White granulated sugar black spot detection device

Abstract

The utility model belongs to the technical field of material black spot detection, and discloses a white granulated sugar black spot detection device which comprises a base, a support, an illuminating lamp, a trowelling assembly, a pressing cylinder, a compaction part and a standard plate, one end of the support is fixed to the base, the other end of the support is connected to the illuminating lamp, and the trowelling assembly and the compaction part are both rotationally connected to the support. The pressing cylinder is movably arranged in the compacting part, the flattening assembly can flatten the white granulated sugar on the base, the compacting part can compact the flattened white granulated sugar after the pressing cylinder is pressed, and the standard plate is placed above the compacted white granulated sugar so as to count black spots on the white granulated sugar. According to the integrated device, white granulated sugar can be trowelled through the troweling assembly, the white granulated sugar is compacted through the compacting part, observation is carried out through the standard plate so as to detect the number of black spots, and the integrated device not only simplifies the identification mode and improves the detection efficiency, but also optimizes the experimental operation.

Description

Technical Field

[0001] The utility model relates to the technical field of material black spot detection, in particular to a white sugar black spot detection device. Background Art

[0002] Black spot detection is a component of the sensory monitoring of incoming materials, such as white sugar, and primarily adheres to the black spot testing requirements outlined in the "White Sugar Test Method." Currently, black spot detection is performed using a white magnetic disk and glass plate. However, during the test, operators are required to identify the number of black spots larger than 0.2 mm. The size of these black spots cannot be directly measured, and observation is difficult with the naked eye, resulting in significant errors. Therefore, ensuring that the detection method meets the requirements of the testing standards while simplifying identification methods, improving detection efficiency, and optimizing experimental procedures remains a challenge currently facing researchers in this field. Utility Model Content

[0003] The purpose of the utility model is to provide a white sugar black spot detection device to ensure that the detection method meets the requirements of the detection standard while simplifying the identification method, improving the detection efficiency and optimizing the experimental operation.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A device for detecting black spots in white sugar, comprising:

[0006] A base, a bracket and a lighting lamp, wherein one end of the bracket is fixed to the base and the other end is connected to the lighting lamp;

[0007] A smoothing component, a pressing cylinder, and a compacting component, wherein the smoothing component and the compacting component are both rotatably connected to the bracket, and the pressing cylinder is movably disposed in the compacting component. The smoothing component can smooth the white sugar on the base, and pressing the pressing cylinder enables the compacting component to compact the smoothed white sugar.

[0008] A standard plate is placed on top of the compacted sugar to count the black spots on the sugar.

[0009] Optionally, it also includes a camera and an image processor, both of which are arranged on the top of the bracket and are connected to the computer. The camera can take a panoramic photo of the experimental field of view, transmit it to the image processor and then send it to the computer for statistical analysis of the black spots.

[0010] Optionally, a scanning system is also included, which is communicatively connected to the computer and can perform a panoramic scan of the experimental field of view to transmit data to the computer for statistical analysis of black spots.

[0011] Optionally, a receiving groove is provided on the base, and the white sugar is placed in the receiving groove and can be flattened and compacted in the receiving groove.

[0012] Optionally, a circular hole is provided through the bottom of the accommodating groove, and a baffle is slidably provided on the base. The baffle is provided at the bottom of the accommodating groove and can close and open the circular hole.

[0013] Optionally, the smoothing assembly includes a ring, a spiral plate and a handle, wherein the ring is rotatably connected to the bracket, the spiral plate is movably arranged in the ring, the handle is connected to the spiral plate, and rotating the handle can drive the spiral plate to rotate relative to the ring to smooth the white sugar.

[0014] Optionally, the compacting component includes a support cylinder, an elastic member and a pressure plate assembly, a limiting ring is provided in the support cylinder, the two sides of the elastic member are respectively connected to the limiting ring and the pressure plate assembly, and the pressing cylinder is connected to the pressure plate assembly and can push the pressure plate assembly toward the base.

