High-precision curved surface pressure measuring device

Abstract

The invention discloses a high-precision curved surface pressure measuring device, and relates to the technical field of wearable sensors, and the device comprises a head sleeve body and an elastic fixing band. The headgear body comprises: a PDMS lower substrate; the PET lower electrode array and the PET upper electrode array are sequentially arranged on the top surface of the PDMS lower substrate from bottom to top; the plurality of ionic gel films are arranged between the PET lower electrode array and the PET upper electrode array at intervals; the sheet springs are arranged on the top surface of the PET upper electrode array at intervals; the steel sheet is arranged on the top surface of the sheet-shaped spring; the PDMS upper substrate is arranged on the top surface of the PDMS lower substrate; the elastic fixing band comprises an elastic band; and the compression bolt structures are arranged on the top surface of the elastic belt at intervals. Through the synergistic effect of material optimization, structural design and a prestress elimination mechanism, the prestress generated in the measurement process is effectively reduced, the measurement accuracy and reliability are remarkably improved, and measurement deviation caused by the prestress is avoided.

Description

Technical Field

[0001] This application relates to the technical field of wearable sensors, and particularly to a high-precision curved surface pressure measurement device. Background Art

[0002] As an important pressure monitoring tool, flexible pressure headgear is widely used in fields such as biomedicine, sports science, and aerospace. Its main function is to fit the surface of the human body or other objects to monitor the pressure distribution in real time, providing data support for relevant research and applications. However, there are some problems with existing flexible pressure headgear during actual use. Due to the elastic properties of the material itself and the incomplete fit between the headgear and the measurement site, traditional flexible pressure headgear often introduces prestress during the measurement process. This prestress can lead to deviations in the measurement results, reducing the accuracy and reliability of the measurement. In addition, the measurement range of flexible pressure headgear in the prior art is limited, making it difficult to meet the high-precision measurement requirements in complex environments. Therefore, developing an improved method that can effectively reduce prestress and expand the measurement range is of great significance for improving the performance of flexible pressure headgear.

[0003] To meet the actual needs, a high-precision curved surface pressure measurement device is provided herein. Summary of the Invention

[0004] Aiming at the defects existing in the prior art, the purpose of this application is to provide a high-precision curved surface pressure measurement device. Through the synergistic effect of material optimization, structural design, and prestress elimination mechanism, the prestress generated by the flexible pressure headgear during the measurement process is effectively reduced, significantly improving the accuracy and reliability of the measurement and avoiding measurement deviations caused by prestress.

[0005] To achieve the above object, the technical solution adopted in this application is as follows:

[0006] This application provides a high-precision curved surface pressure measurement device, and the high-precision curved surface pressure measurement device includes a headgear body and an elastic fixing band;

[0007] The headgear body includes:

[0008] A PDMS lower substrate;

[0009] A PET lower electrode array and a PET upper electrode array sequentially arranged on the top surface of the PDMS lower substrate from bottom to top;

[0010] Multiple ion gel films arranged at intervals between the PET lower electrode array and the PET upper electrode array;

[0011] A plurality of sheet springs are arranged at intervals on the top surface of the PET upper electrode array. The number of the sheet springs is the same as that of the ion gel films and they correspond one by one.

[0012] A steel sheet arranged on the top surface of the sheet spring;

[0013] A PDMS upper substrate arranged on the top surface of the PDMS lower substrate;

[0014] The elastic fixing band includes:

[0015] An elastic band;

[0016] A plurality of pressing bolt structures arranged at intervals on the top surface of the elastic band; wherein,

[0017] The PET lower electrode array, the ion gel film, the PET upper electrode array, the sheet spring and the steel sheet are located between the PDMS lower substrate and the PDMS upper substrate;

[0018] The number of the pressing bolt structures is the same as that of the sheet springs and they correspond one by one.

[0019] Based on the above technical solution, the PET lower electrode array and the PET upper electrode array are in a fishbone structure.

[0020] Based on the above technical solution, a plurality of headband end velcros are arranged at intervals on the top surface of the PDMS upper substrate;

[0021] A plurality of elastic band end velcros are arranged at intervals on the bottom surface of the elastic band;

[0022] The number of the headband end velcros is the same as that of the sheet springs and they correspond one by one;

[0023] The number of the headband end velcros is the same as that of the elastic band end velcros and they correspond one by one;

[0024] The number of the pressing bolt structures is the same as that of the sheet springs and they correspond one by one

[0025] The elastic band is detachably connected to the plurality of headband end velcros on the top surface of the PDMS upper substrate through the plurality of elastic band end velcros.

