Areal density measurement system

Abstract

This application relates to an areal density measurement system. The areal density measurement system includes a frame, a line detection component, a single-point detection component, a calibration component, and a controller. The line detection component is arranged along a first direction, the single-point detection component is movable along the first direction, and the calibration component is located on one side of the line detection component. The controller is communicatively connected to the line detection component, the single-point detection component, and the calibration component. The line detection component is used to perform multi-point detection on the electrode during the electrode's tape movement to obtain line detection data. The single-point detection component is used to perform single-point detection on the electrode during the electrode's tape movement to obtain single-point detection data, and to detect a calibration plate installed in the calibration component to obtain calibration data. The controller is used to determine the areal density data of the electrode based on the line detection data, the single-point detection data, and the calibration data. Using this application enables real-time verification of the detection data, improves measurement accuracy, and increases the space utilization of the equipment.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, specifically to an areal density measurement system. Background Technology

[0002] With the development of new energy technologies, batteries are being used in a wider range of fields, such as new energy vehicles, intelligent robots, and drones powered by batteries, as well as energy storage systems built with batteries.

[0003] Electrodes are a crucial component of battery structure. During battery production, it is often necessary to measure the areal density of the electrodes to determine the coating effect. However, current areal density measurement systems lack the required accuracy. Utility Model Content

[0004] To address the aforementioned issues, this application provides a surface density measurement system that enables real-time verification of detection data, improves measurement accuracy, and enhances the space utilization of the equipment.

[0005] In a first aspect, this application provides an areal density measurement system, which includes a frame, a line detection component, a single-point detection component, a calibration component, and a controller;

[0006] The line detection component is set along the first direction, the single-point detection component can move along the first direction, and the calibration component is set on one side of the line detection component; the controller is communicatively connected to the line detection component, the single-point detection component and the calibration component respectively;

[0007] The line detection component is used to perform multi-point detection on the electrode during the electrode running process to obtain line detection data;

[0008] The single-point detection component is used to perform single-point detection on the electrode during the electrode tape-carrying process to obtain single-point detection data, and to detect the calibration plate installed in the calibration component to obtain calibration data;

[0009] The controller is used to determine the areal density data of the electrode based on line detection data, single-point detection data, and calibration data.

[0010] In the technical solution of this application embodiment, single-point detection components and line detection components are used to obtain single-point detection data, calibration data, and line detection data. The calibration data is used to correct the single-point detection data in real time, and then the corrected single-point detection data is used to correct the line detection data in real time. Accurate areal density data can be obtained based on the corrected line detection data. It is evident that this application embodiment integrates single-point detection and line detection methods, which not only achieves real-time verification of detection data and improves measurement accuracy, but also eliminates the need for machine downtime and line detector movement during the verification process, thereby improving the space utilization of the equipment. Furthermore, the line detection method can perform full-coverage sampling in the width direction of the electrode, thereby increasing the sampling rate, reducing the probability of missed detections, and ultimately improving the quality of the electrode and the battery.

[0011] In some embodiments, the line detection assembly includes a line source and an array detector; both the line source and the array detector are arranged along a first direction, and the line source and the array detector are spaced apart by a first preset distance for the electrode to travel; the controller is communicatively connected to the line source and the array detector respectively;

[0012] A beam source, used to emit probe rays toward the electrode under the control of a controller;

[0013] An array detector is used to generate line detection data based on the detection rays passing through the electrodes and transmit the line detection data to the controller.

[0014] In the technical solution of this application embodiment, a linear radiation source is used to emit detection rays, and an array detector is used to receive the detection rays passing through the electrode sheet. This allows for full-coverage sampling of the electrode sheet, improving the sampling rate and the detection area of ​​the electrode sheet, and reducing the probability of missed detection.

[0015] In some embodiments, the line ray source includes a plurality of point ray sources arranged along a first direction;

[0016] An array detector consists of multiple radiation detectors arranged in an array.

[0017] In the technical solution of this application embodiment, a certain number of point radiation sources and radiation detectors are used to form a multi-point detection covering the width of the electrode, which increases the amount of sampling data and reduces the probability of missed detection.

[0018] In some embodiments, the single-point detection assembly includes a single-point radiation source, a single-point detector, a radiation source slide rail, and a detector slide rail;

[0019] The radioactive source slide rail and the detector slide rail are arranged along the first direction;

[0020] The single-point radiation source can move along the radiation source slide rail, and the detector slide rail can move along the detector slide rail. The single-point radiation source and the single-point detector are spaced by a second preset distance to allow the electrode to travel.

[0021] A single-point radiation source, used to move under the control of a controller and emit probe rays toward an electrode or calibration plate;

[0022] A single-point detector is used to generate single-point detection data based on the detection rays passing through the electrode, generate calibration data based on the detection rays passing through the calibration plate, and transmit the single-point detection data and calibration data to the controller.

[0023] In the technical solution of this application embodiment, the single-point radiation source and the single-point detector work together to realize the single-point detection of the electrode sheet and the detection of the calibration sheet, which provides support for real-time verification using calibration data. This not only improves the accuracy of the areal density data, but also eliminates the need to stop the machine or move the line detection components, thus improving the space utilization of the equipment.