[0015] Optionally, the pressing plate assembly includes a pressing plate and a connecting column, one end of the connecting column is connected to the pressing cylinder, and the other end is fixed to the pressing plate. The pressing plate can compact the smoothed white sugar under the drive of the pressing cylinder.

[0016] Optionally, a threaded hole is provided on the pressing cylinder, and an external thread is provided on the outer side of the connecting column, and the connecting column can be screwed into the threaded hole.

[0017] As an option, the standard plate is made of a transparent organic glass plate and is set as a square plate with grid lines, and the spacing of the grid lines is set to 0.2 mm.

[0018] Beneficial effects of the utility model:

[0019] In the present invention, the base provides a stable support for the entire experiment, and the experimental field of view can be illuminated by the lighting lamp, which is convenient for checking black spots. Furthermore, the smoothing component can smooth the white sugar so that it can be evenly distributed on the base, and at the same time, it is compacted by the compacting component, which is convenient for subsequent observation using a standard plate to detect the number of black spots. Specifically, it can be compacted by pressing the pressing cylinder, so that the operator can adjust the compaction effect according to needs. Optionally, the lighting lamp is fixed by a bracket, and the smoothing component and the compacting component are both rotated and set on the bracket, so that the smoothing component and the compacting component can be adjusted to the top of the white sugar according to different operation requirements for operation. This integrated operation can greatly optimize the experimental operation and facilitate detection. Combined with the use of the standard plate, the recognition effect of black spots can be further improved, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the white sugar black spot detection device according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the white sugar black spot detection device according to an embodiment of the present invention performing a smoothing operation on white sugar;

[0022] Figure 3 This is a schematic diagram of the white sugar black spot detection device according to an embodiment of the present invention performing a flattening operation on the smoothed white sugar;

[0023] Figure 4 This is an exploded schematic diagram of the white sugar black spot detection device according to an embodiment of the present utility model;

[0024] Figure 5 2. It is a bottom view schematic diagram of the white sugar black spot detection device according to an embodiment of the present utility model;

[0025] Figure 6 It is an enlarged schematic diagram of a portion of the base structure of the white sugar black spot detection device according to an embodiment of the present utility model;

[0026] Figure 7 It is a structural schematic diagram of the standard plate in the white sugar black spot detection device described in an embodiment of the present utility model.

[0027] In the picture:

[0028] 10-base; 20-bracket; 30-lighting lamp; 40-smoothing assembly; 50-pressing cylinder; 60-compacting component; 70-standard plate; 11-baffle; 101-slot; 102-round hole; 103-accommodating groove; 41-round ring; 42-spiral plate; 43-handle; 501-threaded hole; 61-support cylinder; 611-limiting ring; 62-elastic member; 63-pressure plate assembly; 631-pressure plate; 632-connecting column. DETAILED DESCRIPTION

[0029] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the description of the present utility model, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] Black spot detection is a component of the sensory monitoring of incoming materials, such as white sugar, and primarily adheres to the black spot testing requirements outlined in the "White Sugar Test Method." Currently, black spot detection is performed using a white magnetic disk and glass plate. However, during the test, operators are required to identify the number of black spots larger than 0.2 mm. The size of these black spots cannot be directly measured, is difficult to observe with the naked eye, and can result in significant errors. Therefore, ensuring that the detection method meets the requirements of the testing standards while simplifying identification methods, improving detection efficiency, and optimizing experimental procedures remains a challenge currently facing researchers in this field.

[0033] The technical solution of this embodiment will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] like Figure 1-Figure 7 As shown, this embodiment provides a white sugar black spot detection device including a base 10, a bracket 20, a lighting lamp 30, a smoothing component 40, a pressing cylinder 50, a compacting part 60 and a standard plate 70. One end of the bracket 20 is fixed to the base 10, and the other end is connected to the lighting lamp 30. The smoothing component 40 and the compacting part 60 are both rotatably connected to the bracket 20. The pressing cylinder 50 is movably arranged in the compacting part 60. The smoothing component 40 can smooth the white sugar on the base 10, and after pressing the pressing cylinder 50, the compacting part 60 can compact the smoothed white sugar. The standard plate 70 is placed above the compacted white sugar to count the black spots on the white sugar.

