Experimental platform for inhibiting marine organism fouling based on parameter-adjustable ultrasonic vibration and use method

Abstract

The invention relates to the technical field of marine antifouling, in particular to an experimental platform for inhibiting marine organism fouling based on parameter-adjustable ultrasonic vibration and a use method. The device comprises a signal generator, a power amplifier, an oscilloscope, an ultrasonic transducer, a computer, an industrial camera, a sound intensity meter and the like, through cooperative use of the parts, precise control over sound field parameters of a fouling action interface is achieved, the industrial camera and the sound intensity meter are carried through a movable platform, and the movable platform is connected with the computer. Synchronous collection of sound field distribution and biological behaviors and real-time monitoring of fouling organism movement tracks are achieved, the influence mechanism of different sound fields on the antifouling surface on marine organism attachment behaviors can be systematically studied, the problem that ultrasonic parameters and real-time monitoring are difficult to regulate and control in a real-sea experiment is effectively solved, an experiment container array composed of experiment pools is adopted, and the experiment efficiency is improved. A plurality of samples can be synchronously tested in a single experiment, so that the problem of insufficient culture density in a laboratory is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine antifouling, and particularly relates to an experimental platform for inhibiting marine biological fouling based on parameter-adjustable ultrasonic vibration and a usage method thereof. Background Art

[0002] In the marine environment, marine fouling organisms bring many intractable problems. On the one hand, their attachment will cause blockages in the pipelines and valves of seawater pipelines, reduce the effective inner diameter of seawater pipelines, lower the seawater flux, and reduce the heat exchange efficiency; on the other hand, the attached microorganisms will secrete acidic substances, accelerating the process of metal corrosion. In view of this, it is crucial to explore effective antifouling technologies.

[0003] As an emerging green antifouling technology, the ultrasonic antifouling method has broad application prospects. Its working principle is to transmit energy into water by means of high-frequency mechanical vibration, causing changes in sound pressure in water or generating cavitation phenomena, thereby repelling or killing the eggs and larvae of fouling organisms to achieve the goal of long-term antifouling. This method has significant advantages such as environmental friendliness, high efficiency and broad spectrum, adjustable, continuous protection, simple maintenance, strong adaptability, and high safety. It has been applied in scenarios such as the surface of hull structures, seawater pipelines, the surface of offshore platforms and offshore pastures, effectively preventing the attachment of marine organisms through vibration and reducing biological fouling.

[0004] However, at present, the ultrasonic antifouling technology still faces some challenges in practical applications. In-sea experiments have problems such as difficult regulation of ultrasonic parameters and inability to monitor in real time, and the experimental cost is high, making it difficult to carry out high-throughput experiments. Therefore, laboratory ultrasonic antifouling experiments have become an important way to study the impact of ultrasonic parameters on marine organisms. However, the existing ultrasonic antifouling technology has a series of defects: due to the large volume of traditional ultrasonic antifouling devices, it is difficult to achieve high-density cultivation of fouling organisms in the laboratory, the experimental breeding density is insufficient, and accurate experimental data cannot be obtained, and only in-sea experiments can be relied on; traditional observation means are difficult to synchronously quantitatively analyze sound field parameters and biological behaviors; at the same time, there is also a lack of dynamic regulation ability for the sound field distribution characteristics of the fouling interface.

[0005] In addition, the ultrasonic antifouling technology is still not perfect in preventing marine biological pollution, the research on the response of fouling organisms to different acoustic parameters is not deep enough, and due to the limitations of traditional observation and testing methods, it is difficult to observe the movement trajectories, attachment behaviors, etc. of micro-marine organisms.

[0006] Therefore, how to provide a sound-machine-electricity coupling modular that can integrate sound field regulation, behavior observation and data detection functions and is suitable for laboratory research is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0007] To solve the problems mentioned in the above background art, the experimental platform for inhibiting marine biofouling based on parameter-adjustable ultrasonic vibration provided by the present invention includes: An ultrasonic parameter adjustment module, which consists of a signal generator, a power amplifier, and an oscilloscope. The signal generator generates an electrically adjustable signal, which is amplified by the power amplifier and then drives the ultrasonic transducer to vibrate. The oscilloscope monitors the waveform, voltage, and current peak value of the electrical signal in real time to match the resonant frequency of the ultrasonic transducer; A vibration conduction module, which includes an ultrasonic transducer and an experimental platform connected thereto. The experimental platform is used to convert ultrasonic vibration energy into a dynamic sound field; the signal generator is connected to the power amplifier, and one end of the power amplifier is connected to the oscilloscope, and the other end is connected to the ultrasonic transducer; An experimental container, which consists of an experimental platform and a plurality of experimental pools, and is used to hold seawater and fouling organism samples. The experimental pools are placed on the experimental platform; A data acquisition device, which includes a movable platform, on which an industrial camera or an intensity meter is mounted. The industrial camera is connected to a computer through a transmission interface and is used to capture the movement trajectory of fouling organisms in real time. The intensity meter is used to measure the sound field distribution on the surface of the experimental platform; The experimental platform is fixed to the base of the movable platform through a bracket.

