Detection method for knowing influence of gasket on performance of film sensor

Abstract

The invention discloses a detection method for knowing the influence of a gasket on the performance of a thin film sensor, and relates to the technical field of thin film sensors, and the method comprises the following steps: arranging the gasket made of a specified material on the surface of an ionic thin film of the thin film sensor; and after the gasket is arranged, carrying out performance test on the film sensor, and recording a test result. The operation process is convenient and fast, the influence of different gaskets on the performance of the thin film sensor can be visually known, and therefore a data reference basis is provided for gasket selection of the thin film sensor.

Description

Technical Field

[0001] The present application relates to the technical field of thin film sensors, and in particular to a detection method for understanding the influence of a gasket on the performance of a thin film sensor. Background Art

[0002] The film sensor detects the pressure through the ionization effect generated by the ion film through the electrode, so the contact form between the ion film and the electrode is extremely important. The film itself is relatively fragile, and a gasket needs to be added to prevent the film from being damaged and to ensure that the sensor will not have a large difference due to different contact objects. Different gaskets will cause the contact form between the ion film and the electrode to change. Under the same pressure, different gaskets will cause the sensor to obtain different values. In the past, the performance of the sensor was adjusted more by adjusting the formula of the ion film, which would cause great waste and pollution.

[0003] Therefore, in order to better understand the influence of different gaskets on the performance of thin film sensors, a detection method for understanding the influence of gaskets on the performance of thin film sensors is now provided. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of this application is to provide a detection method for understanding the influence of gaskets on the performance of thin film sensors. The operation process is convenient and fast, and the influence of different gaskets on the performance of thin film sensors can be intuitively understood, thereby providing a data reference for the selection of gaskets for thin film sensors.

[0005] In order to achieve the above objectives, the technical solution adopted by this application is:

[0006] The present application provides a detection method for understanding the influence of a gasket on the performance of a thin film sensor, the detection method comprising the following steps:

[0007] A gasket of a specified material is arranged on the surface of the ion film of the film sensor;

[0008] After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded.

[0009] On the basis of the above technical solution, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, which includes the following steps:

[0010] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0011] On the basis of the above technical solution, after the gasket is set, the performance test of the thin film sensor is performed and the test results are recorded, the method further comprises the following steps:

[0012] Replace gaskets with different materials;

[0013] After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

[0014] On the basis of the above technical solution, after the gasket is replaced, the performance of the thin film sensor is tested and the test results are recorded, the method further includes the following steps:

[0015] Compare the test results of gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin film sensors.

[0016] On the basis of the above technical solution, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, which includes the following steps:

[0017] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0018] On the basis of the above technical solution, the test results of gaskets of different materials are compared to analyze the influence of gaskets of different materials on the performance of thin film sensors, including the following steps:

[0019] Compare the pressure-capacitance curves corresponding to gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

[0020] On the basis of the above technical solution, after the gasket is set, the performance test of the thin film sensor is performed and the test results are recorded, the method further comprises the following steps:

[0021] Replace gaskets of the same material with different thicknesses;

[0022] After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

[0023] On the basis of the above technical solution, after the gasket is replaced, the performance of the thin film sensor is tested and the test results are recorded, the method further includes the following steps:

[0024] Compare the test results of gaskets of the same material with different thicknesses, and analyze the impact of gaskets of the same material with different thicknesses on the performance of thin film sensors.

[0025] On the basis of the above technical solution, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, which includes the following steps:

[0026] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0027] On the basis of the above technical solution, the test results of gaskets of different materials are compared to analyze the influence of gaskets of different materials on the performance of thin film sensors, including the following steps:

[0028] Compare the pressure-capacitance curves corresponding to gaskets of the same material but with different thicknesses, and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

[0029] Compared with the prior art, the advantages of this application are:

[0030] The operation process of the present application is convenient and quick, and can intuitively understand the impact of different gaskets on the performance of thin film sensors, thereby providing a data reference for the selection of gaskets for thin film sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the structure of a detection method for understanding the influence of a gasket on the performance of a thin film sensor according to an embodiment of the present application;

[0033] In the figure:

[0034] 1. Gasket; 2. Ion film; 3. Double-sided tape; 4. FPC. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings.

[0037] The embodiment of the present application provides a detection method for understanding the influence of gaskets on the performance of thin film sensors. The operation process is convenient and fast, and the influence of different gaskets on the performance of thin film sensors can be intuitively understood, thereby providing a data reference basis for the gasket selection of thin film sensors.

