Method for detecting electrical parameters of dielectric sheet of electrode array

Abstract

The invention provides an electrical parameter detection method of a dielectric sheet of an electrode array, which is applied to a detection device with a conductive sheet, a conductive solution is configured in the detection device, and the detection method is characterized by comprising the following steps: step 1, placing a to-be-detected electrode array, a sufficient conductive solution is filled between each dielectric sheet and each conductive sheet of the to-be-detected electrode array; 2, the electrode array to be detected and the detection device are externally connected with a test instrument at the same time, so that the electrical parameters of the corresponding dielectric sheets are obtained. According to the test method, the electrical parameters of the dielectric sheet of the electrode array can be accurately detected, and nondestructive detection can be realized.

Description

Technical Field

[0001] This application relates to a method for detecting the electrical parameters of a dielectric sheet in an electrode array. Background Technology

[0002] Tumor electric field therapy (TEF) is a treatment method that uses an electric field generator to produce a low-intensity, medium-to-high-frequency, alternating electric field to interfere with the mitotic process of tumor cells. Studies have shown that TGF therapy is effective in treating glioblastoma, non-small cell lung cancer, and malignant pleural mesothelioma. The electric field applied in this treatment method can affect the aggregation of microtubules, prevent spindle formation, inhibit the mitotic process, and induce apoptosis in cancer cells.

[0003] Existing tumor electric field therapy systems mainly include an electric field generator that generates alternating electrical signals for tumor electric field therapy, an adapter electrically connected to the electric field generator, and multiple pairs of electrode pads electrically connected to the electric field generator via the adapter. The electric field generator transmits the alternating electrical signals for tumor electric field therapy to each pair of electrode pads through the adapter. Each pair of electrode pads is applied to opposite sides of the patient's tumor site, thereby applying an alternating electric field to the patient's tumor site for tumor electric field therapy.

[0004] The electrode array is the main functional structure of the electrode sheet. The electrode array includes a circuit board and dielectric sheets electrically connected to corresponding parts of the circuit board. Existing dielectric sheets are generally arranged in a circular shape, exposed and in direct contact with the human body surface. The electrical parameters of the dielectric sheets are the core components determining the performance of the electrode sheet. Relative permittivity and dielectric loss are two important criteria for evaluating the electrical parameters of the dielectric sheets. Therefore, a reliable and convenient testing device and method are needed to detect the electrical parameters of the dielectric sheets.

[0005] Currently, one of the upper and lower surfaces of the dielectric sheet on the electrode plate is coated with a metal layer for soldering to the circuit board, while the other side is not coated with a metal layer. There are two existing testing methods. One method is for dielectric sheets with a single-sided metal coating. During testing, a flexible conductive material, such as conductive gel, is first applied to the uncoated side, followed by the metal coating, forming a capacitor with double-sided conductivity. The capacitance and resistance values ​​are then measured and converted into relative permittivity and dielectric loss. However, this testing device has low efficiency, and the accuracy of the measured capacitance and resistance values ​​is not high due to the difficulty of the flexible conductive material making good contact with the dielectric sheet or its own high loss. The other testing device is for dielectric sheets with double-sided metal coatings. During testing, both sides of the dielectric sheet are coated with a metal layer, and then the capacitance and resistance values ​​are measured. After testing, one side of the metal coating needs to be peeled off, because only one side needs to be coated when the dielectric sheet is used on the electrode plate, and peeling off the metal coating is difficult. Therefore, this testing method is destructive.

[0006] Therefore, it is necessary to propose a new detection method. Summary of the Invention

[0007] This application provides a convenient and non-destructive method for detecting the electrical parameters of a dielectric sheet in an electrode array.

[0008] Specifically, this application is implemented through the following technical solution:

[0009] A method for detecting the electrical parameters of dielectric sheets in an electrode array is applied to a detection device with conductive sheets. The detection device circulates a conductive solution. The detection method includes: Step 2: placing the electrode array to be tested, such that sufficient conductive solution fills the space between each dielectric sheet and the conductive sheet in the electrode array to be tested; Step 3: simultaneously connecting the electrode array to be tested and the detection device to an external testing instrument to obtain the electrical parameters of the corresponding dielectric sheets.

[0010] Furthermore, the conductive solution is a potassium chloride solution or a sodium chloride solution.