[0024] In some embodiments, the single-point detector includes a radiation detector and a signal processor; the signal processor is connected to the radiation detector and the controller, respectively.

[0025] A radiation detector is used to generate an electrode detection signal based on the probe rays passing through the electrode, and to generate a calibration detection signal based on the probe rays passing through the calibration assembly.

[0026] The signal processor is used to generate single-point detection data based on the electrode detection signal, generate calibration data based on the calibration detection signal, and transmit the single-point detection data and calibration data to the controller.

[0027] In the technical solution of this application embodiment, the signal processor is used to process the electrode detection signal and the calibration detection signal, which can reduce the influence of interference signals, improve the accuracy of the detection signal, thereby improving the accuracy of single-point detection data and calibration data, and further improving the accuracy of areal density data.

[0028] In some embodiments, the calibration assembly includes a calibration tray, a rotary tray, a plurality of calibration plate chucks, and a drive component;

[0029] The calibration tray is fixedly connected to the frame;

[0030] The rotating tray is set on the calibration tray, and the rotating tray has multiple mounting holes along its circumference;

[0031] The calibration chuck is connected to the rotating tray through mounting holes, and the calibration chuck can be detached to install calibration pieces;

[0032] The drive unit is connected to the rotating tray via a transmission, and the drive unit is also connected to the controller via a communication connection; the drive unit is used to drive the rotating tray to rotate under the control of the controller.

[0033] In the technical solution of this application embodiment, the calibration component can be disassembled and installed with multiple calibration plates, and the driving component can drive the rotating tray to rotate different calibration plates into the detection area of ​​the single-point detection component. In this way, the efficiency of changing calibration plates can be improved, and it is applicable to different detection scenarios.

[0034] In some embodiments, the calibration component further includes a positioner; the positioner is disposed on the calibration tray and the positioning part of the positioner faces the rotating tray; the positioner is communicatively connected to the controller;

[0035] A positioner is used to position the rotation angle of a rotating tray under the control of a controller.

[0036] In the technical solution of this application embodiment, the locator can be used to accurately position the rotation angle of the rotating tray, thereby rotating the appropriate calibration plate into the detection area of ​​the single-point detection component, and performing more accurate verification of the single-point detection data.

[0037] In some embodiments, the calibration component further includes a dust cover; the dust cover covers the rotating tray and has through holes.

[0038] In the technical solution of this application embodiment, the dust cover can cover the rotating tray outside the through hole, which protects the calibration sheet on the rotating tray, reduces the adsorption of dust on the calibration sheet, and can also reduce the influence of environmental factors (air pressure, temperature, etc.) on the calibration sheet, thereby improving the accuracy and reliability of the areal density data.

[0039] In some embodiments, the frame includes a base, two side walls, and a top cover. The two side walls are respectively mounted on both ends of the base, and the top cover is mounted on one end of the two side walls away from the base.

[0040] The two ends of the line detection assembly are fixedly connected to the two side walls respectively;

[0041] The two ends of the single-point detection component are fixedly connected to the two side walls respectively;

[0042] The calibration component is fixedly mounted to one side wall.

[0043] In the technical solution of this application embodiment, the line detection component, the single-point detection component, and the calibration component are fixed by the base, the side wall, and the top cover, thereby stabilizing the entire areal density measurement system.

[0044] In some embodiments, the areal density measurement system further includes an output component; the output component is communicatively connected to the controller;

[0045] Output component, used to output the areal density data of the electrode.

[0046] In the technical solution of this application embodiment, the output component can intuitively display or broadcast the areal density data, so that production line personnel can obtain the data in a timely manner and perform corresponding processing. Attached Figure Description

[0047] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the alternative embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0048] Figure 1 This is one of the structural schematic diagrams of an embodiment of the areal density measurement system of this application;

[0049] Figure 2 This is a top view of an embodiment of the areal density measurement system of this application;

[0050] Figure 3 This is a schematic diagram of data distribution according to an embodiment of this application;

[0051] Figure 4 This is a second schematic diagram of the structure of an embodiment of the areal density measurement system of this application;

[0052] Figure 5 This is the third schematic diagram of the structure of an embodiment of the areal density measurement system of this application;

[0053] Figure 6 This is a schematic diagram of the structure of a single-point detection component according to an embodiment of this application;

[0054] Figure 7 This is one of the structural schematic diagrams of a calibration component according to an embodiment of this application;

[0055] Figure 8 This is a second schematic diagram of the structure of a calibration component according to an embodiment of this application;

[0056] Figure 9 This is the fourth schematic diagram of the structure of an embodiment of the areal density measurement system of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. Frame; 2. Line detection assembly; 3. Single-point detection assembly; 4. Calibration assembly; 5. Electrode;

[0059] 21. Linear radiation source; 22. Array detector; 31. Single-point radiation source; 32. Single-point detector;

[0060] 33. Radioactive source slide rail; 34. Detector slide rail; 321. Radiation detector;

[0061] 322. Signal processor; 41. Calibration tray; 42. Rotary tray; 43. Calibration plate chuck;

[0062] 44. Drive components; 45. Positioner; 46. Dust cover. Detailed Implementation

[0063] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0065] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0066] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0067] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0068] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0069] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0070] With the development of new energy technologies, batteries are being used in a wider range of fields, such as new energy vehicles, intelligent robots, and drones powered by batteries, as well as energy storage systems built with batteries.