[0026] Based on the above technical solution, the plurality of headband end velcros are arranged in a fishbone pattern.

[0027] Based on the above technical solution, the plurality of elastic band end velcros are arranged in a fishbone pattern.

[0028] On the basis of the above technical solution, when the elastic band is connected to the multiple headgear end Velcros on the top surface of the PDMS upper substrate through the multiple elastic band end Velcros, the pressing bolt structure is aligned with the corresponding sheet spring and the corresponding ion gel film.

[0029] On the basis of the above technical solution, the elastic band has a fishbone structure.

[0030] On the basis of the above technical solution, the pressing bolt structure includes:

[0031] A guide rail with a cylindrical structure, which is arranged on the top surface of the elastic band;

[0032] A pressing bolt arranged on the inner wall of the guide rail through a threaded structure; wherein,

[0033] The pressing bolt is configured to be able to rise and fall within the guide rail, and when the pressing bolt descends to the lowest height within the guide rail, the lowermost end of the pressing bolt is lower than the lowermost end of the guide rail.

[0034] Compared with the prior art, the advantages of the present application are as follows:

[0035] Through the synergistic effect of material optimization, structural design, and prestress elimination mechanism, the present application effectively reduces the prestress generated by the flexible pressure headgear during the measurement process, significantly improves the accuracy and reliability of the measurement, and avoids measurement deviation caused by prestress. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 It is a schematic diagram of the hierarchical structure of the headgear body in the high-precision curved surface pressure measurement device according to the embodiment of the present application;

[0038] Figure 2 It is a schematic diagram of the structure of the high-precision curved surface pressure measurement device according to the embodiment of the present application;

[0039] Figure 3 It is a schematic diagram of the structure of the pressing bolt structure in the high-precision curved surface pressure measurement device according to the embodiment of the present application;

[0040] Figure 4 It is a schematic diagram of the structure of the PDMS upper substrate and the headgear end Velcro in the high-precision curved surface pressure measurement device according to the embodiment of the present application;

[0041] Figure 5 The assembly side view of the headgear body and the elastic fixing band in the high-precision curved surface pressure measuring device of the embodiment of the present application;

[0042] Figure 6 The schematic diagram of the use of the high-precision curved surface pressure measuring device of the embodiment of the present application;

[0043] In the figure:

[0044] A, headgear body; B, elastic fixing band; C, wire; D, data transmission module; 1, PDMS lower substrate; 2, PET lower electrode array; 3, ionic gel film; 4, PET upper electrode array; 5, sheet spring; 6, steel sheet; 7, PDMS upper substrate; 70, headgear end magic tape; 8, elastic band; 80, elastic band end magic tape; 9, compression bolt structure; 90, guide rail; 91, compression bolt. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0046] The following further elaborates on the embodiments of the present application with reference to the accompanying drawings.

[0047] The embodiment of the present application provides a high-precision curved surface pressure measuring device. Through the synergistic effect of material optimization, structural design and prestress elimination mechanism, the prestress generated by the flexible pressure headgear during the measurement process is effectively reduced, the measurement accuracy and reliability are significantly improved, and the measurement deviation caused by prestress is avoided.

[0048] To achieve the above technical effects, the general idea of the present application is as follows:

[0049] A high-precision curved surface pressure measuring device, which includes a headgear body A and an elastic fixing band B;

[0050] The headgear body A includes:

[0051] PDMS lower substrate 1;

[0052] The PET lower electrode array 2 and the PET upper electrode array 4 are sequentially arranged on the top surface of the PDMS lower substrate 1 from bottom to top;

[0053] A plurality of ion gel films 3 are arranged at intervals between the PET lower electrode array 2 and the PET upper electrode array 4;

[0054] A plurality of sheet springs 5 are arranged at intervals on the top surface of the PET upper electrode array 4. The number of the sheet springs 5 is the same as that of the ion gel films 3 and they correspond to each other one by one;

[0055] A steel sheet 6 is arranged on the top surface of the sheet spring 5;

[0056] A PDMS upper substrate 7 is arranged on the top surface of the PDMS lower substrate 1;

[0057] The elastic fixing band B includes:

[0058] An elastic band 8;

[0059] A plurality of pressing bolt structures 9 are arranged at intervals on the top surface of the elastic band 8; wherein,

[0060] The PET lower electrode array 2, the ion gel film 3, the PET upper electrode array 4, the sheet spring 5 and the steel sheet 6 are located between the PDMS lower substrate 1 and the PDMS upper substrate 7;

[0061] The number of the pressing bolt structures 9 is the same as that of the sheet springs 5 and they correspond to each other one by one.

