate, wherein the first base plate and the second base plate are connected by a flange.

[0011] In one embodiment, the deflection plate assembly includes a deflection plate module and a second connector, the second connector being electrically connected to the deflection plate module and electrically plugged into the terminal block, the deflection plate module being disposed inside the first fieldless flight zone module, and the deflection plate module being detachably connected to the first shielding cover.

[0012] In one embodiment, the reflective zone assembly includes a reflective zone mounting base, a third connector, and a reflective zone module. The third connector is electrically connected to the reflective zone module. The reflective zone module is detachably connected to the inner wall of the outer cavity through the reflective zone mounting base. The third connector is plugged into the terminal block.

[0013] In one embodiment, the reflective zone module is provided with a reflective zone base, which is detachably connected to the reflective zone mounting base.

[0014] In one embodiment, the reflective zone base is provided with a mounting hole, and the reflective zone base is threadedly connected to the inner wall of the outer cavity through the mounting hole.

[0015] In one embodiment, the detection area assembly includes a detection area cover, a detection area module, and a fourth connector. The detection area module is detachably connected to the outer wall of the outer cavity through the detection area cover. The fourth connector is electrically connected to the detection area module and electrically plugged into the terminal block.

[0016] In one embodiment, the detection area assembly further includes a detection area mounting base, and the detection area module is detachably connected to the detection area cover plate via the detection area mounting base. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the time-of-flight quality analyzer described in one embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the reflective zone component described in one embodiment;

[0021] Figure 3 A schematic diagram of the acceleration zone component described in one embodiment. Figure 1 ;

[0022] Figure 4 A schematic diagram of the acceleration zone component described in one embodiment. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the deflection plate assembly described in one embodiment;

[0024] Figure 6 This is a schematic diagram of the detection area component described in one embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Time-of-flight quality analyzer; 110. Outer cavity; 120. Field-free flight zone assembly; 121. First field-free flight zone module; 122. Second field-free flight zone module; 130. Acceleration zone assembly; 131. Acceleration zone fixture; 132. First connector; 133. Acceleration zone module; 140. Deflection plate assembly; 141. Deflection plate module; 142. Second connector; 150. Reflection zone assembly; 151. Reflection zone mounting base; 152. Reflection zone module; 153. Third connector; 154. Reflection zone base; 1541. Mounting hole; 160. Detection zone assembly; 161. Detection zone cover; 162. Detection zone module; 163. Fourth connector; 164. Detection zone mounting base; 170. Terminal block. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be 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 the present invention. However, the present invention can be practiced 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 the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of 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. "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.

[0032] It should be noted that when 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. When 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Please see Figures 1 to 6 , Figure 1 A schematic diagram of the structure of the time-of-flight quality analyzer 100 according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the structure of the reflective region according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the acceleration region described in one embodiment of the present invention is shown. Figure 1 ; Figure 4 A schematic diagram of the acceleration zone component described in one embodiment. Figure 2 ; Figure 5 A schematic diagram of the deflection plate according to an embodiment of the present invention is shown; Figure 6A schematic diagram of the detection zone assembly 160 according to an embodiment of the present invention is shown. An embodiment of the present invention provides a time-of-flight quality analyzer 100, including: an outer cavity 110, a field-free flight zone assembly 120, an acceleration zone assembly 130, a deflection plate assembly 140, a reflection zone assembly 150, and a detection zone assembly 160. The field-free flight zone assembly 120 is detachably connected to the inner wall of the outer cavity 110. The acceleration zone assembly 130 includes an acceleration zone fixing member 131 and an acceleration zone module 133. The acceleration zone module 133 is detachably connected to the field-free flight zone assembly 120 via the acceleration zone fixing member 131. The deflection plate assembly 140 is disposed within the outer cavity 110 and is detachably connected to the field-free flight zone assembly 120. The reflection zone assembly 150 is located inside the outer cavity 110 and is detachably connected to the outer cavity 110; the detection zone assembly 160 is located inside the outer cavity 110 and is detachably connected to the outer cavity 110.

[0034] During installation, the aforementioned Time-of-Flight Mass Analyzer 100 involves detachably connecting the fieldless flight zone component 120, the reflection zone component 150, and the detection zone component 160 to the outer cavity 110. Then, the deflection plate component 140 is detachably connected to the fieldless flight zone component 120, and the acceleration zone module 133 is detachably connected to the fieldless flight zone component 120 via the acceleration zone fixing member 131. Next, the acceleration zone module 133 is electrically connected to an external power supply, and the deflection plate component 140, the reflection zone component 150, and the detection zone component 160 are also electrically connected to the external power supply, thus forming the Time-of-Flight Mass Analyzer 100. Because each component is individually installed to the outer cavity 110, the modular design facilitates the disassembly, assembly, and maintenance of each component, improving the ease of disassembly and assembly of the acceleration zone component 130, thereby reducing the instrument's maintenance costs.