[0071] Electrodes are a crucial component of battery layout. During battery production, it's often necessary to measure the areal density of the electrodes to determine their coating effectiveness. However, current areal density measurement systems primarily use a single-cell X / β spot beam emitter and detector to scan back and forth across the electrode's width. Since the electrode travels longitudinally, this periodic back-and-forth spot scanning results in a low sampling rate and potential for missed detections. Another areal density measurement system uses a linear beam beam and array detector to achieve 100% sampling across the entire electrode width. However, array-type X / β beam emitters and detectors are typically fixed on an "O"-type or "C"-type scanning frame. Using an "O"-type frame prevents real-time automatic calibration, while using a "C"-type frame requires periodic back-and-forth sampling of air and calibration plates, leading to low equipment space utilization. Furthermore, neither of these systems can achieve real-time calibration, resulting in poor measurement accuracy.

[0072] To address the aforementioned problems, this application provides an areal density measurement system. This system includes a frame, a line detection component, a single-point detection component, a calibration component, and a controller. During electrode tape movement, the line detection component performs multi-point detection on the electrode to obtain line detection data. The single-point detection component performs single-point detection on the electrode during tape movement to obtain single-point detection data, and also detects a calibration plate installed within the calibration component to obtain calibration data. The controller determines the areal density data of the electrode based on the line detection data, single-point detection data, and calibration data. In this application's technical solution, single-point detection components and line detection components are used to obtain single-point detection data, calibration data, and line detection data. The calibration data is used to correct the single-point detection data in real time, and the corrected single-point detection data is then used to correct the line detection data in real time. Accurate areal density data can be obtained based on the corrected line detection data. As can be seen, the embodiments of this application integrate single-point detection and line detection methods, which not only realizes real-time verification of detection data and improves measurement accuracy, but also eliminates the need for machine shutdown and line detector movement during the verification process, thereby improving the space utilization of the equipment. Furthermore, the line detection method can perform full-coverage sampling in the width direction of the electrode, thereby improving the sampling rate, reducing the probability of missed detection, and thus improving the quality of the electrode and the battery.

[0073] According to some embodiments of this application, refer to Figure 1 A surface density measurement system is provided, comprising a frame 1, a line detection component 2, a single-point detection component 3, a calibration component 4, and a controller. The line detection component 2 is arranged along a first direction, the single-point detection component 3 is movable along the first direction, and the calibration component 4 is disposed on one side of the line detection component 2. The controller is communicatively connected to the line detection component 2, the single-point detection component 3, and the calibration component 4. The line detection component 2 is used to perform multi-point detection on the electrode during the electrode tape movement to obtain line detection data. The single-point detection component 3 is used to perform single-point detection on the electrode during the electrode tape movement to obtain single-point detection data, and to detect the calibration plate installed in the calibration component 4 to obtain calibration data. The controller is used to determine the surface density data of the electrode based on the line detection data, the single-point detection data, and the calibration data. It should be noted that the controller and its connections are not shown in the figure.

[0074] In this embodiment, the areal density measurement system includes a frame 1, a line detection component 2, a single-point detection component 3, a calibration component 4, and a controller. (Refer to...) Figure 2 The line detection component 2 is line-segment shaped, and the top cover of the frame 1 is rectangular. In some embodiments, the first direction is parallel to the long side of the top cover of the frame 1, so the line detection component 2 is arranged parallel to the long side of the top cover of the frame 1. The single-point detection component 3 can move along the direction parallel to the long side of the top cover of the frame 1. The calibration component 4 is disposed on one side of the line detection component 2.

[0075] The controller is communicatively connected to the line detection component 2, the single-point detection component 3, and the calibration component 4. The controller can control the line detection component 2, the single-point detection component 3, and the calibration component 4, and can also acquire detection data from the line detection component 2 and the single-point detection component 3.

[0076] During the electrode travel process, the line detection component 2 emits multiple detection rays towards the electrode, which can cover the width direction of the electrode; the line detection component 2 generates line detection data based on the detection rays passing through the electrode and transmits the line detection data to the controller.

[0077] During the electrode conveying process, the single-point detection component 3 moves back and forth along the long side of the top cover of the parallel frame 1. During this movement, it emits a detection beam towards the electrode, generating single-point detection data based on the beam passing through it. During this movement, the single-point detection component 3 can move to the position of the calibration component 4. The calibration component 4 is equipped with a calibration plate. After the single-point detection component 3 moves to the position of the calibration component 4, it emits a detection beam towards the calibration plate, generating calibration data based on the beam passing through it. The single-point detection component 3 then transmits the single-point detection data and calibration data to the controller.

[0078] Reference Figure 3 As the electrode travels, the line detection component 2 can achieve full coverage detection in the width direction of the electrode, and the single-point detection component 3 can achieve Z-shaped detection on the electrode.

