Underwater curtain stress measurement system and method based on fabric sensor

Abstract

The invention provides an underwater curtain stress measurement system and method based on a fabric sensor, and the system comprises the fabric sensor which is fixed at a position where the stress of the surface of an underwater curtain needs to be measured, and comprises a microstructure sensing layer and electrodes disposed at the two sides of the microstructure sensing layer; the waterproof assemblies cover the two faces of the fabric sensor respectively and are fixedly connected with the underwater curtain; the data collecting and processing system comprises a data line and a data collector, one end of the data line is connected with the two electrodes of the fabric sensor, and the other end of the data line is connected with the data collector. According to the application, the stress change of different positions of the whole curtain can be monitored in real time, and the influence on water flow is reduced.

Description

Technical Field

[0001] This application relates to the field of underwater force measurement and testing, and more specifically, to an underwater curtain force measurement system and method based on a fabric sensor. Background Technology

[0002] Underwater curtains, as an important type of flexible hydraulic structure, are widely used in many engineering fields due to their ease of deployment, recyclability, and relatively low cost. For example, in environmental dredging, underwater curtains are often used to contain sediment and prevent its spread, thus protecting the surrounding aquatic ecosystem, in order to control the environmental impact of suspended sediment generated during dredging and land reclamation projects. In reservoirs, waterproof curtains are used for vertical stratification or horizontal partitioning to control water temperature, water quality, and algae distribution; or to separate different areas to reduce mutual influence between water bodies.

[0003] Before engineering applications, laboratory tests are generally required to determine the stress on the curtain under different conditions. Measuring the structure is crucial for evaluating the safety and stability of the curtain structure, optimizing its design parameters, and predicting its enclosure effect. Traditional methods typically use tensile test gauges. However, based on experimental experience, traditional tensile test gauges have limitations: they can only be installed at the edge of the curtain and cannot measure the stress in the central area; furthermore, their size and weight can affect water flow when installed on the side.

[0004] A search revealed the paper "Study on the Stress of Water-Retaining Curtain for Low-Temperature Water Discharge Treatment in Deep-Water Reservoirs" (Sheng Chuanming et al., Journal of Hydraulic Engineering, Vol. 47, No. 12, 2016). This paper uses a combination of numerical simulation and model testing to study the changes in the reservoir flow field and temperature field, as well as the stress on the curtain, after its implementation. Five force sensors were used: three were positioned in front of the curtain, one end connected to the bottom of the curtain and the other fixed to the upstream support beam; the other two were positioned on the pillars on the left and right sides of the curtain to measure the force exerted by the water flow on the curtain. This method is generally only suitable for measuring local forces at the curtain's boundaries and cannot directly measure the forces in the middle of the curtain. In practical problems, the forces in the middle of the curtain often differ from those at the boundaries, especially in complex structures where the force distribution is uneven, and larger forces may occur in the middle of the curtain. Furthermore, due to the size of the sensors, their placement on the sides of the curtain can affect the water flow.

[0005] Therefore, there is an urgent need for a new system for measuring the stress on underwater curtains to solve the above problems and promote the technological application of underwater curtains. Summary of the Invention

[0006] In view of one of the deficiencies in the prior art, the purpose of this application is to provide an underwater curtain force measurement system and method based on fabric sensors.

[0007] A first aspect of this application provides an underwater curtain force measurement system based on a fabric sensor, comprising: A fabric sensor, which is fixed on the surface of an underwater curtain at the location where force measurement is required, includes a microstructure sensing layer and electrodes disposed on both sides of the microstructure sensing layer. Waterproof components are respectively covered on both sides of the fabric sensor and fixedly connected to the underwater curtain; The data acquisition and processing system includes a data cable and a data acquisition unit. One end of the data cable is connected to the two electrodes of the fabric sensor, and the other end is connected to the data acquisition unit.

[0008] Optionally, the microstructure sensing layer is made of a flexible material with elasticity, so that the microstructure sensing layer can bend or stretch synchronously with the underwater curtain.