[0062] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0063] See Figures 1 to 6 As shown, the embodiment of the present application provides a high-precision curved surface pressure measuring device, which includes a headgear body A and an elastic fixing band B;

[0064] The headgear body A includes:

[0065] A PDMS lower substrate 1;

[0066] A PET lower electrode array 2 and a PET upper electrode array 4 which are sequentially arranged on the top surface of the PDMS lower substrate 1 from bottom to top;

[0067] A plurality of ion gel films 3 are arranged at intervals between the PET lower electrode array 2 and the PET upper electrode array 4;

[0068] A plurality of sheet springs 5 are arranged at intervals on the top surface of the PET upper electrode array 4. The number of the sheet springs 5 is the same as that of the ion gel films 3 and they correspond to each other one by one;

[0069] A steel sheet 6 is arranged on the top surface of the sheet spring 5;

[0070] The PDMS upper substrate 7 disposed on the top surface of the PDMS lower substrate 1;

[0071] The elastic fixing band B includes:

[0072] The elastic band 8;

[0073] A plurality of pressing bolt structures 9 spacedly arranged on the top surface of the elastic band 8; wherein,

[0074] The PET lower electrode array 2, the ion gel film 3, the PET upper electrode array 4, the leaf spring 5 and the steel sheet 6 are located between the PDMS lower substrate 1 and the PDMS upper substrate 7;

[0075] The number of the pressing bolt structures 9 is the same as the number of the leaf springs 5 and they are in one-to-one correspondence.

[0076] Specifically, PDMS is Polydimethylsiloxane, polydimethylsiloxane;

[0077] PET, polyethylene terephthalate.

[0078] It should be noted that in the existing flexible pressure headgear measurement technology, due to factors such as the elastic characteristics of materials, incomplete fitting between the headgear and the measurement site, and the diversity of measurement sites, traditional flexible pressure headgear often introduces prestress during use. This prestress will cause the measurement result to deviate from the actual pressure value, thus significantly reducing the accuracy and reliability of the measurement. Therefore, the embodiments of the present application aim to effectively reduce the prestress generated by the flexible pressure headgear during the measurement process through comprehensive improvements in material optimization, structural design, and prestress elimination mechanisms, ensuring high precision and high reliability of the measurement results, so as to provide more accurate technical support for pressure monitoring in fields such as biomedicine, sports science, and aerospace.

[0079] Through comprehensive improvements in material optimization, structural design, and prestress elimination mechanisms, the prestress problem existing in the flexible pressure headgear during the measurement process is effectively solved, and the measurement range is extended. Specifically, materials with low elastic modulus and high ductility are selected as the headgear base. By optimizing the material properties, the influence on the measurement results is reduced, and at the same time, the flexibility and adaptability of the headgear are improved, enabling it to better fit the measurement site. In terms of structural design, the combination of leaf springs and sensors is introduced. The initial stress of the sensors is adjusted through the prestress elimination mechanism to ensure that the initial states of each sensor point are consistent. In addition, an elastic band and a compression bolt structure are designed. The elastic band provides an initial pre-tightening force to achieve the initial fitting of the headgear and the measurement site, while the compression bolt structure is used to fine-tune the pre-tightening force of each sensor point to further reduce the prestress caused by poor fitting. The prestress elimination mechanism precisely adjusts the initial pressure of each sensor point through the application of elastic elements and the real-time feedback of commercial pressure sensors to ensure that the prestress of each point is consistent during the measurement process. Through the above comprehensive technical solutions, the measurement accuracy and reliability of the flexible pressure headgear are significantly improved, and at the same time, its measurement range is extended, enabling it to meet the high-precision measurement requirements in complex environments.

[0080] Further, the PET lower electrode array 2 and the PET upper electrode array 4 are in a fishbone shape structure.