[0011] Furthermore, in step 1, the temperature of the conductive solution needs to be controlled to keep it between 37°C and 40°C.

[0012] Furthermore, step 1 also includes placing a sufficient amount of conductive solution inside the detection device and circulating the conductive solution.

[0013] Furthermore, step 2 specifically involves moving the electrode array so that each dielectric sheet is sequentially positioned to correspond with the conductive sheet.

[0014] Furthermore, the electrical parameters of the dielectric sheet in step 3 include capacitance and resistance.

[0015] Furthermore, the detection device includes a mounting base, a detection seat fixed on the mounting base, and an electrode assembly. The detection seat has a test tank for containing a conductive solution. The electrode assembly has a conductive sheet, which is fixed to the bottom of the detection seat and in contact with the conductive solution. The electrode array is arranged above the test tank with the dielectric sheet facing downwards, and the dielectric sheet is in contact with the conductive solution.

[0016] Furthermore, the mounting base includes a base and a top plate fixed on the base. The base is provided with a reservoir for storing the conductive solution and a water pump for introducing the conductive solution in the reservoir into the test tank.

[0017] Furthermore, the mounting base is equipped with an external liquid storage pipe fixed on the top plate and, under the action of the water pump, guides the conductive solution from the liquid storage tank into the test tank.

[0018] Furthermore, the detection seat is provided with a liquid storage tank surrounding the test tank, and the top side of the test tank is provided with an overflow port for the conductive solution to overflow and flow into the liquid storage tank, and the liquid storage tank is connected to the liquid storage pool.

[0019] Furthermore, the external liquid storage tube is provided with a jacket and a vacuum port for extracting gas from the jacket.

[0020] Furthermore, the mounting base is provided with a liquid storage tube cap that seals the top opening of the external liquid storage tube.

[0021] Furthermore, the conductive sheet is provided with a first temperature measuring rod, which extends into the test groove.

[0022] Furthermore, the mounting base also includes a cover plate covering the liquid storage tank, a temperature measuring element fixed to the bottom side of the cover plate, and a second temperature measuring rod extending into the liquid storage tank.

[0023] Furthermore, the detection seat is a multi-hole detection seat, which is provided with multiple independent test tanks and liquid storage tanks. The test tanks are all located in the liquid storage tank. The multi-hole detection seat is provided with a test tank inlet that communicates with each of the test tanks and a liquid storage tank outlet that communicates with the liquid storage tank.

[0024] Furthermore, the electrode assembly has multiple conductive sheets and a circuit board electrically connected to the multiple conductive sheets, and each conductive sheet is individually set for each of the test slots.

[0025] The detection method of this application can accurately detect the electrical parameters of the dielectric sheet of the electrode array and can achieve non-destructive testing.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0027] Figure 1 This is a state diagram of the detection apparatus according to one embodiment of the present application when detecting an electrode array;

[0028] Figure 2 for Figure 1 A three-dimensional view of the detection device and dielectric sheet shown.

[0029] Figure 3 for Figure 1 Partial exploded perspective view of the detection device shown.

[0030] Figure 4 for Figure 1 Another exploded perspective view of the detection device shown.

[0031] Figure 5for Figure 1 Exploded view of the mounting base of the detection device shown;

[0032] Figure 6 for Figure 1 Another exploded view of the mounting base of the detection device shown;

[0033] Figure 7 for Figure 1 A perspective view of the detection seat of the detection device shown;

[0034] Figure 8 A perspective view of another embodiment of the detection device;

[0035] Figure 9 for Figure 8 An exploded perspective view of the detection device shown.