[0035] Specifically, in this embodiment, the base 10 provides a stable support for the entire experiment, and the lighting lamp 30 can be used to illuminate the experimental field of view, making it easier to check for black spots. Furthermore, the smoothing component 40 can smooth the white sugar so that it can be evenly distributed on the base 10, and at the same time, it can be compacted by the compacting component 60, which is convenient for subsequent observation using the standard plate 70 to detect the number of black spots. Specifically, it can be compacted by pressing the pressing cylinder 50, so that the operator can adjust the compaction effect as needed. Optionally, the lighting lamp 30 is fixed by the bracket 20, and the smoothing component 40 and the compacting component 60 are both rotated and set on the bracket 20, so that the smoothing component 40 and the compacting component 60 can be adjusted to the top of the white sugar according to different operating requirements for operation. This integrated operation can greatly optimize the experimental operation and facilitate detection. Combined with the use of the standard plate 70, the recognition effect of black spots can be further improved, thereby improving detection efficiency.

[0036] The specific structure of the white sugar black spot detection device in this embodiment is described below.

[0037] like Figure 1 and Figure 7 As shown, the white sugar black spot detection device in this embodiment includes a base 10, a bracket 20, a lighting fixture 30, a smoothing assembly 40, a pressing cylinder 50, a compacting component 60, and a standard plate 70. Optionally, in this embodiment, one end of the bracket 20 is fixed to the base 10, and the bracket 20 is vertically disposed on the base 10. Furthermore, the other end of the bracket 20 is connected to the lighting fixture 30 for illuminating the top of the base 10. Furthermore, the pressing cylinder 50 is movably disposed within the compacting component 60, and both the smoothing assembly 40 and the compacting component 60 are rotatably connected to the bracket 20. This allows the smoothing assembly 40 and the compacting component 60 to smooth and compact the white sugar on the base 10, respectively, thereby facilitating the counting of black spots in the white sugar. Optionally, pressing the pressing cylinder 50 causes the compacting component 60 to compact the smoothed white sugar, thereby evenly distributing the white sugar and improving the efficiency of black spot counting. For example, in this embodiment, the standard plate 70 is placed on top of the compacted white sugar, so that the black spots can be quickly counted and the statistical efficiency can be improved.

[0038] For example, the white sugar black spot detection device in this embodiment also includes a camera and an image processor, and both are arranged on the top of the bracket 20, and are both connected to the computer for communication, so that the camera can take a panoramic photo of the experimental field of view, and then transmit it to the image processor for processing until the result is sent to the computer, so as to perform automatic statistical analysis of the black spots, which can effectively avoid the complicated operations such as manual on-site observation in the prior art and improve the detection efficiency. In other embodiments, a scanning system can also be provided, and the scanning system can be connected to the computer for communication, so that the experimental field of view can be directly scanned in a panoramic manner, and the data can be sent to the computer to realize automatic statistical analysis of the black spots. Accordingly, other devices that can automatically count the number of black spots can also be provided, which will not be repeated here.

[0039] Combine Figure 1 and Figure 4-Figure 6 As shown, in this embodiment, the base 10 is provided with a baffle 11, a slot 101, a circular hole 102, and a receiving groove 103. Specifically, the receiving groove 103 is provided on the top surface of the base 10 for placing white granulated sugar. The white granulated sugar can be smoothed in the receiving groove 103 by the smoothing assembly 40 and compacted by the compacting component 60. The provision of the receiving groove 103 can effectively prevent the white granulated sugar from being scattered on the base 10, thereby controlling the experimental field of view and improving the statistical efficiency of black spots. Furthermore, the bottom of the receiving groove 103 is provided with a circular hole 102, and the baffle 11 is slidably provided on the base 10 and located at the bottom of the receiving groove 103, so that the circular hole 102 can be closed and opened by the baffle 11. Optionally, the base 10 is made of white plexiglass and has dimensions of 1.2m long, 0.6m wide, and 3cm high. The radius of the receiving groove 103 is 28.4cm.