[0081] Further, a plurality of headgear end magic tapes 70 are spacedly arranged on the top surface of the PDMS upper base 7;

[0082] A plurality of elastic band end magic tapes 80 are spacedly arranged on the bottom surface of the elastic band 8;

[0083] The number of the headgear end magic tapes 70 is the same as the number of the leaf springs 5 and they correspond one by one;

[0084] The number of the headgear end magic tapes 70 is the same as the number of the elastic band end magic tapes 80 and they correspond one by one;

[0085] The number of the compression bolt structures 9 is the same as the number of the leaf springs 5 and they correspond one by one

[0086] The elastic band 8 is detachably connected to the plurality of headgear end magic tapes 70 on the top surface of the PDMS upper base 7 through the plurality of elastic band end magic tapes 80.

[0087] Further, the plurality of headgear end magic tapes 70 are arranged in a fishbone shape.

[0088] Further, the plurality of elastic band end magic tapes 80 are arranged in a fishbone shape.

[0089] Further, when the elastic band 8 is connected to the plurality of headband end Velcros 70 on the top surface of the PDMS upper substrate 7 through the plurality of elastic band end Velcros 80, the pressing bolt structure 9 is aligned with the corresponding sheet spring 5 and the corresponding ion gel film 3.

[0090] Further, the elastic band 8 has a fishbone structure.

[0091] Further, the pressing bolt structure 9 includes:

[0092] A guide rail 90 with a cylindrical structure, which is arranged on the top surface of the elastic band 8;

[0093] A pressing bolt 91 arranged on the inner wall of the guide rail 90 through a threaded structure; wherein,

[0094] The pressing bolt 91 is configured to be able to rise and fall within the guide rail 90, and when the pressing bolt 91 descends to the lowest height within the guide rail 90, the lowermost end of the pressing bolt 91 is lower than the lowermost end of the guide rail 90.

[0095] Based on the technical solution of the embodiment of the present application,

[0096] First, optimize the flexible pressure headband material:

[0097] For the headband body A, PDMS with a low elastic modulus and high ductility is selected as the main material of the headband to reduce the influence of the elasticity of the material itself on the measurement results. By changing the ratio of PDMS, its elastic modulus and Poisson's ratio are adjusted, so as to regulate its stretchability. It is prepared with a base liquid: curing liquid = 15:1. PDMS with this ratio has better flexibility, can better adapt to the shape change of the measurement part, and reduce the prestress caused by the elasticity of the material.

[0098] Second, the structural design of the headband:

[0099] Combination of the sheet spring and the sensor:

[0100] The sensor is composed of the PET lower electrode array 2, the ion gel film 3 and the PET upper electrode array 4. An ion gel film 3 cooperates with the PET lower electrode array 2 and the PET upper electrode array 4 to form a sensor point. A sheet spring 5 is added between the steel sheet 6 and the PET upper electrode array 4, which helps to adjust the consistency of the initial states of the sensors. The sheet spring 5 is compressed by the pressing bolt structure 9 so that the initial stresses at each point are the same, thereby improving the measurement accuracy.

[0101] Third, the elastic band and the threaded structure design:

[0102] Elastic band fixation: An elastic fixation band B is designed on the periphery of the headgear body A. The elastic fixation band B is fixed to the human head through a Velcro structure. The elasticity of the elastic fixation band B can provide a certain pre-tightening force, enabling the headgear body A to initially fit the head, while avoiding additional prestress caused by being too tight.

[0103] Thread structure adjustment: On the outside of the headgear body A, each sensor point corresponds to a compression bolt structure 9. The compression bolt structure 9 consists of a guide rail 90 and a compression bolt 91. The compression bolt 91 is connected to the guide rail 90 of the sensor point. By adjusting the compression bolt 91, the pre-tightening force of each sensor point can be finely adjusted, enabling the sensor to fit the measurement part more closely and further reducing the prestress caused by poor fitting.

[0104] Fourth, the composition of the flexible pressure headgear:

[0105] The flexible pressure headgear is composed of a PDMS substrate, positioning steel sheets, flexible PET electrodes, pressure film materials, elastic bands, thread adjustment structures, and pre-tightening mechanisms.

[0106] Fifth, the material of the sensor electrode substrate:

[0107] PET material with a thickness of 50 - 200um is used. The PET material has high transparency, good observability, good impact resistance, and is not easy to break. This material can provide good physical support for the sensor without affecting the performance and measurement results of the sensor.