[0036] Figure 10 This is a flowchart illustrating the testing method of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] Detection device 100, electrode array 200, 200', wiring part 201, flexible circuit board 202, mounting base 1, base 11, top plate 12, first through hole 121, second through hole 122, observation window 123, liquid storage tank 13, liquid storage tank outlet 131, cover plate 14, perforation 141, observation hole 142, water pump 15, water pump inlet pipe 151, water pump outlet pipe 152, water pump control board 16, external liquid storage pipe 17, liquid storage pipe outlet 171, liquid storage pipe inlet 172, vacuum port 173, liquid storage pipe cover 18, temperature measuring element 19, second temperature measuring rod 19 1. Fixing part 192. Second temperature measuring lead 193. Detection seat 2. Test tank 21. Overflow port 211. Test tank inlet 22. Storage tank 23. Storage tank outlet 24. Hose 25. Electrode assembly 3. Conductive sheet 31. Conductive sheet lead 32. First temperature measuring rod 33. First temperature measuring lead 34. Fastener 35. Multi-hole detection seat 4. Second test tank 41. Second overflow port 411. Second test tank inlet 43. Second storage tank 42. Second storage tank outlet 44. Second electrode assembly 5. Circuit board 51. Second conductive sheet 52. Socket 53. Temperature measuring rod 54. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses, systems, devices, and methods consistent with some aspects of this application.

[0040] refer to Figure 1 and Figure 2 As shown, several paired electrode arrays 200 are connected to corresponding tumor electric field therapy devices (not shown) and applied to corresponding parts of the human body via adhesive (not shown). The tumor electric field therapy device (not shown) applies an alternating current signal for tumor treatment to the electrode arrays 200 to generate a medium-frequency (e.g., 50kHz to 1MHz), low-intensity alternating electric field between the paired electrode arrays 200, so as to perform electric field therapy on the corresponding tumor lesion area. The electrode arrays 200 include a flexible circuit board 202, a wiring portion 201 extending outward from the flexible circuit board 202, and several dielectric sheets (not shown) spaced apart on the flexible circuit board 202. A metal coating (not shown) is corresponding to each dielectric sheet (not shown) and disposed between the back of the corresponding dielectric sheet (not shown) and the flexible circuit board 202. This metal coating (not shown) is used to electrically connect each dielectric sheet (not shown) to the corresponding part of the flexible circuit board 202. The detection device 100 uses a conductive solution to perform batch electrical parameter testing on the dielectric sheets (not shown) of the electrode array 200. The basic principle of the detection is to sequentially arrange the metal coating (not shown) of the electrode array 200 under test, the dielectric sheet (not shown), the conductive solution of the detection device 100, and the conductive sheet 31 made of metal to form a detection capacitor, and then test the capacitance and resistance values ​​of the dielectric sheet (not shown) of the electrode array 200 under test. Specifically, the exposed front side of the dielectric sheet (not shown) of the electrode array 200 is not coated with a metal coating, while the back side of the dielectric sheet (not shown) that is attached to the corresponding part of the flexible circuit board 202 of the electrode array 200 is coated with a metal coating (not shown). The two conductors on either side of the detection capacitor are the metal coating (not shown) of the electrode array 200 under test and the conductive sheet 31 of the detection device 100, respectively. The conductive sheet 31 is connected to the front side of the dielectric sheet (not shown) through a conductive solution, while the metal coating (not shown) of the electrode array 200 under test is connected to the back side of the dielectric sheet (not shown). The dielectric of the detection capacitor is composed of the dielectric sheet (not shown). The dielectric sheet (not shown) of the electrode array 200 under test can be a ceramic dielectric sheet or a polymer dielectric film. The detection device 100 can also be equipped with a temperature control system (not shown) to control the test temperature of the electrode array 200, so that its operating temperature when detecting the electrical parameters of the dielectric sheet (not shown) is closer to the actual operating temperature of the electrode array 200, thereby ensuring the accuracy of the test data.

[0041] refer to Figure 3As shown, the detection device 100 includes a mounting base 1, a detection seat 2 fixed on the mounting base 1, and an electrode assembly 3 located between the mounting base 1 and the detection seat 2. The detection seat 2 has a test groove 21 with a top opening. A conductive solution is added to the test groove 21. The electrode array 200 is placed close to the test groove 21 with the dielectric sheet (not shown) facing downwards so that the dielectric sheet (not shown) contacts the conductive solution in the test groove 21. The electrode assembly 3 is located below the bottom wall of the test groove 21. The electrode assembly 3 has a sheet-like conductive sheet 31 that extends into the test groove 21 and contacts the conductive solution. The electrode assembly 3 is sealed to the bottom wall of the test groove 21 to prevent gaps from forming between the bottom wall of the test groove 21 and the conductive sheet 31, which would cause the conductive solution to leak out. The conductive sheet 31 is made of a corrosion-resistant material and has conductive leads 32 extending out through the conductive sheet 31, which can be electrically connected to an external testing instrument (such as an LCR tester). The electrode array 200 is provided with a wiring section 201 that is connected to the back of each dielectric sheet (not shown). The wiring section 201 is also connected to an external test instrument (such as an LCR tester), thus forming a detection circuit that uses the dielectric sheet (not shown) as the medium of the detection capacitor.