[0040] Exemplarily, when the baffle 11 closes the circular hole 102, the white sugar can be smoothed and compacted on the receiving groove 103; when the baffle 11 opens the circular hole 102, the operator can collect the white sugar in the receiving groove 103 below the circular hole 102, so as to collect the white sugar as soon as possible after the black spots are counted. Optionally, the aperture of the circular hole 102 is set to 5 cm. Exemplarily, a sample container can be embedded in the receiving groove 103 to place the white sugar, and a hole is opened at the bottom of the sample container to connect to the circular hole 102. Furthermore, the radius of the sample container is set to 28.2 cm, the height is set to 3 cm, and the surface area is set to 0.25 cm 2 .

[0041] like Figure 5 and Figure 6As shown, in this embodiment, the slot 101 is opened on the bottom surface of the base 10. Specifically, the slot 101 is connected to the accommodating groove 103 through the circular hole 102, and the baffle 11 can be inserted into the slot 101 to realize the sliding setting on the base 10. Furthermore, the slot 101 is set as a T-slot, and the baffle 11 can be limited in the T-slot, so as to ensure the stable installation of the baffle 11 and prevent it from falling, while ensuring the closing and opening of the circular hole 102 by the baffle 11. For example, an operating long hole is provided at one end of the baffle 11, so that the operator can quickly change the position of the baffle 11 by operating the long hole. Furthermore, a number of support columns are provided under the base 10 to ensure the stability of the base 10 during the experiment.

[0042] like Figure 4 As shown, in this embodiment, the bottom of the bracket 20 is provided with an external thread, and the base 10 is provided with a mounting hole. For example, an internal thread can be provided in the mounting hole, so that the bracket 20 can be stably screwed into the mounting hole. In other embodiments, after the bracket 20 is passed through the mounting hole, nuts are provided on the upper and lower sides of the base 10, and the nuts are screwed to the bracket 20, so that the bracket 20 is fixedly mounted on the base 10. Furthermore, the lighting lamp 30 is provided as a ring lamp to improve the effective illumination of the experimental field of view, so as to facilitate the equipment or operators to take pictures and observe black spots in white sugar. For example, the height of the bracket 20 is set to 18 cm, the diameter is set to 1 cm and it is made of stainless steel, and the illumination of the lighting lamp 30 is ≥750lx.

[0043] like Figure 2 and Figure 3As shown, in this embodiment, the smoothing assembly 40 includes a ring 41, a spiral plate 42 and a handle 43. Optionally, a connecting plate extends from the outside of the ring 41, and the other end of the connecting plate is rotatably connected to the bracket 20 via a bearing, so that the smoothing assembly 40 can rotate relative to the bracket 20. When performing the smoothing operation, the smoothing assembly 40 is rotated to the top of the receiving groove 103 to perform the smoothing operation, and after the smoothing is completed, the smoothing assembly 40 is promptly rotated out to facilitate the compaction operation of the subsequent compacting component 60. Specifically, the spiral plate 42 is movably arranged in the ring 41, and the handle 43 is connected to the spiral plate 42. For example, the handle 43 is inserted into the ring 41 and extends outside the ring 41, so that rotating the handle 43 can drive the spiral plate 42 to rotate relative to the ring 41 to smooth the white granulated sugar. Optionally, a rotation channel is provided on the ring 41, and the handle 43 can slide in the rotation channel. The number and length of the rotation channel settings can be set as needed, which will not be described in detail here. Furthermore, the spiral plate 42 includes a smoothing surface, a connecting surface, and a top surface, all of which are spirally connected. The smoothing surface is located at the bottom and is used to smooth the white sugar. The connecting surface is located in the middle, and the upper and lower sides of the connecting surface are smoothly connected to the top and smoothing surfaces, respectively. For example, the radius of the ring 41 is set to 28.2 cm and the thickness is set to 5 cm.