[0108] Sixth, the function of the steel sheet:

[0109] The steel sheets correspond one-to-one with the pressure sensor points of the flexible electrodes and play a role of rigid support. When the pressure of the pressure film is transmitted to the electrode force contact points, due to the support of the steel sheets, the electrodes can more accurately feedback the magnitude of the pressure, improving the measurement accuracy and reliability.

[0110] Seventh, the flexible electrode and the pressure film material:

[0111] Flexible electrode: The flexible electrode can fit the head, and pressure contact points are evenly distributed on the electrode, which can sense the magnitude of the force applied. This design can ensure the uniform response of the sensor to pressure and improve the measurement accuracy.

[0112] Pressure film material: An electret film pressure material is used. PVDF-HFP is used as the film substrate, the ionic liquid is EMIM-TFSI, and an ionic film is prepared using acetone as the solvent. When the film is compressed, the internal ions shift, causing the capacitance value of the sensor to change, thereby corresponding to the magnitude of the force for pressure detection.

[0113] Ninth, the working principle of the elastic band and the compression bolt structure:

[0114] Elastic band: The elastic band enables the headgear to be stably fixed on the head. The pre-tightening force of the elastic band can be adjusted according to different head shapes and sizes to ensure the initial fit of the headgear to the head.

[0115] Compression bolt structure: The compression bolt structure 9 at each sensor point can be finely adjusted through the compression bolt 91, enabling the sensor point to fit more closely to the measurement part. This local adjustment method can further reduce the prestress caused by poor fit, while improving the accuracy and reliability of the measurement. Through the combination of the elastic band and the compression bolt structure, the headgear can better adapt to measurement parts of different shapes and sizes, achieving precise pressure measurement.

[0116] Fixing of the elastic band: The compression bolt structure on the elastic band is fixed around the sensor through Velcro corresponding to the sensor one by one to maintain the relative position. One side of the Velcro is fixed on the headgear, and the other side can be adjusted according to needs to adapt to different head sizes and shapes.

[0117] Adjustment of the threaded structure: The threaded structure at each sensor point is finely adjusted by rotating the nut. One end of the threaded rod is a flat surface that presses against the steel sheet, and the two flat surfaces are parallel to each other, ensuring that the pressure of the threaded rod on the sensor is a positive pressure. The other end is adjusted by rotating the nut. By rotating the nut, the pre-tightening force at each sensor point can be precisely controlled to make it fit more closely to the measurement part, thereby reducing the prestress caused by poor fit and improving the accuracy and reliability of the measurement.

[0118] The technical solution of the embodiment of the present application has the following advantages:

[0119] First, improve the measurement accuracy and reliability:

[0120] 1. Using PDMS material with low elastic modulus and high ductility optimizes the flexibility and adaptability of the headgear, enabling it to better fit the measurement part.

[0121] 2. The combination of the leaf spring and the sensor and the application of the prestress elimination mechanism ensure the consistency of the initial stress at each sensor point, improving the uniformity and accuracy of the measurement.

[0122] 3. The design of the elastic band and the compression bolt structure enables the headgear to better adapt to measurement parts of different shapes and sizes, further reducing the prestress caused by poor fit and improving the accuracy and reliability of the measurement.

[0123] Second, expand the measurement range:

[0124] By optimizing material properties and structural design, the present invention significantly expands the measurement range of the flexible pressure headgear. This improvement enables it to meet the high-precision measurement requirements in complex environments and is applicable to a wider range of application scenarios.

[0125] Thirdly, enhancing adaptability and versatility:

[0126] The design of the elastic band and the compression bolt structure enables the headgear to better adapt to measurement parts of different shapes and sizes, improving the versatility and flexibility of measurement. This design is not only applicable to pressure monitoring in the biomedical field but also widely used in fields such as sports science and aerospace.

[0127] Fourthly, improving measurement efficiency:

[0128] The compression bolt structure simplifies the preparation work before measurement and improves measurement efficiency. By precisely adjusting the pre-tightening force of the sensor points, the measurement personnel can quickly complete the installation and debugging of the equipment, saving time and effort.