[0042] refer to Figure 4 , Figure 5 and Figure 6 As shown, the mounting base 1 supports the detection base 2 and the electrode assembly 3, and also provides a conductive solution for circulation within the test tank 21 of the detection base 2. The mounting base 1 includes a base 11, a top plate 12 covering the base 11, a liquid storage tank 13 located inside the base 11, a cover plate 14 covering the liquid storage tank 13, a water pump 15 and a water pump control board 16 located inside the base 11, and an external liquid storage pipe 17 and a liquid storage pipe cover 18 located on the top plate 12. The base 11 is a box-shaped structure with an open top, and the top plate 12 covers the top of the base 11, forming a box-shaped structure together with the base 11. The liquid storage tank 13 is also a box-shaped structure with an open top, used to store the conductive solution, and is made of corrosion-resistant materials such as stainless steel or anodized aluminum alloy. Its capacity is greater than 500ml, and it can be fixed inside the base 11 by screws (not shown). The cover plate 14 can be fixed to the top of the liquid storage tank 13 by screws (not shown). Both the water pump 15 and the water pump control board 16 are housed in the base 11 and located outside the liquid storage tank 13.

[0043] A liquid storage tank 13 has a liquid storage tank outlet 131 on one side of its bottom. A water pump 15 has a water pump inlet pipe 151, and the liquid storage tank outlet 131 is connected to the water pump inlet pipe 151. The liquid storage tank outlet 131 is the source of the conductive solution for the entire detection device 100. A temperature control system (not shown), such as a heating film or thermoelectric cooling element, can be installed on the back of the liquid storage tank 13 to heat or cool the conductive solution.

[0044] An external liquid storage tube 17 is fixed to the top plate 12 by screws (not shown). The external liquid storage tube 17 is a hollow tubular structure with an open top, and it has a liquid storage tube outlet 171 and a liquid storage tube inlet 172. The liquid storage tube inlet 172 is located at the bottom of the external liquid storage tube 17, and the liquid storage tube outlet 171 is located on the periphery of the external liquid storage tube 17. The water pump 15 also has a water pump outlet tube 152, which passes through the top plate 12 and connects to the liquid storage tube inlet 172 to pump the conductive solution in the liquid storage tank 13 into the external liquid storage tube 17. The liquid storage tube cover 18 is a rubber stopper, which can seal the top opening of the external liquid storage tube 17 and prevent the conductive solution from overflowing. When maintenance is required, the liquid storage tube cover 18 can be removed to facilitate cleaning of the external liquid storage tube 17. The top plate 12 is provided with a first through hole 121 through which the liquid inlet 172 of the liquid storage pipe passes and extends into the base 11.

[0045] refer to Figure 7 As shown, the test fixture 2 includes a test tank inlet 22 that communicates with the test tank 21. The test tank inlet 22 is connected to a flexible hose 25 (see figure). Figure 1 When the liquid outlet 171 of the external liquid storage tube is connected, the liquid level of the conductive solution in the external liquid storage tube 17 will be higher than the liquid level of the conductive solution in the test tank 21. Therefore, the conductive solution will flow into the test tank 21 of the test seat 2 by gravity potential energy.

[0046] The detection base 2 also includes a liquid storage tank 23 surrounding the test tank 21 and at least one liquid storage tank outlet 24 communicating with the liquid storage tank 23. The top of the test tank 21 has at least one overflow outlet 211. When the conductive solution in the test tank 21 reaches the height of the overflow outlet 211, it overflows through the overflow outlet 211 into the liquid storage tank 23, and then flows out of the detection base 2 through the liquid storage tank outlet 24. In this embodiment, the liquid storage tank outlet 24 is located at the bottom of the detection base 2. The top plate 12 has a second through hole 122 corresponding to the liquid storage tank outlet 24, and the cover plate 14 also has a perforation 141 corresponding to the liquid storage tank outlet 24. The liquid storage tank outlet 24 extends into the storage tank 13 through the second through hole 122 and the perforation 141, recovering the conductive solution overflowing from the test tank 21 into the storage tank 13. In this embodiment, the detection base 2 has two liquid storage tank outlets 24. The conductive solution enters the external storage pipe 17 from the storage tank 13 through the water pump 15, and then enters the test tank 21 of the test seat 2 under the action of gravitational potential energy and positive air pressure. The conductive solution in the test tank 21 overflows from the overflow port 211 at the top of the test tank into the storage tank 23, and then flows back into the storage tank 13 through the liquid outlet 24 of the storage tank to form a cycle.