[0009] Optionally, the flexible material has pre-formed cracks, which close and are distributed in a unidirectional direction when unloaded, and the cracks expand in a direction perpendicular to the principal stress with bending or tensile force.

[0010] Optionally, the fabric sensor is fixed to the underwater curtain by sewing.

[0011] Optionally, the waterproof component is connected to the underwater curtain by adhesive.

[0012] Optionally, vents are provided between the two layers of the waterproof component.

[0013] Optionally, the connection between the fabric sensor and the data cable uses a sealed interface.

[0014] Optionally, the data cable is provided with a waterproof sleeve that completely covers the data cable.

[0015] Optionally, multiple fabric sensors are installed on the underwater curtain, with each fabric sensor arranged at a different force measurement position.

[0016] A second aspect of this application provides a method for measuring the force on an underwater curtain based on a fabric sensor, implemented using the aforementioned system, comprising: Provide fabric sensors; The fabric sensor is fixed at the preset force measurement position on the underwater curtain, and the waterproof component is covered on both sides of the fabric sensor; one end of the data cable is connected to the two ends of the electrodes of the fabric sensor, and the other end of the data cable is connected to the data acquisition device. Start the data acquisition device, select the sampling frequency, and collect the electrical signals of the fabric sensor in real time; Based on the pre-established calibration relationship, the electrical signal is converted into the tension value at the corresponding position, and the tension variation over time at each force measurement position of the underwater curtain is obtained.

[0017] The underwater curtain stress measurement system based on fabric sensors provided in this application fixes the fabric sensors to the surface of the underwater curtain at the stress measurement location, combines waterproof components to protect the sensors, and connects the fabric sensors to a data acquisition and processing system. This system can monitor stress changes at different locations of the entire curtain in real time and reduce the impact on water flow.

[0018] Other technical effects resulting from the additional features will be further illustrated in the corresponding embodiments. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of an underwater curtain force measurement system based on a fabric sensor, according to an exemplary embodiment. Figure 2 A microscopic image of a crack in a flexible material according to an exemplary embodiment; Figure 3 The calibration results of the resistance-tensile force relationship are shown according to an exemplary embodiment; Figure 4 This is a flowchart illustrating an underwater curtain force measurement method based on a fabric sensor, according to an exemplary embodiment. In the diagram: 1 is the underwater curtain, 2 is the microstructure sensing layer, 3 is the electrode, 4 is the waterproof component, 5 is the data cable, and 6 is the data acquisition device. Detailed Implementation

[0020] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Parts not described in detail in the following embodiments can be implemented using existing technology.

[0021] In existing technologies, underwater curtains are widely used as flexible hydraulic structures in scenarios such as environmental dredging and reservoir zoning. The stress state in the middle of the curtain plays a crucial role in assessing structural stability. However, current observation techniques typically involve placing tension sensors at the curtain's boundaries, making it difficult to monitor the stress in the central area of ​​the underwater curtain. Furthermore, the volume of the tension sensors can disturb the water flow. To address these issues, this application provides an underwater curtain stress measurement system based on fabric sensors to solve these problems.

[0022] Reference Figure 1 As shown in one embodiment of this application, an underwater curtain force measurement system based on a fabric sensor includes a fabric sensor, a waterproof component 4, and a data acquisition and processing system. The fabric sensor is fixed on the surface of the underwater curtain 1 at the position where the force measurement is required, and includes a microstructure sensing layer 2 and electrodes 3 disposed on both sides of the microstructure sensing layer 2. The waterproof component 4 covers both sides of the fabric sensor and is fixedly connected to the underwater curtain 1. The data acquisition and processing system includes a data cable 5 and a data acquisition unit 6. One end of the data cable 5 is connected to the two electrodes 3 of the fabric sensor, and the other end is connected to the data acquisition unit 6.