[0044] Combine Figure 3-Figure 5 As shown, in this embodiment, a threaded hole 501 is provided in the pressing cylinder 50, and the compacting component 60 includes a support cylinder 61, an elastic member 62 and a pressure plate assembly 63, and a limit ring 611 is provided in the support cylinder 61, and the pressure plate assembly 63 includes a pressure plate 631 and a connecting column 632. Optionally, in this embodiment, the pressing cylinder 50 is configured as a cylindrical structure, and a threaded hole 501 is provided at the bottom for connecting the compacting component 60. Specifically, the support cylinder 61 is also configured as a cylindrical structure, and the interior is configured as a hollow to facilitate the subsequent pressing of the pressing cylinder 50. Furthermore, a protruding plate is protruded from the outside of the support cylinder 61, and the other side of the protruding plate is rotatably connected to the bracket 20 to achieve a rotational connection between the compacting component 60 and the bracket 20. Optionally, the limit ring 611 is located inside the support cylinder 61, and the inner diameter of the limit ring 611 is larger than the outer diameter of the pressing cylinder 50 to prevent the limit ring 611 from interfering with the pressing cylinder 50 when it moves axially. For example, the pressing cylinder 50 is made of white organic glass and has a height of 18 cm. Furthermore, the radius of the support cylinder 61 is 28.2 cm, the height is 10 cm, and a limiting ring 611 is provided in the support cylinder 61 at a position 5 cm below the top.

[0045] Specifically, the elastic member 62 is configured as a stainless steel spring compression coil, and the upper and lower sides of the elastic member 62 are respectively connected to the limiting ring 611 and the pressure plate assembly 63, thereby enabling an elastic connection between the pressure plate assembly 63 and the support tube 61. For example, the telescopic length of the elastic member 62 is set to 5cm-20cm. Furthermore, the pressing tube 50 is connected to the pressure plate assembly 63 and can push the pressure plate assembly 63 to move toward the base 10, and then after the pressure on the pressing tube 50 is removed, the pressure plate assembly 63 can drive the pressing tube 50 to return to its initial position under the action of the elastic member 62. Specifically, the elastic member 62 is sleeved on the outside of the pressing tube 50 so as not to affect the force applied by the pressing tube 50 to the pressure plate assembly 63. Furthermore, one end of the connecting column 632 in the pressure plate assembly 63 is connected to the pressing tube 50, and the other end is fixed to the pressure plate 631, thereby achieving a stable connection between the pressure plate assembly 63 and the pressing tube 50. Optionally, the outer side of the connecting post 632 is provided with an external thread, thereby enabling the connecting post 632 to be screwed into the threaded hole 501 on the pressing cylinder 50, thereby achieving a tight connection between the two. Specifically, after pressing the pressing cylinder 50, the pressing cylinder 50 can drive the pressing plate 631 to move toward the base 10 until the smoothed white sugar in the receiving groove 103 is compacted, thereby exposing the black spots as much as possible, thereby facilitating detection and statistics. Exemplarily, the pressing plate 631 is made of a plexiglass plate with a thickness of 4 mm and a radius of 28.1 cm.

[0046] like Figure 7 As shown, in this embodiment, the standard plate 70 is made of a transparent organic glass plate and is configured as a square plate with grid lines. The grid lines are spaced 0.2 mm apart, so that the number of black spots can be counted promptly using the standard plate 70. Accordingly, the grid lines on the standard plate 70 are grayish white, and the side length of the standard plate 70 is 10 cm, making it easier to observe the black spots.