[0047] With the above-described structure, the detection device 100 can automatically replenish the test tank 21 of the detection seat 2. Due to the surface tension of the water, the liquid level of the conductive solution is slightly higher than the overflow port by about 2 mm, making the liquid level of the conductive solution in the test tank 21 slightly higher than the side wall height of the test tank 21, thus achieving good contact with the dielectric sheet (not shown) of the electrode array 200 under test. This forms an automated and efficient detection device 100 that does not require frequent manual intervention of the conductive solution. The presence of the external liquid storage tube 17 can prevent air bubbles from entering the conductive solution, making the flow of the conductive solution smoother and more stable.

[0048] Please refer to Figure 4 and Figure 6 As shown, the top plate 12 is provided with an observation window 123, and the cover plate 14 is provided with an observation hole 142 corresponding to the observation window 123. The internal condition of the liquid storage tank 13, such as the volume and state of the conductive solution, can be observed through the observation window 123 and the observation hole 142. The external liquid storage tube 17 has a double-layer structure and is provided with a vacuum port 173. The vacuum port 173 is used to extract the gas in the interlayer of the external liquid storage tube 17 to achieve double-layer vacuum insulation, thereby reducing heat transfer of the conductive solution in the external liquid storage tube 17 and maintaining the temperature.

[0049] One end of the electrode assembly 3 is provided with the aforementioned conductive sheet lead 32, and the other end is provided with a first temperature measuring rod 33 and a first temperature measuring lead 34. The first temperature measuring rod 33 is fixed to the conductive sheet 31 by fasteners 35, forming an insulated and sealed connection with the conductive sheet 31. The conductive sheet lead 32 and the first temperature measuring lead 34 pass downward through the top plate 12 and enter the base 11, respectively, and are electrically connected to the control main board (not shown) inside the base 11. The first temperature measuring rod 33 extends into the test tank 21 to detect the temperature of the conductive solution in the test tank 21 in real time, and sends the temperature signal to the control main board (not shown) to control the temperature control system (not shown) connected to the control main board (not shown) to adjust the temperature of the conductive solution.

[0050] The base 11 also includes a temperature measuring element 19 disposed below the cover plate 14. The temperature measuring element 19 includes a second temperature measuring rod 191, a fixing part 192 for fixing the second temperature measuring rod 191, and a second temperature measuring lead 193 electrically connected to the second temperature measuring rod 191. The fixing part 192 is fixed to the bottom surface of the cover plate 14 by screws (not shown). The second temperature measuring lead 193 extends upward through the cover plate 14 into the base 11 and is electrically connected to the control main board (not shown) inside the base 11. The second temperature measuring rod 191 extends into the liquid storage tank 13 and contacts the conductive solution to detect the temperature of the conductive solution in the liquid storage tank 13 in real time, and sends the temperature signal to the control main board (not shown) to control the temperature control system (not shown) connected to the control main board (not shown) to adjust the temperature of the conductive solution.

[0051] refer to Figure 1and Figure 2 As shown, before testing, the detection device 100 first pours a sufficient amount of prepared conductive solution into the storage tank 13 through the detection seat 2. The conductive solution can be a solution with high concentration, safety, non-toxicity, and non-corrosiveness, such as potassium chloride solution or sodium chloride solution. At the same time, the power supply of the temperature control system (not shown) needs to be turned on to start cooling or heating the conductive solution to a preset temperature, which is 37°C to 40°C. Optionally, when the test only needs to be performed at room temperature, the detection device 100 can turn off the temperature control system (not shown) and the corresponding temperature measuring element, or directly omit the setting of the temperature control system (not shown) and the corresponding temperature measuring element. After the detection device 100 completes the above operations, the side of the electrode array 200 with the dielectric sheet (not shown) is placed downwards in contact with the conductive solution in the test groove 21 of the detection seat 2. Then, the capacitance and resistance values ​​of the dielectric sheet (not shown) can be tested by connecting the conductive sheet lead 32 and the wiring part 201 of the electrode array 200 using a testing instrument (such as an LCR meter) or a self-made detection circuit.