[0023] Specifically, the underwater curtain 1 refers to a flexible enclosure structure made of materials such as polyester fiber or polyethylene. It can be woven to form a porous, water-permeable substrate to withstand water flow impact and transmit stress deformation. The fabric sensor is a flexible detection component with force-to-electricity conversion function. It is an integrated flexible electronic component that integrates a microstructure sensing layer 2, conductive electrodes, etc. The electrode 3 converts the resistance change of the sensing layer into a measurable electrical signal, which is then transmitted to the data acquisition and processing system. The data acquisition unit 6 collects and processes the electrical signal, converting it into mechanical values. It has a high sampling frequency (50Hz) and measurement accuracy (tensile force accuracy of 0.01N). The sampling frequency can meet the requirements for real-time monitoring of the stress change of the underwater curtain, and the resistance measurement accuracy ensures that it can capture the tiny resistance changes of the fabric sensor. The collected data is transmitted to the data acquisition unit 6 in real time via the data cable 5.

[0024] For example, the underwater curtain 1 is a porous flexible fabric formed by warp weaving of HDPE or PET monofilaments, with a thickness of 0.82 mm, a tensile strength ≥30 kN / m, and a porosity of 15%. The electrode 3 is screen-printed with silver / carbon composite conductive ink, and the surface is coated with an anti-oxidation protective layer. The electrode 3 and the data cable 5 are ultrasonically thermo-welded and the interface is sealed with epoxy resin.

[0025] Traditional force gauges require a fixed bracket at the edge of the screen. The fabric sensor in this application can be directly fixed to the screen, eliminating the disturbance to the water flow caused by the additional structure. The position of the fabric sensor on the underwater screen 1 is determined according to measurement requirements and can be fixed at any position in the edge or middle area. Through a distributed sensor network, it forms an integrated structure with the screen, enabling simultaneous measurement of dynamic forces at any position on the screen surface. This achieves real-time monitoring of the stress state across the entire underwater screen and effectively obtains accurate mechanical data from the middle area. The conformal integration of the flexible fabric sensor with the underwater screen 1 avoids interference with the water flow field. The double-sided waterproof component design maintains the stability of the measurement signal under complex water pressure environments, ensuring both waterproofing and screen flexibility, thus solving the problem of underwater sensor sealing.

[0026] It should be noted that the fabric sensor needs to match the force measurement range with the flexibility of the underwater curtain 1 to ensure that its force measurement range is compatible with the maximum force that the underwater curtain may be subjected to. Its own flexibility needs to be able to adapt to the deformation of the underwater curtain, and its weight should be as light as possible to reduce the impact on the underwater curtain.

[0027] In the above embodiments of this application, by fixing the fabric sensor to the surface of the underwater curtain 1 at the position where the force needs to be measured, combining the waterproof component 4 to protect the sensor, and connecting the fabric sensor to the data acquisition and processing system, it is possible to monitor the force changes at different positions of the entire curtain in real time and reduce the impact on the water flow.

[0028] In order to improve the accuracy of force measurement, in some specific embodiments of this application, the microstructure sensing layer 2 is made of a flexible material with elasticity, so that the microstructure sensing layer 2 can bend or stretch synchronously with the underwater curtain 1.

[0029] Specifically, the microstructure sensing layer 2 is made of an elastic polymer-based composite material.

[0030] In the above embodiments of this application, the microstructure sensing layer 2 is made of a material that can deform under external force and return to its original shape, achieving flexible bonding with the screen, so that the fabric sensor can be fixed at any position on the screen; in addition, the microstructure sensing layer 2 can bend or stretch synchronously with the underwater screen, avoiding measurement errors caused by material rigidity.

[0031] In some specific embodiments of this application, the flexible material has pre-formed cracks. When unloaded, the cracks close and are distributed in a unidirectional direction. The cracks propagate in a direction perpendicular to the principal stress with bending or tensile force. A schematic diagram is shown below. Figure 2 .

[0032] Specifically, the microstructure of the microstructure sensing layer 2 is the crack in the flexible material. There is a network of directional microcracks inside the flexible material. When the underwater curtain is unloaded, the cracks are closed, forming an initial conductive channel. When the underwater curtain is subjected to tension or bending, the cracks expand and the expansion direction is perpendicular to the direction of the principal stress. When deformed, the expansion of the cracks changes the conductive path. The resistance value of the microstructure sensing layer 2 changes regularly with the magnitude of deformation.