[0035] Optionally, the connection between the acceleration zone fixture 131 and the fieldless flight zone assembly 120 can be a bolt connection, threaded connection, plug-in connection, snap-fit ​​connection, adhesive connection, or other detachable connection methods.

[0036] Specifically, please refer to Figure 3 The acceleration zone fixing component 131 has a first fixing hole, and the acceleration zone fixing component 131 is detachably connected to the fieldless flight zone assembly 120 by a non-removable screw. This structure is stable and reliable, which helps improve the connection stability between the acceleration zone fixing component 131 and the fieldless flight zone assembly 120. At the same time, it is easy to assemble and disassemble, suitable for installation in confined spaces, further improving the ease of assembly and disassembly of the acceleration zone fixing component 131 and the fieldless flight zone assembly 120, thereby reducing maintenance difficulty. This embodiment only provides one specific connection method between the acceleration zone fixing component 131 and the fieldless flight zone assembly 120, but it is not limited thereto.

[0037] Further, please refer to Figure 3 The acceleration zone fixture 131 serves as a base, with three first fixing holes spaced apart on the base. This design helps to further improve the connection stability between the acceleration zone fixture 131 and the fieldless flight zone component 120, thereby ensuring the overall quality of the flight time quality analyzer 100.

[0038] The acceleration zone module 133 consists of two parts: a repulsion structure and an acceleration structure. The repulsion structure includes a positive pulse electrode, a GND grid electrode, and a negative pulse grid electrode. The acceleration structure consists of an acceleration zone electrode and an acceleration zone grid. The positive pulse electrode, GND grid electrode, negative pulse grid electrode, acceleration zone electrode, and acceleration zone grid electrode are arranged coaxially in sequence, and adjacent electrode sheets are insulated from each other by placing ceramic pads. All electrode sheets are fixed to the end face of the acceleration zone fixture 131 by four polyetheretherketone (PEEK) supports.

[0039] In use, the Time-of-Flight Mass Analyzer 100 employs a capillary sample introduction system, whose main structure is a quartz capillary. The sample atomic beam is introduced into the ionization region through the quartz capillary. The instrument's ion source is an electron impact ionization source, with the filament of the ion source irradiating the sample atomic beam perpendicularly to ionize the sample.

[0040] Optionally, the electrical connection between the acceleration zone module 133 and the external power supply can be by plugging, clamping, screwing, crimping, welding, or other connection methods.

[0041] In one embodiment, see Figure 2 The acceleration zone component 130 also includes a first connector 132. The first connector 132 is electrically connected to the acceleration zone module 133 and is used for electrical connection with an external power supply. This electrical connection method is simple, efficient, and convenient for disassembly and assembly, facilitating the overall disassembly of the acceleration zone component 130 and improving maintenance efficiency.

[0042] In one embodiment, see Figure 4 and Figure 5 The time-of-flight quality analyzer 100 also includes a terminal block 170, which is disposed on the outer cavity 110. The terminal block 170 is used for electrical connection to an external power supply, and the first connector 132 is plugged into the terminal block 170. Furthermore, the terminal block 170 has two or more pins. In this way, the terminal block 170 can lead out multiple interfaces from the external power supply, thereby powering multiple components within the outer cavity 110, improving the convenience of power connection.

[0043] Specifically, please refer to Figure 4The first connector 132 is connected to the terminal block 170 via a quick-release pin. This connection is convenient, and when the acceleration zone component 130 needs to be repaired or replaced, power can be cut off simply by unplugging the quick-release pin, thereby improving maintenance efficiency.

[0044] In one embodiment, see Figure 1 The fieldless flight zone assembly 120 includes a first fieldless flight zone module 121, a second fieldless flight zone module 122, and a flight cavity mount. The first fieldless flight zone module 121 and the second fieldless flight zone module 122 are detachably connected, and both are detachably connected to the inner wall of the outer cavity 110 via the flight cavity mount. This ensures the operational reliability of the time-of-flight mass analyzer 100 while facilitating the disassembly and maintenance of the fieldless flight zone assembly 120, thus reducing maintenance costs.