[0052] There are many methods for testing the fixed electrode array 200. A simple example is given below. For instance, for an electrode array 200 with a thick and heavy ceramic dielectric sheet, a clamp can be used to fix the side of the dielectric sheet (not shown). Then, a manual, sliding rail fixture, or automated robot mechanism can be used to operate the clamp, causing the corresponding dielectric sheet (not shown) in the electrode array 200 to move and align with the test seat 2 for testing. For an electrode array 200 with a light and thin flexible dielectric sheet, where the clamp has no force point or is prone to damaging the electrode array 200 during fixing, a negative pressure suction cup or strong magnet can be used to adhere and fix the side of the electrode array 200 away from the dielectric sheet (not shown). Then, a manual, sliding rail fixture, or automated robot mechanism can be used to operate the clamp, causing the corresponding dielectric sheet (not shown) in the electrode array 200 to move and align with the test seat 2 for testing.

[0053] This application also provides a method for detecting the electrical parameters of the dielectric sheet of an electrode array, applied to the aforementioned detection device 100, with reference to... Figure 10 The method includes:

[0054] Step 1: Place the electrode array 200 to be tested, so that the space between the dielectric sheet to be tested and the conductive sheet 31 is filled with a sufficient amount of conductive solution;

[0055] Step 2: Connect the electrode array 200 to the detection device 100 and then to an external testing instrument to obtain the electrical parameters of the dielectric sheet under test.

[0056] Specifically, the conductive solution in step 1 is either a potassium chloride solution or a sodium chloride solution; the temperature of the conductive solution in step 1 also needs to be controlled by a temperature control system (not shown) to keep it between 37°C and 40°C; step 1 also includes preparing a sufficient amount of conductive solution in the detection device and circulating the conductive solution.

[0057] Step 2 specifically involves moving the electrode array 200 so that each dielectric sheet to be tested is sequentially positioned to correspond with the conductive sheet 31.

[0058] The electrical parameters of the dielectric sheet to be tested in step 3 include capacitance and resistance.

[0059] It is understood that the detection seat 2 can be adjusted according to the configuration of different dielectric sheets in the electrode array 200 under test. In this embodiment, the detection seat 2 is shown in a two-hole form, which can detect two connected dielectric sheets (not shown) at the same time. In other embodiments, the structure of the detection seat 2 can also be changed to single-hole or multi-hole for testing. Depending on the shape of different dielectric sheets, it can also be adjusted to a rectangle, irregular shape, etc. The following is a brief introduction to one of the extended forms.

[0060] refer to Figure 8 and Figure 9 As shown, this application also provides a multi-hole detection seat 4 and a corresponding second electrode assembly 5. The multi-hole detection seat 4 can test multiple dielectric sheets (not shown) at the same time through multiple holes. This test is more efficient and more suitable for electrode arrays 200' with large spacing between adjacent dielectric sheets.

[0061] The porous detection base 4 has a structural framework that is basically the same as that of the detection base 2. The porous detection base 4 includes thirteen independent second test slots 41 and second liquid storage tanks 42 surrounding these second test slots 41, with all second test slots 41 located within the second liquid storage tanks 42. The distribution of the multiple second test slots 41 matches the positions of the dielectric sheets (not shown) of the electrode array 200'. The porous detection base 4 also includes second test slot inlets 43 connected to each second test slot 41 and second liquid storage tank outlets 44 connected to the second liquid storage tanks 42. The second test slot inlets 43 are connected to multiple second test slots 41 respectively, allowing conductive solution to be introduced into all second test slots 41 simultaneously. Each second test slot 41 has a second overflow outlet 411 at its upper end. The continuously accumulating conductive solution overflows through the second overflow outlets 411 of each second test slot 41 into the second liquid storage tank 42, and finally flows back to the storage tank 13 through the second liquid storage tank outlet 44, forming a cycle of conductive solution.