[0033] Under no-load conditions, the cracks in the microstructure sensing layer 2 are closed and unidirectionally distributed, resulting in low resistance. As bending or tensile force increases, the cracks in the microstructure sensing layer 2 gradually expand, disrupting the conductive channels and causing the resistance to gradually increase. After the applied bending or tensile force is released, the cracks in the microstructure sensing layer 2 quickly return to their original state, the conductive channels of the sensing layer are restored, and the resistance returns to its initial state. Thus, a relationship between resistance and tensile force is established, such as... Figure 3 As shown.

[0034] In the embodiments described above, the microstructure sensing layer employs a flexible material with an elastic band and microcrack structure. Its resistance changes with deformation and exhibits good recovery. The unidirectional distribution of the cracks and their rapid recovery characteristics ensure the stability and repeatability of the measurement data under continuous dynamic loads. Furthermore, the microstructure sensing layer completes signal conversion through the material's inherent physical properties, avoiding the volume issues caused by the addition of mechanical structures to traditional sensors. This allows the measurement system to maintain accuracy while minimizing its impact on the water flow state.

[0035] In order to fix the fabric sensor at any position on the underwater curtain and improve its measurement accuracy, in some specific embodiments of this application, the fabric sensor is fixed to the underwater curtain 1 by sewing.

[0036] Specifically, the sewing method refers to mechanically connecting the fabric sensor to the underwater curtain 1 using a stitching process. During the stitching process, the curtain is kept in a naturally stretched state to ensure that there are no wrinkles at the contact surface between the fabric sensor and the curtain. After sewing, the fabric sensor and the curtain form an integral flexible structure. When the curtain is subjected to water flow impact, the stitches maintain the sensor's positioning by evenly distributing the load, while allowing the curtain and fabric sensor to deform synchronously, thereby improving measurement accuracy. The sewing process requires no additional mechanical structures, allowing the fabric sensor to be placed in the central area of ​​the curtain. This overcomes the limitation of traditional tension gauges, which cannot cover the central area due to installation structure restrictions, and achieves reliable fixation of the fabric sensor at any position on the curtain, especially forming an effective monitoring point in the central area of ​​the curtain.

[0037] In the embodiments described above, the fabric sensor is sewn together with the screen, which improves the fit between the two and enables synchronous transmission of stress deformation. This method ensures connection strength while creating a flexible connection interface between the fabric sensor and the screen, avoiding stress concentration on the screen caused by rigid connectors.

[0038] To avoid the influence of the underwater environment on the fabric sensor, in some specific embodiments of this application, the waterproof component 4 is firmly connected to the underwater curtain 1 by adhesive. In the implementation of this application, the connection does not loosen within the test stress range (not exceeding 10N in the test).

[0039] Specifically, the waterproof component 4 refers to the upper and lower protective structures covering the surface of the fabric sensor, which can be made of flexible film, etc. The adhesive bonding method refers to bonding the waterproof component 4 to the underwater curtain 1 with an adhesive to form a continuous sealing layer.

[0040] For example, a flexible film is formed by uniformly coating a polyurethane waterproof coating on the surface of the fabric sensor. The coating thickness is determined according to the waterproof rating requirements to ensure complete coverage of the fabric sensor surface. When the underwater curtain is bent or stretched, the adhesive layer adapts to the interface displacement through its own elastic deformation, maintaining the integrity of the sealed interface. The waterproof component 4 is connected to the underwater curtain by EVA high-viscosity hot melt adhesive.

[0041] In the embodiments described above, the waterproof component 4 and the underwater curtain are bonded together using adhesive. This adhesive bonding creates a uniform seal across the entire interface, achieving a full circumferential seal between the waterproof component 4 and the curtain. This avoids interface peeling caused by rigid connections, blocks the path of external water seeping into the sensor area through the connection interface, and ensures the long-term measurement stability of the sensor in the underwater environment. Furthermore, the adhesive bonding method does not damage the curtain structure, avoiding any weakening of the curtain's mechanical properties due to the installation process.