[0045] Specifically, please refer to Figure 1 The first fieldless flight zone module 121 includes a first shield and a first base plate, and the second fieldless flight zone module 122 includes a second shield and a second base plate. The first base plate and the second base plate are connected by a flange. This design ensures sample flight while facilitating the disassembly and maintenance of the fieldless flight zone assembly 120, reducing maintenance costs. The flange connection provides structural stability, which helps improve the overall structural stability and overall quality of the fieldless flight zone assembly 120.

[0046] Further, please refer to Figure 1 Both the first and second shielding covers are metal shielding covers. The second fieldless flight zone module 122 also includes a flight cavity shielding plate, and the second shielding cover is connected to the flight cavity shielding plate. This helps to improve the shielding effect of the second fieldless flight zone module 122 and improve the reliability of the flight time quality analyzer 100.

[0047] In one embodiment, see Figure 4 The deflector assembly 140 includes a deflector module 141 and a second connector 142. The second connector 142 is electrically connected to the deflector module 141 and electrically plugged into a terminal block 170. The deflector module 141 is disposed inside the first fieldless flight zone module 121, and the deflector module 141 is detachably connected to the first shielding cover. Thus, the modular deflector assembly 140 with the deflector module 141 can be easily removed from the fieldless flight zone assembly 120. Furthermore, the plugging method of the second connector 142 into the terminal block 170 is simple and efficient, further improving the ease of assembly and disassembly of the deflector assembly 140 and reducing maintenance difficulty and costs.

[0048] Specifically, please refer to Figure 4The second connector 142 is connected to the terminal block 170 via a quick-release pin. This connection is convenient, and when the deflection plate assembly 140 needs to be repaired or replaced, the power can be cut off simply by unplugging the quick-release pin, thereby improving maintenance efficiency.

[0049] In one embodiment, see Figure 2 The reflector assembly 150 includes a reflector mounting base 151, a third connector 153, and a reflector module 152. The third connector 153 is electrically connected to the reflector module 152. The reflector module 152 is detachably connected to the inner wall of the outer cavity 110 via the reflector mounting base 151. The third connector 153 is plugged into a terminal block 170. Thus, by removing the reflector mounting base 151 and unplugging the third connector 153, the reflector module 152 can be completely removed. For faulty reflector assemblies 150, this method of first disassembling and then replacing parts externally improves the ease of installation and disassembly of the reflector assembly 150, reduces the difficulty of maintenance, and saves maintenance time.

[0050] Specifically, please refer to Figure 4 The third connector 153 is connected to the terminal block 170 via a quick-release pin. This connection is convenient, and when the reflector assembly 150 needs to be repaired or replaced, the power can be cut off simply by unplugging the quick-release pin, thereby improving maintenance efficiency.

[0051] In one embodiment, see Figure 2 The reflective zone module 152 is provided with a reflective zone base 154, which is detachably connected to the reflective zone mounting base 151. This facilitates the assembly and disassembly of the reflective zone module 152 and the reflective zone mounting base 151, thereby improving the efficiency of module replacement.

[0052] Further, please refer to Figure 2 The reflective zone module 152 is located below the second field-free flight zone assembly 120 and consists of several reflective zone electrodes and two reflective zone grid electrodes. The reflective zone electrodes and grid electrodes are square thin sheets made of stainless steel with a square through-hole in the center. The front of the grid electrodes is wrapped with a metal wire mesh. The centers of the reflective zone electrodes and grid electrodes are arranged coaxially with the center of the field-free zone, and adjacent electrodes are insulated from each other by ceramic pads. All electrodes are fixed to the end face of the reflective zone base 154 by four polyetheretherketone (PEEK) supports.

[0053] In one embodiment, see Figure 2The reflector base 154 is provided with mounting holes 1541, through which it is threadedly connected to the inner wall of the outer cavity 110. Specifically, the reflector base 154 has four openings circumferentially, which are fixed to the reflector mounting base 151 by screws. The reflector module 152 is fixed to the inner wall of the outer cavity 110 by non-removable screws. This improves the connection stability between the reflector module 152 and the outer cavity 110, and enhances the overall quality of the time-of-flight mass analyzer 100.

[0054] In one embodiment, see Figure 5 The detection area assembly 160 includes a detection area cover 161, a detection area module 162, and a fourth connector 163. The detection area module 162 is detachably connected to the outer wall of the outer cavity 110 via the detection area cover 161. The fourth connector 163 is electrically connected to the detection area module 162 and electrically plugged into the terminal block 170. Thus, when it is necessary to repair or replace the components within the detection area module 162, only the detection area cover 161 needs to be removed from the outer wall of the outer cavity 110, allowing for the replacement of the new detection area module 162. Compared to traditional soldering methods, the plugging method of the fourth connector 163 facilitates the switching of power and signal lines, thereby improving component replacement efficiency and instrument maintenance efficiency.