[0062] The second electrode assembly 5 includes a circuit board 51 and thirteen second conductive plates 52 electrically connected to the circuit board 51. Each second conductive plate 52 is individually provided for each second test tank 41. The second conductive plate 52 is located at the bottom of the second test tank 41 and is in contact with the conductive solution inside the second test tank 41. The circuit board 51 is provided with conductive traces (not shown) connecting each second conductive plate 52. The conductive traces (not shown) converge at the socket 53 of the circuit board 51, and are then electrically connected to an external testing instrument (e.g., an LCR meter) through a mating cable connector (not shown) that is compatible with the socket 53. This design improves the maintainability of the equipment. Optionally, a temperature measuring rod 54 may also be provided on the second conductive plate 52.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method for detecting the electrical parameters of a dielectric sheet in an electrode array, applied to a detection device having a conductive sheet, wherein the detection device is equipped with a conductive solution, characterized in that: The detection method includes: Step 1: Place the electrode array to be tested, ensuring that sufficient conductive solution fills the spaces between the dielectric and conductive sheets of the electrode array. Step 2: Connect the electrode array under test and the detection device to an external testing instrument simultaneously to obtain the electrical parameters of the corresponding dielectric sheet.

2. The detection method according to claim 1, characterized in that: The conductive solution is a potassium chloride solution or a sodium chloride solution.

3. The detection method according to claim 1, characterized in that: In step 1, the temperature of the conductive solution also needs to be controlled so that it is between 37°C and 40°C.

4. The detection method according to claim 1, characterized in that: Step 1 further includes preparing a sufficient amount of conductive solution in the detection device and circulating the conductive solution.

5. The detection method according to claim 1, characterized in that: Step 2 specifically involves moving the electrode array so that each dielectric sheet is sequentially positioned to correspond with the conductive sheet.

6. The detection method according to claim 1, characterized in that: The electrical parameters of the dielectric sheet in step 3 include capacitance and resistance.

7. The detection method according to claim 1, characterized in that: The detection device includes a mounting base, a detection seat fixed on the mounting base, and an electrode assembly. The detection seat has a test tank for containing a conductive solution. The electrode assembly has a conductive sheet, which is fixed to the bottom of the detection seat and in contact with the conductive solution. The electrode array is arranged above the test tank with the dielectric sheet facing downwards, and the dielectric sheet is in contact with the conductive solution.

8. The detection method according to claim 7, characterized in that: The mounting base includes a base and a top plate fixed on the base. The base is provided with a reservoir for storing the conductive solution and a water pump for introducing the conductive solution in the reservoir into the test tank.

9. The detection method according to claim 8, characterized in that: The mounting base is equipped with an external storage pipe that is fixed on the top plate and, under the action of the water pump, guides the conductive solution from the storage tank into the test tank.

10. The detection method according to claim 9, characterized in that: The detection base is provided with a liquid storage tank surrounding the test tank. The top side of the test tank is provided with an overflow port for the conductive solution to overflow and flow into the liquid storage tank. The liquid storage tank is connected to the liquid storage pool.

11. The detection method according to claim 9, characterized in that: The external liquid storage tube is equipped with a jacket and a vacuum port for extracting gas from the jacket.

12. The detection method according to claim 10, characterized in that: The mounting base is equipped with a liquid storage tube cap that seals the top opening of the external liquid storage tube.

13. The detection method according to claim 10, characterized in that: The conductive sheet is provided with a first temperature measuring rod, which extends into the test groove.

14. The detection method according to claim 10, characterized in that: The mounting base also includes a cover plate covering the liquid storage tank, and a temperature measuring element is fixed on the bottom side of the cover plate. The temperature measuring element is provided with a second temperature measuring rod extending into the liquid storage tank.

15. The detection method according to claim 9, characterized in that: The detection seat is a multi-hole detection seat, which has multiple independent test tanks and liquid storage tanks. The test tanks are all located in the liquid storage tank. The multi-hole detection seat has a test tank inlet that communicates with each of the test tanks and a liquid storage tank outlet that communicates with the liquid storage tank.

16. The detection method according to claim 15, characterized in that: The electrode assembly has multiple conductive sheets and a circuit board electrically connected to the multiple conductive sheets, and each conductive sheet is individually set for each of the test slots.

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