[0042] To prevent internal moisture buildup from affecting the waterproofing effect, in some specific embodiments of this application, tiny vent holes are provided between the double-layer structure of the waterproof component 4.

[0043] Specifically, the vents are micropores with an average pore size of less than 50 μm, allowing internal moisture (gas) to escape while preventing external liquid water from entering.

[0044] To prevent water from seeping in through the interface and affecting the accuracy of the force measurement, in some specific embodiments of this application, a sealed interface is used at the connection between the fabric sensor and the data cable 5.

[0045] Specifically, when the underwater curtain is impacted by water flow, the sealed interface maintains the stability of the fabric sensor signal transmission by isolating it from external liquid, thereby improving the accuracy of force measurement. It can also significantly improve the sensor's pressure resistance and corrosion resistance, and extend its service life in complex underwater working conditions.

[0046] The above embodiments of this application effectively solve the problems of signal distortion and equipment corrosion caused by water seepage at the connection between the fabric sensor and the data cable, ensuring that the fabric sensor maintains a stable resistance signal output during long-term underwater monitoring, while extending the service life of the device.

[0047] To further improve the waterproof effect, in some specific embodiments of this application, the data cable 5 is provided with a waterproof sheath, which completely covers the data cable 5.

[0048] Specifically, the waterproof sheath material needs to be water-resistant and wear-resistant, and can be made of thermoplastic polyurethane, silicone, etc.

[0049] The above embodiments of this application include waterproofing the fabric sensor and related connecting parts by: uniformly coating the surface of the fabric sensor with a waterproof coating, while providing micro-ventilation holes between the two layers; sealing the connection between the fabric sensor and the data cable using a sealed interface; and completely wrapping the data cable with a waterproof sleeve. After the above operations are completed, a waterproof test is performed on the fabric sensor by covering it with humidity test paper. If the test paper changes color, the test is stopped, and the waterproofing steps are checked for errors. Only after ensuring good waterproofing effect can stress measurement be performed.

[0050] In order to meet different measurement needs, in some specific embodiments of this application, multiple fabric sensors are set on the underwater curtain 1, and the multiple fabric sensors are respectively arranged at different force measurement positions.

[0051] When the curtain is subjected to water flow load, each fabric sensor synchronously collects deformation data at the corresponding position. The data acquisition device has a high sampling frequency and measurement accuracy, and can simultaneously collect resistance change data from multiple sensors arranged at different key positions. The data at each position is processed separately to form a distributed monitoring network, thereby realizing the monitoring of the overall stress distribution of the underwater curtain.

[0052] It should be noted that, because the fabric sensors are thin and light and are directly fixed to the surface of the underwater curtain, even if multiple fabric sensors are deployed, flow field interference caused by the weight or volume of the sensors can be avoided.

[0053] The embodiments described above in this application can simultaneously acquire real-time force data of the curtain edge and center area, eliminating the monitoring blind spots present in traditional measurement methods; at the same time, the distributed and lightweight fabric sensor layout can effectively reduce the impact on water flow conditions and improve the authenticity and accuracy of measurement data.

[0054] Based on the same concept, another embodiment of this application provides a method for measuring the force on an underwater curtain based on a fabric sensor, implemented using the system described in any of the above embodiments, with reference to... Figure 4 As shown, the method includes: S1. Provide a fabric sensor; S2. Fix the fabric sensor at the preset force measurement position on the underwater curtain, and cover both sides of the fabric sensor with the waterproof components; connect one end of the data cable to both ends of the electrodes of the fabric sensor, and connect the other end of the data cable to the data acquisition unit. S3. Start the data acquisition device, select the sampling frequency, and collect the electrical signal of the fabric sensor in real time; S4. Based on the pre-established calibration relationship, the electrical signal is converted into the tension value at the corresponding position to obtain the tension variation law of each force measurement position of the underwater curtain over time.