[0047] Working principle: embed the sample container in the accommodating groove 103 and fix the bracket 20 in the base 10; introduce 2.5 kg of white sugar into the sample container, rotate the handle 43 to make the spiral plate 42 smooth the white sugar; then rotate the ring 41 to make the smoothing component 40 away from the sample container, and then press the pressing cylinder 50 to make the pressing plate 631 compact the smoothed white sugar; then lift the pressing cylinder 50 and rotate it to the other side away from the sample container; turn on the lighting 30, place the standard plate 70, turn on the camera or scanning system to take pictures or scan the experimental field of view, and confirm the number of black spots larger than 0.2 mm through the computer to complete the black spot detection operation; finally, slide the baffle 11, open the circular hole 102 under the base 10 to collect the white sugar, and end the detection.

[0048] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. White sugar black spot detection device, characterized in that: include: A base (10), a bracket (20) and a lighting lamp (30), wherein one end of the bracket (20) is fixed to the base (10) and the other end is connected to the lighting lamp (30); A smoothing component (40), a pressing cylinder (50) and a compacting component (60), wherein the smoothing component (40) and the compacting component (60) are both rotatably connected to the bracket (20), the pressing cylinder (50) is movably arranged in the compacting component (60), the smoothing component (40) can smooth the white sugar on the base (10), and after pressing the pressing cylinder (50), the compacting component (60) can compact the smoothed white sugar; A standard plate (70) is placed on top of the compacted white sugar to count the black spots on the white sugar.

2. The white sugar black spot detection device according to claim 1, characterized in that: It also includes a camera and an image processor, both of which are arranged on the top of the bracket (20) and are connected to the computer for communication. The camera can take a panoramic photo of the experimental field of view, and transmit it to the image processor and then to the computer for statistical analysis of the black spots.

3. The device for detecting black spots in granulated sugar according to claim 1, wherein: The device also includes a scanning system, which is connected to the computer for communication and can perform a panoramic scan of the experimental field of view to transmit data to the computer for statistical analysis of the black spots.

4. The device for detecting black spots in granulated sugar according to claim 1, wherein: The base (10) is provided with a receiving groove (103), and the white sugar is placed in the receiving groove (103) and can be smoothed and compacted in the receiving groove (103).

5. The device for detecting black spots in granulated sugar according to claim 4, characterized in that: A circular hole (102) is provided through the bottom of the accommodating groove (103), and a baffle (11) is slidably provided on the base (10). The baffle (11) is provided at the bottom of the accommodating groove (103) and can close and open the circular hole (102).

6. The device for detecting black spots in granulated sugar according to claim 1, wherein: The smoothing component (40) comprises a circular ring (41), a spiral plate (42) and a handle (43), wherein the circular ring (41) is rotatably connected to the bracket (20), the spiral plate (42) is movably arranged in the circular ring (41), and the handle (43) is connected to the spiral plate (42), and rotating the handle (43) can drive the spiral plate (42) to rotate relative to the circular ring (41) to smooth the white sugar.

7. The device for detecting black spots in granulated sugar according to claim 1, wherein: The compacting component (60) includes a support cylinder (61), an elastic member (62) and a pressure plate assembly (63); a limiting ring (611) is provided in the support cylinder (61); two sides of the elastic member (62) are respectively connected to the limiting ring (611) and the pressure plate assembly (63); the pressing cylinder (50) is connected to the pressure plate assembly (63) and can push the pressure plate assembly (63) toward the base (10).

8. The device for detecting black spots in granulated sugar according to claim 7, characterized in that: The pressing plate assembly (63) includes a pressing plate (631) and a connecting column (632), one end of the connecting column (632) is connected to the pressing cylinder (50), and the other end is fixed to the pressing plate (631). The pressing plate (631) can compact the smoothed white sugar under the drive of the pressing cylinder (50).

9. The device for detecting black spots in granulated sugar according to claim 8, characterized in that: The pressing cylinder (50) is provided with a threaded hole (501), and the outer side of the connecting column (632) is provided with an external thread, and the connecting column (632) can be screwed into the threaded hole (501).

10. The device for detecting black spots in granulated sugar according to claim 1, wherein: The standard plate (70) is made of a transparent organic glass plate and is configured as a square plate with grid lines, wherein the spacing between the grid lines is configured to be 0.2 mm.

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