[0055] Further, please refer to Figure 5 The detection area assembly 160 also includes a detection area mounting base 164, through which the detection area module 162 is detachably connected to the detection area cover plate 161. This facilitates the installation of the detection area module 162 on the detection area cover plate 161, improves installation efficiency, and thus enhances the overall quality and operational reliability of the detection area assembly 160.

[0056] Optionally, the connection between the testing area mounting base 164 and the testing area cover plate 161 can be a bolt connection, threaded connection, snap-fit, adhesive connection, plug-in connection, pin connection, riveting connection or other connection methods.

[0057] Specifically, please refer to Figure 5 The mounting base 164 for the testing area and the cover plate 161 for the testing area are connected by three bolts. However, this is not a limitation.

[0058] 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.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A time-of-flight quality analyzer, characterized in that, The time-of-flight quality analyzer includes: external cavity; A fieldless flight zone assembly, wherein the fieldless flight zone assembly is detachably connected to the inner wall of the outer cavity; An acceleration zone assembly, comprising an acceleration zone fixture and an acceleration zone module, wherein the acceleration zone module is detachably connected to the fieldless flight zone assembly via the acceleration zone fixture. A deflector plate assembly is disposed within the outer cavity and is detachably connected to the fieldless flight zone assembly. A reflective zone assembly, wherein the reflective zone assembly is located inside the outer cavity and is detachably connected to the outer cavity; A detection area assembly, wherein the detection area assembly is located inside the outer cavity and is detachably connected to the outer cavity; The acceleration zone component further includes a first connector, which is electrically connected to the acceleration zone module; The time-of-flight quality analyzer also includes a connector, which is disposed on the outer cavity and is used for electrical connection with an external power supply. The first connector is plugged into the connector, and the connector has multiple interfaces.

2. The time-of-flight quality analyzer according to claim 1, characterized in that, The acceleration zone fixture is provided with a first fixing hole, and the acceleration zone fixture is detachably connected to the fieldless flight zone assembly by a non-removable screw.

3. The time-of-flight quality analyzer according to claim 1, characterized in that, The first connector is plugged into the terminal block via a quick-release pin.

4. The time-of-flight quality analyzer according to claim 1, characterized in that, The fieldless flight zone assembly includes a first fieldless flight zone module, a second fieldless flight zone module, and a flight cavity seat. The first fieldless flight zone module and the second fieldless flight zone module are detachably connected, and both the first fieldless flight zone module and the second fieldless flight zone module are detachably connected to the inner wall of the outer cavity through the flight cavity seat.

5. The time-of-flight quality analyzer according to claim 4, characterized in that, The first fieldless flight zone module includes a first shield and a first base plate, and the second fieldless flight zone module includes a second shield and a second base plate. The first base plate and the second base plate are connected by a flange.

6. The time-of-flight quality analyzer according to claim 5, characterized in that, The deflection plate assembly includes a deflection plate module and a second connector. The second connector is electrically connected to the deflection plate module and electrically plugged into the terminal block. The deflection plate module is disposed inside the first fieldless flight zone module, and the deflection plate module is detachably connected to the first shielding cover.

7. The time-of-flight quality analyzer according to claim 1, characterized in that, The reflective zone assembly includes a reflective zone mounting base, a third connector, and a reflective zone module. The third connector is electrically connected to the reflective zone module. The reflective zone module is detachably connected to the inner wall of the outer cavity through the reflective zone mounting base. The third connector is plugged into the terminal block.

8. The time-of-flight quality analyzer according to claim 7, characterized in that, The reflective zone module is provided with a reflective zone base, and the reflective zone base is detachably connected to the reflective zone mounting base.

9. The time-of-flight quality analyzer according to claim 8, characterized in that, The reflective zone base is provided with mounting holes, and the reflective zone base is threadedly connected to the inner wall of the outer cavity through the mounting holes.

10. The time-of-flight quality analyzer according to any one of claims 2-9, characterized in that, The detection area assembly includes a detection area cover, a detection area module, and a fourth connector. The detection area module is detachably connected to the outer wall of the outer cavity through the detection area cover. The fourth connector is electrically connected to the detection area module and electrically plugged into the terminal block.

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