[0129] Fifthly, enhancing the user experience:

[0130] The use of the elastic band and the fine-tuning function of the compression bolt structure make the headgear more comfortable to wear, reducing the discomfort caused by the equipment being too tight or too loose. This design not only improves the user experience but also ensures the stability and reliability of the measurement process.

[0131] Sixthly, broad application prospects:

[0132] It is applicable to pressure monitoring and analysis in fields such as biomedicine, sports science, and aerospace, with broad application prospects. By reducing the pre-stress and expanding the measurement range, the present invention provides strong support for research and applications in related fields and is expected to promote the development and innovation of related technologies.

[0133] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is 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 thus cannot be construed as a limitation of the present application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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 specific circumstances.

[0134] 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 actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0135] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious 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 these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A high-precision curved surface pressure measurement device, characterized in that: The high-precision curved surface pressure measuring device comprises a headgear body (A) and an elastic fixing belt (B); The headgear body (A) comprises: PDMS lower substrate (1); A PET lower electrode array (2) and a PET upper electrode array (4) are sequentially arranged on the top surface of the PDMS lower substrate (1) from bottom to top; A plurality of ion gel films (3) arranged at intervals between the PET lower electrode array (2) and the PET upper electrode array (4); A plurality of leaf springs (5) arranged at intervals on the top surface of the PET upper electrode array (4), wherein the number of the leaf springs (5) is consistent with the number of the ion gel films (3) and corresponds one to one; A steel sheet (6) arranged on the top surface of the leaf spring (5); A PDMS upper substrate (7) disposed on the top surface of the PDMS lower substrate (1); The elastic fixing belt (B) comprises: Elastic band (8); A plurality of clamping bolt structures (9) are arranged at intervals on the top surface of the elastic band (8); wherein: The PET lower electrode array (2), the ion gel film (3), the PET upper electrode array (4), the leaf spring (5) and the steel sheet (6) are located between the PDMS lower substrate (1) and the PDMS upper substrate (7); The number of the clamping bolt structures (9) is consistent with the number of the leaf springs (5), and they correspond one to one.

2. The high-precision curved surface pressure measuring device according to claim 1, characterized in that: The PET lower electrode array (2) and the PET upper electrode array (4) are herringbone structures.

3. The high-precision curved surface pressure measuring device according to claim 1, characterized in that: The top surface of the PDMS upper substrate (7) is provided with a plurality of headgear end Velcro strips (70) at intervals; The bottom surface of the elastic band (8) is provided with a plurality of elastic band end Velcro strips (80) at intervals; The number of the headgear end Velcro (70) is consistent with the number of the leaf springs (5), and they correspond one to one; The number of the Velcro strips (70) at the headgear end is consistent with the number of the Velcro strips (80) at the elastic band end, and they correspond one to one; The number of the clamping bolt structures (9) is consistent with the number of the leaf springs (5), and they correspond one to one. The elastic band (8) is detachably connected to the plurality of headgear end Velcros (70) on the top surface of the PDMS upper substrate (7) via the plurality of elastic band end Velcros (80).

4. The high-precision curved surface pressure measuring device according to claim 3, characterized in that: The plurality of headgear end Velcro strips (70) are arranged in a herringbone shape.

5. The high-precision curved surface pressure measuring device according to claim 3, characterized in that: The plurality of elastic band end Velcros (80) are arranged in a herringbone shape.

6. The high-precision curved surface pressure measuring device according to claim 3, characterized in that: When the elastic band (8) is connected to the multiple headgear end Velcros (70) on the top surface of the PDMS upper substrate (7) through the multiple elastic band end Velcros (80), the clamping bolt structure (9) faces the corresponding leaf spring (5) and the corresponding ion gel film (3).

7. The high-precision curved surface pressure measuring device according to claim 1, characterized in that: The elastic band (8) is a fishbone-shaped structure.

8. The high-precision curved surface pressure measurement device according to claim 1, characterized in that: The clamping bolt structure (9) comprises: A guide rail (90) of a cylindrical structure, wherein the guide rail (90) is arranged on the top surface of the elastic band (8); A clamping bolt (91) is arranged on the inner wall of the guide rail (90) through a threaded structure; wherein: The clamping bolt (91) is configured to be able to rise and fall in the guide rail (90), and when the clamping bolt (91) is lowered to the lowest height in the guide rail (90), the lowermost end of the clamping bolt (91) is lower than the lowermost end of the guide rail (90).

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