[0038] In order to achieve the above technical effects, the overall idea of ​​this application is as follows:

[0039] A detection method for understanding the effect of a gasket on the performance of a thin film sensor, the detection method comprising the following steps:

[0040] S1. Arranging a gasket of a specified material on the surface of the ion film of the thin film sensor;

[0041] S2. After the gasket is set, perform a performance test on the thin film sensor and record the test results.

[0042] The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings.

[0043] See also Figure 1 As shown, the embodiment of the present application provides a detection method for understanding the influence of a gasket on the performance of a thin film sensor, and the detection method comprises the following steps:

[0044] S1. Arranging a gasket of a specified material on the surface of the ion film of the thin film sensor;

[0045] S2. After the gasket is set, perform a performance test on the thin film sensor and record the test results.

[0046] The embodiment of the present application has a convenient and quick operation process, and can intuitively understand the effects of different gaskets on the performance of thin-film sensors, thereby providing a data reference for gasket selection of thin-film sensors.

[0047] It should be noted that the material of the gasket can be 304 stainless steel, ceramic, POM (Polyformaldehyde), acrylic, rubber and silicone.

[0048] On the basis of the above technical solution, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, which includes the following steps:

[0049] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0050] Furthermore, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps:

[0051] Replace gaskets with different materials;

[0052] After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

[0053] Furthermore, after the gasket is replaced, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps:

[0054] Compare the test results of gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin film sensors.

[0055] Further, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, including the following steps:

[0056] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0057] Further, comparing the test results of gaskets of different materials and analyzing the influence of gaskets of different materials on the performance of thin film sensors, the following steps are included:

[0058] Compare the pressure-capacitance curves corresponding to gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

[0059] Furthermore, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps:

[0060] Replace gaskets of the same material with different thicknesses;

[0061] After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

[0062] Furthermore, after the gasket is replaced, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps:

[0063] Compare the test results of gaskets of the same material with different thicknesses, and analyze the impact of gaskets of the same material with different thicknesses on the performance of thin film sensors.

[0064] Further, after the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, including the following steps:

[0065] The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

[0066] Further, comparing the test results of gaskets of different materials and analyzing the influence of gaskets of different materials on the performance of thin film sensors, the following steps are included:

[0067] Compare the pressure-capacitance curves corresponding to gaskets of the same material but with different thicknesses, and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

[0068] Based on the technical solution of the embodiment of the present application, during the specific implementation, the situation is as follows:

[0069] Test situation:

[0070] The ion film and FPC are bonded with double-sided tape, and the thickness of the double-sided tape is 0.2mm. Place the gasket on the ion film. First press quickly 20 times to reach 45N, then press slowly for 40s, and collect the pressure capacitance curve. The pressure capacitance curve is used to analyze the impact of protective layers of different materials. Fixed thickness and test with the same shape.

[0071] Test Materials:

[0072] 304 stainless steel, ceramic, POM, acrylic, rubber, silicone.

[0073] Test results:

[0074] The performance of 304 stainless steel is close to that of ceramics. The linearity of the pressure capacitance curve of the sensor is very good. When the capacitance reaches 45N, the capacitance value reaches about 1000. (The larger the capacitance value, the better the accuracy of the sensor, but the maximum value should be controlled within 3000)

[0075] The results of POM and acrylic are similar. The linearity of the pressure capacitance curve of the sensor has changed. At the beginning of the pressure release, the capacitance value drops rapidly, which is presumably related to the poor rebound performance of the material. The greater the difference between the pressure release curve and the pressure applied curve, the worse the accuracy of the sensor. However, when it reaches 45N, the capacitance value reaches about 1500.

[0076] The results for rubber and silicone are similar. The difference between the curves of applied pressure and released pressure is very small, and the capacitance value is around 2500.

[0077] In summary,

[0078] As for protective films, except for rubber and silicone, which may have poor puncture resistance, all other materials can protect ion films well.

[0079] From the perspective of sensor performance, the smaller the elastic modulus of the protective layer, the more sensitive the sensor is, but the measuring range will be reduced, and the protective layer must be made of a high-rebound material.

[0080] However, taking rubber as an example, due to its small modulus, the deformation of the rubber itself will be very large when it is subjected to pressure. Although this may be the reason for the higher sensitivity of the sensor, it also means that the thickness of the rubber itself is also very important.

[0081] By comparing 4 thicknesses, 0.5mm, 1mm, 2mm and 3mm, we found that the larger the thickness, the smaller the capacitance value. However, the overall linearity and consistency of pressure application and release are very good.

[0082] It should be noted that in the detection method described in the examples of this application:

[0083] Experiments were conducted using different gaskets placed on the same sensor. The thickness and shape of the gaskets were consistent, and their range, accuracy, and response time were compared.