[0079] After receiving line detection data, single-point detection data, and calibration data, the controller can first use the calibration data to correct the single-point detection data to obtain corrected single-point detection data; then, based on the sampling time of the detection data, it can perform position matching between the corrected single-point detection data and the line detection data; finally, it can use the corrected single-point detection data to correct the line detection data corresponding to the position to obtain corrected line detection data.

[0080] Alternatively, after receiving line detection data, single-point detection data, and calibration data, the controller first matches the single-point detection data with the line detection data based on the sampling time of the detection data; then, it corrects the single-point detection data using the calibration data to obtain corrected single-point detection data; and finally, it corrects the line detection data corresponding to the position using the corrected single-point detection data to obtain corrected line detection data.

[0081] In some embodiments, correcting the line detection data corresponding to a location using the corrected single-point detection data to obtain corrected line detection data may include: calculating the difference between the corrected single-point detection data and the line detection data corresponding to the location; if the difference is less than a preset threshold, then the line detection data is not corrected, that is, the areal density data is directly calculated using the line detection data; if the difference is greater than the preset threshold, then the sum of the difference and the line detection data is used as the corrected line detection data, and then the areal density data is calculated using the corrected line detection data.

[0082] It should be noted that the methods for correcting line detection data are not limited to the examples above. In practical applications, other methods can also be used.

[0083] In some embodiments, during the location matching process of single-point probe data and line probe data, the locations of the single-point probe data and the line probe data may not correspond perfectly. In this case, multiple single-point probe data can be interpolated based on the location of the line probe data to obtain interpolated single-point probe data that corresponds to the location of the line probe data.

[0084] The controller pre-establishes a mapping relationship between the detection data and the areal density data. After obtaining the corrected line detection data, the corrected line detection data is substituted into the above mapping relationship to calculate the areal density data of the electrode.

[0085] In the above embodiments, the areal density measurement system includes a frame, a line detection component, a single-point detection component, a calibration component, and a controller. During electrode tape movement, the line detection component performs multi-point detection on the electrode to obtain line detection data. The single-point detection component performs single-point detection on the electrode during tape movement to obtain single-point detection data, and also detects a calibration plate installed in the calibration component to obtain calibration data. The controller determines the areal density data of the electrode based on the line detection data, single-point detection data, and calibration data. In the technical solution of this application embodiment, single-point detection components and line detection components are used to obtain single-point detection data, calibration data, and line detection data. The calibration data is used to correct the single-point detection data in real time, and then the corrected single-point detection data is used to correct the line detection data in real time. Accurate areal density data can be obtained based on the corrected line detection data. As can be seen, the embodiments of this application integrate single-point detection and line detection methods, which not only realizes real-time verification of detection data and improves measurement accuracy, but also eliminates the need for machine shutdown and line detector movement during the verification process, thereby improving the space utilization of the equipment. Furthermore, the line detection method can perform full-coverage sampling in the width direction of the electrode, thereby improving the sampling rate, reducing the probability of missed detection, and thus improving the quality of the electrode and the battery.

[0086] According to some embodiments of this application, refer to Figure 4The line detection component 2 includes a line beam source 21 and an array detector 22. Both the line beam source 21 and the array detector 22 are arranged along a first direction, and are spaced apart by a first preset distance for the electrode sheet to pass through. A controller is communicatively connected to both the line beam source 21 and the array detector 22. The line beam source 21 is used to emit detection beams towards the electrode sheet under the control of the controller. The array detector 22 is used to generate line detection data based on the detection beams passing through the electrode sheet and transmit the line detection data to the controller. It should be noted that the controller and its connections are not shown in the figure.

[0087] In this embodiment, the line detection component 2 includes a line source 21 and an array detector 22. In some embodiments, the first direction is parallel to the long side of the top cover of the frame 1, so both the line source 21 and the array detector 22 are arranged parallel to the long side of the top cover of the frame 1. The line source 21 and the array detector 22 are spaced by a first preset distance d1, and the electrode can pass through the gap between the line source 21 and the array detector 22 for conveying.

[0088] The controller is communicatively connected to the line beam source 21 and the array detector 22 respectively; the controller can control the line beam source 21 to emit detection beams and can acquire line detection data from the array detector 22.

[0089] During the actual detection process, the electrode passes through the gap between the linear beam source 21 and the array detector 22 and carries a probe beam. The linear beam source 21 emits probe beams towards the electrode, and the probe beams can cover the width of the electrode. After passing through the electrode, the probe beams are received by the array detector 22, which generates linear detection data based on the received probe beams.

[0090] As the electrode travels along the tape, the linear radiation source 21 and the array detector 22 work together to perform full-coverage sampling of the electrode.

[0091] In the above embodiments, the line detection component includes a line beam source and an array detector; the line beam source emits detection beams towards the electrode under the control of the controller; the array detector generates line detection data based on the detection beams passing through the electrode and transmits the line detection data to the controller. In the technical solution of this application embodiment, by using a line beam source to emit detection beams and using an array detector to receive the detection beams passing through the electrode, full-coverage sampling of the electrode can be performed, improving the sampling rate and the detection area of ​​the electrode, and reducing the probability of missed detections.