[0055] Specifically, in S1, a suitable fabric sensor is selected based on the stress characteristics of the underwater curtain and the measurement requirements, and the sensor is calibrated using standard weights.

[0056] The specific steps in the above examples of this application can be referred to the implementation technology of the underwater curtain force measurement system based on fabric sensors in the above embodiments, and will not be repeated here.

[0057] In the embodiments described above, when the underwater curtain is impacted by water flow, the fabric sensor deforms synchronously with the underwater curtain. Cracks in the microstructure sensing layer expand as the tensile force increases, disrupting the conductive channels and causing an increase in resistance. The electrodes transmit the resistance change to a data acquisition unit, which records the signal fluctuations at a preset sampling frequency, converting the electrical signal into mechanical values. By arranging multiple sensors at the stress measurement locations on the underwater curtain, a monitoring network covering the entire curtain area is formed, comprehensively capturing the stress differences in different areas of the curtain.

[0058] The preferred features in the above embodiments can be used individually in any embodiment, or in any combination thereof, provided they do not conflict with each other. Furthermore, parts not described in detail in the embodiments can be implemented using existing technologies.

[0059] The following examples and comparative examples will be used to further illustrate this application in order to better understand the above-mentioned technical solutions. It should be understood that the following are only some examples and are not intended to limit this application.

[0060] In a specific application example of this application, the experiment was conducted in a wave-current test tank, which can simultaneously simulate the curtain force changes under wave-current coupling. Monitoring began after the wind, wave, and flow conditions in the tank stabilized. The specific experimental flow field is described in [reference needed]. Figure 4After testing, the tensile force accuracy was 0.01N, and the monitoring frequency was 50Hz. The force measurement accuracy and monitoring frequency meet the actual requirements.

[0061] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0063] In the description of the embodiments in this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0065] The foregoing has described some specific embodiments of this application. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. A system for measuring the force on an underwater curtain based on a fabric sensor, characterized in that, include: A fabric sensor, which is fixed on the surface of an underwater curtain at the location where force measurement is required, includes a microstructure sensing layer and electrodes disposed on both sides of the microstructure sensing layer. Waterproof components are respectively covered on both sides of the fabric sensor and fixedly connected to the underwater curtain; The data acquisition and processing system includes a data cable and a data acquisition unit. One end of the data cable is connected to the two electrodes of the fabric sensor, and the other end is connected to the data acquisition unit.

2. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, The microstructure sensing layer is made of a flexible material with elasticity, which allows the microstructure sensing layer to bend or stretch synchronously with the underwater curtain.

3. The underwater curtain force measurement system based on fabric sensors according to claim 2, characterized in that, The flexible material has pre-formed cracks. When unloaded, the cracks close and are distributed in a unidirectional direction. The cracks expand in a direction perpendicular to the principal stress with bending or tensile force.

4. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, The fabric sensor is fixed to the underwater curtain by sewing.

5. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, The waterproof component is connected to the underwater curtain by adhesive.

6. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, Ventilation holes are provided between the two layers of the waterproof component.

7. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, The connection between the fabric sensor and the data cable uses a sealed interface.

8. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, The data cable is equipped with a waterproof sleeve that completely covers the data cable.

9. The underwater curtain force measurement system based on fabric sensors according to claim 1, characterized in that, Multiple fabric sensors are installed on the underwater curtain, and the multiple fabric sensors are arranged at different force measurement positions.

10. A method for measuring the force on an underwater curtain based on a fabric sensor, implemented using the system described in any one of claims 1-9, characterized in that, include: Provide fabric sensors; The fabric sensor is fixed at a preset force measurement position on the underwater curtain, and the waterproof components are covered on both sides of the fabric sensor. Connect one end of a data cable to both ends of the electrodes of the fabric sensor, and connect the other end of the data cable to a data acquisition unit; Start the data acquisition device, select the sampling frequency, and collect the electrical signals of the fabric sensor in real time; Based on the pre-established calibration relationship, the electrical signal is converted into the tension value at the corresponding position, and the tension variation over time at each force measurement position of the underwater curtain is obtained.

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