[0084] The pressure is increased and released slowly, and quickly, respectively. The accuracy is judged by analyzing the numerical consistency of the pressure increase and pressure release. The pressure range is measured by the numerical value fed back during the pressure increase.

[0085] The response time is measured by quickly increasing and releasing the pressure. The reaction time required is measured by controlling the cycle of pressure application and pressure release.

[0086] Metal gasket: A gasket made of 304 stainless steel. The sensor responds quickly and can detect impacts, but it is basically undetectable when the pressure is small. The accuracy of measuring pressure is poor.

[0087] Plastic gasket: The gasket made of POM has a lower response speed of the sensor and a smaller peak impact force, but is more sensitive to pressure and has improved accuracy.

[0088] Rubber gasket: With the gasket made of silicone rubber, the sensor becomes insensitive to impact force, and the peak value of impact force is very close to the pressure value. But it has very good accuracy for static force.

[0089] However, except for the good flexibility of the rubber gasket, plastic and metal have a great impact on the flexibility of the flexible sensor.

[0090] As for rubber gaskets, previous conclusions were drawn based on the material, but different gasket shapes will still have a significant impact. As the deformation progresses, the contact area between the ion membrane and the electrode will also change.

[0091] When using a rubber gasket, whether it is convex or concave relative to the sensor side will also cause different effects, as follows:

[0092] When the rubber gasket is convex on the sensor side, the pressure curve of the sensor changes, and the sensitivity of the sensor is enhanced when the pressure value is low;

[0093] When the rubber gasket is recessed on the sensor side, the range is improved, but the accuracy is reduced.

[0094] The effect of the gasket shape is complex, and the pressure and area received by the sensor are changed.

[0095] In summary, the technical solution of the embodiment of the present application uses common materials as gaskets on sensors, analyzes the performance differences brought by gaskets, and discusses the advantages and disadvantages, lists usage scenarios, and explores whether the performance of the sensor can be changed by changing the type of gaskets;

[0096] The sensor performance can be adjusted simply by changing the gasket, which improves the utilization rate of the ion film, avoids waste and reduces pollution, and provides technical support for improving the performance of flexible sensors in the future.

[0097] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0098] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0099] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A detection method for understanding the effect of a gasket on the performance of a thin film sensor, characterized in that: The detection method comprises the following steps: A gasket of a specified material is arranged on the surface of the ion film of the thin film sensor; After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded.

2. The detection method for understanding the influence of the gasket on the performance of the thin film sensor according to claim 1, characterized in that: After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, including the following steps: The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

3. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 1, characterized in that: After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps: Replace gaskets with different materials; After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

4. The detection method for understanding the influence of the gasket on the performance of the thin film sensor according to claim 3, characterized in that: After the gasket is replaced, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps: Compare the test results of gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin film sensors.

5. The detection method for understanding the influence of the gasket on the performance of the thin film sensor according to claim 4, characterized in that: After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, including the following steps: The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

6. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 4, characterized in that: Comparing the test results of gaskets of different materials and analyzing the influence of gaskets of different materials on the performance of thin film sensors, the following steps are included: Compare the pressure-capacitance curves corresponding to gaskets of different materials and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

7. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 1, characterized in that: After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps: Replace gaskets of the same material with different thicknesses; After the gasket is replaced, a performance test is performed on the thin film sensor and the test results are recorded.

8. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 7, characterized in that: After the gasket is replaced, the thin film sensor is subjected to a performance test and the test results are recorded, the method further comprises the following steps: Compare the test results of gaskets of the same material with different thicknesses, and analyze the impact of gaskets of the same material with different thicknesses on the performance of thin film sensors.

9. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 8, characterized in that: After the gasket is set, the thin film sensor is subjected to a performance test and the test results are recorded, including the following steps: The thin film sensor is pressed according to a preset fast pressing frequency, a corresponding fast pressing intensity and a corresponding number of fast pressings, and then according to a preset slow pressing frequency, a corresponding slow pressing intensity and a corresponding number of slow pressings, and a corresponding pressure-capacitance curve is obtained.

10. The detection method for understanding the influence of a gasket on the performance of a thin film sensor according to claim 9, characterized in that: Comparing the test results of gaskets of different materials and analyzing the influence of gaskets of different materials on the performance of thin film sensors, the following steps are included: Compare the pressure-capacitance curves corresponding to gaskets of the same material but with different thicknesses, and analyze the impact of gaskets of different materials on the performance of thin-film sensors.

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