[0092] According to some embodiments of this application, the linear radiation source 21 includes a plurality of point radiation sources arranged along a first direction; the array detector 22 includes a plurality of radiation detectors arranged in an array.

[0093] In this embodiment, the linear X-ray source 21 includes multiple point X-ray sources. In some embodiments, the first direction is parallel to the long side of the top cover of the frame 1, and the multiple point X-ray sources are arranged along the long side of the top cover of the frame 1. The multiple point X-ray sources emit detection rays, enabling multi-point detection along the width of the electrode sheet. (Refer to...) Figure 3 .

[0094] The array detector 22 comprises multiple radiation detectors arranged in an array. In practical applications, to improve detection accuracy, the number of radiation detectors exceeds the number of point radiation sources along the long side of the top cover of the rack 1, and the number of radiation detectors exceeds the number of point radiation sources along the wide side of the top cover of the rack 1. For example, the line radiation source 21 comprises one row of 18 point radiation sources, and the array detector 22 comprises two rows of radiation detectors, with 20 radiation detectors in each row.

[0095] It should be noted that the number of point beam sources and radiation detectors is not limited in the embodiments of this application, and can be set according to the actual width of the electrode, the spot size of the point beam source, and the detection area of ​​the radiation detector.

[0096] In the above embodiments, the linear radiation source includes multiple point radiation sources arranged along a first direction; the array detector includes multiple radiation detectors arranged in an array. In the technical solution of this application embodiment, by using a certain number of point radiation sources and radiation detectors, multi-point detection covering the width of the electrode is formed, increasing the amount of sampled data and reducing the probability of missed detections.

[0097] According to some embodiments of this application, refer to Figure 5 The single-point detection component 3 includes a single-point radiation source 31, a single-point detector 32, a radiation source slide rail 33, and a detector slide rail 34. The radiation source slide rail 33 and the detector slide rail 34 are arranged along a first direction. The single-point radiation source 31 can move along the radiation source slide rail 33, and the detector slide rail 34 can move along the detector slide rail 34. A second preset distance is spaced between the single-point radiation source 31 and the single-point detector 32 to allow the electrode to travel. The single-point radiation source 31 is used to move under the control of the controller and emit detection rays towards the electrode or calibration plate. The single-point detector 32 is used to generate single-point detection data based on the detection rays passing through the electrode, generate calibration data based on the detection rays passing through the calibration plate, and transmit the single-point detection data and calibration data to the controller. It should be noted that the controller and its connection relationship are not shown in the figure.

[0098] In this embodiment, the single-point detection component 3 includes a single-point radiation source 31, a single-point detector 32, a radiation source slide rail 33, and a detector slide rail 34. In some embodiments, the first direction is parallel to the long side of the top cover of the frame 1, and the radiation source slide rail 33 and the detector slide rail 34 are arranged parallel to the long side of the top cover of the frame 1. In one implementation, the single-point radiation source 31 is disposed on the radiation source slide rail 33, and the single-point detector 32 is disposed on the detector slide rail 34. In another implementation, the single-point radiation source 31 is disposed on the radiation source slide rail 33, and the single-point detector 32 is suspended on the detector slide rail 34, that is, the radiation source slide rail 33 and the detector slide rail 34 are located on the upper and lower sides, and the single-point radiation source 31 and the single-point detector 32 are located between the radiation source slide rail 33 and the detector slide rail 34.

[0099] A second preset distance is spaced between the single-point radiation source 31 and the single-point detector 32, and the electrode passes through the gap between the single-point radiation source 31 and the single-point detector 32 and is carried out.

[0100] The controller is communicatively connected to the single-point radiation source 31 and the single-point detector 32, and can control the single-point radiation source 31 to move back and forth on the radiation source slide rail 33, and synchronously control the single-point detector 32 to move back and forth on the detector slide rail 34; wherein the positions of the single-point radiation source 31 and the single-point detector 32 always correspond.

[0101] During the movement of the single-point radiation source 31 and the single-point detector 32, the controller also controls the single-point radiation source 31 to emit detection rays. The detection rays pass through the pole piece and are received by the single-point detector 32, which can generate single-point detection data.

[0102] After the single-point detection component 3 moves to the position of the calibration component 4, the detection rays emitted by the single-point radiation source 31 pass through the calibration plate and are received by the single-point detector 32, which can generate calibration data.

[0103] The single-point detector 32 transmits single-point detection data and calibration data to the controller in real time.

[0104] In the above embodiments, the single-point detection component includes a single-point radiation source, a single-point detector, a radiation source slide rail, and a detector slide rail. The single-point radiation source moves under the control of the controller and emits detection rays towards the electrode or calibration plate. The single-point detector generates single-point detection data based on the detection rays passing through the electrode and generates calibration data based on the detection rays passing through the calibration plate, and transmits the single-point detection data and calibration data to the controller. In the technical solution of this application embodiment, the single-point radiation source and the single-point detector cooperate to realize single-point detection of the electrode and detection of the calibration plate, providing support for real-time verification using calibration data. This not only improves the accuracy of areal density data but also eliminates the need for machine downtime and movement of the line detection component, thus improving the space utilization of the equipment.

[0105] According to some embodiments of this application, refer to Figure 6 The single-point detector 32 includes a radiation detector 321 and a signal processor 322. The signal processor 322 is connected to both the radiation detector 321 and the controller. The radiation detector 321 generates an electrode detection signal based on the detection rays passing through the electrode 5 and a calibration detection signal based on the detection rays passing through the calibration assembly 4. The signal processor 322 generates single-point detection data based on the electrode detection signal and calibration data based on the calibration detection signal, and transmits the single-point detection data and calibration data to the controller. It should be noted that the controller and its connections are not shown in the figure.

[0106] In this embodiment, the single-point detector 32 includes a radiation detector 321 and a signal processor 322; the radiation detector 321 is disposed opposite to the single-point radiation source 31, and a second preset distance d2 is spaced between the radiation detector 321 and the single-point radiation source 31. The electrode 5 can pass through the gap between the radiation detector 321 and the single-point radiation source 31 and carry a belt.

[0107] The signal processor 322 is connected to both the radiation detector 321 and the controller. During detection, the single-point radiation source 31 emits detection rays towards the electrode 5. The detection rays pass through the electrode 5 and are received by the radiation detector 321. The radiation detector 321 performs a photoelectric reaction to generate an electrode detection signal and transmits the electrode detection signal to the signal processor 322. The signal processor 322 can perform filtering, amplification, and other processing on the electrode detection signal, and generate single-point detection data based on the processed electrode detection signal, as well as transmit the single-point detection data to the controller.

[0108] When the single-point radiation source 31 and the single-point detector 32 move to the position of the calibration component 4, the single-point radiation source 31 emits a probe beam towards the calibration plate. The probe beam passes through the calibration plate and is received by the radiation detector 321. The radiation detector 321 performs a photoelectric reaction to generate a calibration detection signal and transmits the calibration detection signal to the signal processor 322. The signal processor 322 can perform filtering, amplification, and other processing on the calibration detection signal, and generate calibration data based on the processed calibration detection signal, as well as transmit the calibration data to the controller.

[0109] In some embodiments, the electrode detection signal and calibration detection signal mentioned above can be voltage signals or current signals, and this application embodiment does not limit them.

[0110] In some embodiments, the single-point detection component 3 further includes a pre-calibrator, which can normalize the single-point detection data and calibration data according to pre-set standard data to obtain normalized single-point detection data and calibration data.

[0111] In the above embodiments, the single-point detector includes a radiation detector and a signal processor. The radiation detector generates an electrode detection signal based on the detection rays passing through the electrode and a calibration detection signal based on the detection rays passing through the calibration assembly. The signal processor generates single-point detection data based on the electrode detection signal and calibration data based on the calibration detection signal, and transmits the single-point detection data and calibration data to the controller. In the technical solution of this application embodiment, using a signal processor to process the electrode detection signal and calibration detection signal can reduce the influence of interference signals, improve the accuracy of the detection signal, thereby improving the accuracy of the single-point detection data and calibration data, and further improving the accuracy of the areal density data.

[0112] According to some embodiments of this application, refer to Figure 7 The calibration component 4 includes a calibration tray 41, a rotating tray 42, multiple calibration plate chucks 43, and a drive component 44. The calibration tray 41 is fixedly connected to the frame 1. The rotating tray 42 is disposed on the calibration tray 41 and has multiple mounting holes along its circumference. The calibration plate chucks 43 are connected to the rotating tray 42 through the mounting holes, and the calibration plate chucks 43 are detachably mounted with calibration plates 6. The drive component 44 is drively connected to the rotating tray 42 and is communicatively connected to the controller. The drive component 44 is used to drive the rotating tray 42 to rotate under the control of the controller. It should be noted that the controller and its connections are not shown in the figure.

[0113] In this embodiment of the application, the calibration component 4 includes a calibration tray 41, a rotating tray 42, a plurality of calibration plate chucks 43, and a drive component 44.

[0114] The calibration tray 41 is fixedly connected to the frame 1. A rotating tray 42 is mounted on the calibration tray 41, and the rotating tray 42 has multiple mounting holes along its circumference. A calibration plate chuck 43 is embedded in one of the mounting holes of the rotating tray 42; different calibration plates 6 can be installed or removed from different calibration plate chucks 43. A drive unit 44 is also mounted on the calibration tray 41 and is connected to the rotating tray 42 in a transmission manner.

[0115] The drive component 44 is also connected in communication with the controller, which controls the drive component 44. The drive component 44 can drive the rotating tray 42 to rotate, so that the calibration plate 6 installed on the rotating tray 42 is rotated into the detection area of ​​the single-point detection component 3.

[0116] In the above embodiments, the calibration component includes a calibration tray, a rotating tray, multiple calibration plate chucks, and a driving component; the driving component drives the rotating tray to rotate under the control of the controller. In the technical solution of this application embodiment, the calibration component can be disassembled and installed with multiple calibration plates, and the driving component can drive the rotating tray to rotate different calibration plates into the detection area of ​​the single-point detection component. In this way, the efficiency of changing calibration plates can be improved, and it is applicable to different detection scenarios.

[0117] According to some embodiments of this application, refer to Figure 8 The calibration component 4 also includes a positioner 45; the positioner 45 is disposed on the calibration tray 41, and the positioning part of the positioner 45 faces the rotating tray 42; the positioner 45 is communicatively connected to the controller; the positioner 45 is used to position the rotation angle of the rotating tray 42 under the control of the controller. It should be noted that the controller and its connection relationship are not shown in the figure.

[0118] In this embodiment, the rotating tray 42 is provided with multiple grooves, each groove corresponding to a mounting hole. The calibration component 4 also includes a positioner 45; the positioner 45 is disposed on the calibration tray 41, and the positioning part faces the rotating tray 42.

[0119] The positioner 45 is connected to the controller. After the rotating tray 42 rotates to a preset angle, the positioner 45 extends its positioning part under the control of the controller. The positioning part engages with the groove on the rotating tray 42 to lock the rotating tray 42, thus stopping the rotating tray 42 from rotating. Under the control of the controller, the positioner 45 retracts its positioning part, causing it to move out of the groove on the rotating tray 42, so that the rotating tray 42 can continue to rotate under the drive of the drive component 44.

[0120] In the above embodiments, the calibration component further includes a positioner; the positioner, under the control of the controller, positions the rotation angle of the rotating tray. In the technical solution of this application embodiment, the positioner can accurately position the rotation angle of the rotating tray, thereby rotating a suitable calibration plate into the detection area of ​​the single-point detection component, and performing more accurate verification of the single-point detection data.

[0121] According to some embodiments of this application, refer to Figure 8 The calibration component 4 also includes a dust cover 46; the dust cover 46 covers the rotating tray 42 and has through holes.

[0122] In this embodiment, the calibration component 4 further includes a dust cover 46; the dust cover 46 covers the rotating tray 42. The dust cover 46 is provided with a through hole, and when the rotating tray 42 stops rotating, the through hole of the dust cover 46 is directly opposite the calibration piece 6 in the vertical direction.

[0123] In the above embodiments, the calibration component also includes a dust cover. In the technical solution of this application embodiment, the dust cover can cover the rotating tray outside the through hole, which protects the calibration sheet on the rotating tray, reduces the adsorption of dust on the calibration sheet, and can also reduce the influence of environmental factors (air pressure, temperature, etc.) on the calibration sheet, thereby improving the accuracy and reliability of the areal density data.

[0124] According to some embodiments of this application, refer to Figure 9 The frame 1 includes a base 11, two side walls 12 and a top cover 13. The two side walls 12 are respectively installed at both ends of the base 11, and the top cover 13 is installed on the two side walls 12 at the ends away from the base 11. The two ends of the line detection component 2 are respectively fixedly connected to the two side walls 12. The two ends of the single-point detection component 3 are respectively fixedly connected to the two side walls 12. The calibration component 4 is fixedly installed on one side wall 12.

[0125] In this embodiment of the application, the frame 1 includes a base 11, two side walls 12 and a top cover 13. The two side walls 12 are respectively installed at both ends of the base 11, and the top cover 13 is installed on the top of the two side walls 12.

[0126] The two ends of the line detection assembly 2 are fixedly connected to the two side walls 12, respectively. In some other embodiments, the line detection assembly 2 includes a line source 21 and an array detector 22, the two ends of the line source 21 are fixedly connected to the two side walls 12, and the top of the array detector 22 is fixedly connected to the top cover 13 of the frame 1.

[0127] The single-point detection component 3 includes a radiation source slide rail 33 and a detector slide rail 34. The two ends of the radiation source slide rail 33 are fixedly connected to the two side walls 12 respectively; the two ends of the detector slide rail 34 are fixedly connected to the two side walls 12 respectively.

[0128] The calibration component 4 is fixedly mounted to a side wall 12.

[0129] It should be noted that the connection methods between the line detection component 2, the single-point detection component 3, and the calibration component 4 and the rack 1 are not limited to the above examples, and can be set according to the actual situation.

[0130] In some embodiments, a fixing component is provided under the base 11 to fix the base 11 to the ground. Alternatively, a pulley is provided under the base 11, which can be used to move the areal density measurement system to other locations.

[0131] In the above embodiments, the frame includes a base, two side walls and a top cover. In the technical solution of this application embodiment, the line detection component, the single-point detection component and the calibration component are fixed by the base, the side walls and the top cover, thereby stabilizing the entire areal density measurement system.

[0132] According to some embodiments of this application, the areal density measurement system further includes an output component; the output component is communicatively connected to a controller; the output component is used to output areal density data of the electrode sheet.

[0133] In this embodiment, the areal density measurement system further includes an output component; the output component may include a display screen, an indicator light, and a speaker. The output component is communicatively connected to a controller. After calculating the areal density data of the electrode, the controller can display the areal density data through the display screen and indicator light, or broadcast the areal density data through the speaker.

[0134] In some embodiments, the controller can generate a chart based on the areal density data of the electrode within a preset time period, and display the chart on a display screen.

[0135] In some embodiments, the controller may also output alarm information indicating abnormality in the areal density measurement system or alarm information indicating abnormal areal density data through the output component.

[0136] In some embodiments, the controller may further include a communication component, through which the controller uploads areal density data, line detection data, single-point detection data, and calibration data to the server for data collection, storage, analysis, querying, etc.

[0137] In the above embodiments, the areal density measurement system further includes an output component; the output component outputs the areal density data of the electrode sheet. In the technical solution of this application embodiment, the output component can intuitively display or broadcast the areal density data, enabling production line personnel to obtain the data in a timely manner and perform corresponding processing.

[0138] 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.

[0139] The embodiments described above are merely illustrative of several implementation methods of this application, intended to facilitate a detailed understanding of the technical solutions of this application, but should not be construed as limiting the scope of protection of the utility model patent. 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 scope of protection of this application. It should be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the scope of protection of the appended claims. Therefore, the scope of protection of this patent application should be determined by the content of the appended claims, and the specification and drawings can be used to interpret the content of the claims.

Claims

1. A surface density measurement system, characterized in that, The areal density measurement system includes a frame, a line detection component, a single-point detection component, a calibration component, and a controller; The line detection component is arranged along a first direction of the frame, the single-point detection component is movable along the first direction, and the calibration component is arranged on one side of the line detection component; the controller is communicatively connected to the line detection component, the single-point detection component and the calibration component respectively. The line detection component is used to perform multi-point detection on the electrode during the electrode tape-carrying process to obtain line detection data; The single-point detection component is used to perform single-point detection on the electrode during the electrode tape-carrying process to obtain single-point detection data, and to detect the calibration plate installed in the calibration component to obtain calibration data. The controller is used to determine the areal density data of the electrode based on the line detection data, the single-point detection data, and the calibration data.

2. The areal density measurement system according to claim 1, characterized in that, The line detection assembly includes a line source and an array detector; both the line source and the array detector are arranged along the first direction, and there is a first preset distance between the line source and the array detector for the electrode sheet to travel; the controller is communicatively connected to the line source and the array detector respectively; The linear radiation source is used to emit probe rays toward the electrode under the control of the controller; The array detector is used to generate the line detection data based on the detection rays passing through the pole pieces, and to transmit the line detection data to the controller.

3. The areal density measurement system according to claim 2, characterized in that, The linear ray source includes a plurality of point ray sources arranged along the first direction; The array detector comprises multiple radiation detectors arranged in an array.

4. The areal density measurement system according to claim 1, characterized in that, The single-point detection component includes a single-point radiation source, a single-point detector, a radiation source slide rail, and a detector slide rail; The radioactive source slide rail and the detector slide rail are arranged along the first direction; The single-point radiation source can move along the radiation source slide rail, the detector slide rail can move along the detector slide rail, and the single-point radiation source and the single-point detector are spaced by a second preset distance to allow the electrode to travel; The single-point radiation source is used to move under the control of the controller and emit probe rays toward the electrode or the calibration plate; The single-point detector is used to generate single-point detection data based on the detection rays passing through the electrode, generate calibration data based on the detection rays passing through the calibration plate, and transmit the single-point detection data and the calibration data to the controller.

5. The areal density measurement system of claim 4, wherein, The single-point detector includes a radiation detector and a signal processor; the signal processor is connected to both the radiation detector and the controller. The radiation detector is used to generate an electrode detection signal based on the detection rays passing through the electrode, and to generate a calibration detection signal based on the detection rays passing through the calibration assembly. The signal processor is configured to generate the single-point detection data based on the electrode detection signal, generate the calibration data based on the calibration detection signal, and transmit the single-point detection data and the calibration data to the controller.

6. The areal density measurement system according to claim 1, characterized in that The calibration assembly includes a calibration tray, a rotary tray, multiple calibration plate chucks, and a drive component; The calibration tray is fixedly connected to the frame; The rotating tray is mounted on the calibration tray, and the rotating tray has multiple mounting holes along its circumference; The calibration plate chuck is connected to the rotating tray through the mounting hole, and the calibration plate chuck is detachable for mounting calibration plates. The driving component is connected to the rotating tray via a transmission, and the driving component is also connected to the controller via a communication connection; the driving component is used to drive the rotating tray to rotate under the control of the controller.

7. The areal density measurement system according to claim 6, characterized in that, The calibration component further includes a positioner; the positioner is disposed on the calibration tray, and the positioning part of the positioner faces the rotating tray; the positioner is communicatively connected to the controller; The positioner is used to position the rotation angle of the rotating tray under the control of the controller.

8. The areal density measurement system according to claim 6, characterized in that, The calibration component also includes a dust cover; the dust cover covers the rotating tray and has through holes.

9. The areal density measuring system according to claim 1, characterized in that, The frame includes a base, two side walls, and a top cover. The two side walls are respectively installed at both ends of the base, and the top cover is installed on one end of the two side walls away from the base. The two ends of the line detection assembly are respectively fixedly connected to the two side walls; The two ends of the single-point detection component are respectively fixedly connected to the two side walls; The calibration component is fixedly mounted to one of the sidewalls.

10. The areal density measurement system according to any one of claims 1-9, characterized in that, The areal density measurement system further includes an output component; the output component is communicatively connected to the controller. The output component is used to output the areal density data of the electrode.

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