[0008] On the basis of the above solution, further, the intensity meter includes an intensity probe and a data acquisition instrument, and a reading panel is provided on the data acquisition instrument.

[0009] On the basis of the above solution, further, the experimental pool is a PDMS ring, and its bottom is bonded to the experimental platform.

[0010] On the basis of the above solution, further, the material of the experimental platform is one of titanium alloy, pure titanium, and copper alloy.

[0011] On the basis of the above solution, further, the experimental platform is disc-shaped.

[0012] On the basis of the above solution, further, the movable platform is an XYZ movable platform, and a fixture is provided thereon, which can be adjusted manually or connected to a computer for control, and the movable platform can be controlled by a computer.

[0013] On the basis of the above solution, further, the ultrasonic transducer is installed at the center below the experimental platform and is connected to the experimental platform by threads.

[0014] The present invention also provides a method for using the experimental platform for inhibiting marine biofouling based on parameter-adjustable ultrasonic vibration as described above, including the following steps: S1. Uniformly arrange the experimental pools on the experimental platform and add an equal amount of seawater; S2. Start the signal generator and oscilloscope, monitor the peak values of voltage and current through the oscilloscope, and adjust the frequency of the signal generator to match the natural frequency of the ultrasonic transducer. S3. Start the power amplifier to drive the ultrasonic transducer to vibrate and generate a dynamic sound field. S4. Clamp and move the sound intensity meter through the movable platform fixture, measure the sound intensity value in each experimental pool, and record the sound field distribution data. S5. After measurement, remove the sound intensity meter, clamp the industrial camera with the movable platform, and connect the industrial camera to the computer. Add fouling organisms to the experimental pool, observe the behavior trajectories and states of the fouling organisms through the industrial camera or computer, and obtain the biological movement trajectory images. S6. Count the number of surviving fouling organisms (N_survive) and the number of metamorphosed organisms (N_metamorphosis) after treatment by the ultrasonic device, and calculate the mortality rate (D) and metamorphosis rate (M) according to the following formulas: ; ; where N_total is the initial number of fouling organisms. S7. Based on the experimental data, establish the quantitative relationship between the sound intensity value and the mortality rate and metamorphosis rate of fouling organisms: ; ; where α, β, γ, δ are experimental fitting parameters, all greater than 0. I is the sound intensity value. S8. According to the quantitative relationship between the sound intensity value and the mortality rate and metamorphosis rate of fouling organisms, define the comprehensive anti-fouling efficiency (E) as: , and w1 + w2 = 1; where w1 and w2 are weighting coefficients used to balance the contributions of the mortality rate and metamorphosis rate to the anti-fouling efficiency.

[0015] On the basis of the above scheme, further, in step S2, by adjusting the frequency of the signal generator, after the peak values of current and voltage reach the maximum, match them with the natural frequency of the ultrasonic transducer; the natural frequency of the ultrasonic transducer is 20 - 40 kHz.

[0016] On the basis of the above scheme, further, the fitting parameters are determined by the non-linear least squares method, and the fitting error ≤ 5%.

[0017] Compared with the prior art, the experimental platform for inhibiting marine biofouling based on parameter-adjustable ultrasonic vibration provided by the present invention is an acoustic-mechanical-electrical coupling modular test system integrating sound field regulation, behavior observation, and data detection. It can deeply study the attachment behavior of marine organisms on the anti-fouling functional surface of titanium alloy under the action of the sound field. By mounting an industrial camera and a sound intensity meter on a movable platform, synchronous acquisition of the sound field distribution and biological behavior is achieved, and precise control of the sound field parameters (such as frequency, amplitude, sound intensity, etc.) at the fouling interface is realized. Combining with the real-time monitoring of the movement trajectory of fouling organisms, the influence mechanism of different sound fields on the attachment behavior of marine organisms on the anti-fouling surface can be systematically studied, effectively solving the problems that it is difficult to regulate ultrasonic parameters and conduct real-time monitoring in open sea experiments. The experimental container array composed of experimental pools can synchronously test multiple samples in a single experiment, effectively solving the problem of insufficient breeding density in the laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 FIG. is a schematic diagram of the overall structure of the experimental platform for inhibiting marine biofouling based on parameter-adjustable ultrasonic vibration provided by the present invention; Figure 2 is Figure 1 a partially enlarged schematic view of part A in Figure 3 FIG. is a schematic diagram of the structure of the sound intensity meter provided by the present invention; Figure 4 FIG. is a top view of the experimental platform and the experimental pool provided by the present invention.

[0020] Reference numerals: 1 - Computer; 2 - Movable platform; 3 - Industrial camera; 4 - Oscilloscope; 5 - Signal generator; 6 - Power amplifier; 7 - Sound intensity meter; 8 - Ultrasonic transducer; 9 - Experimental platform; 10 - Bracket; 11 - Experimental pool. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] To solve the problem that traditional ultrasonic anti-fouling devices are difficult to achieve large-density research on fouling organisms in the laboratory due to their large volume. Due to insufficient experimental breeding density, accurate experimental data cannot be obtained, and only sea trial experiments can be relied on. In addition, traditional observation means are difficult to synchronously quantitatively analyze sound field parameters and biological behaviors, and lack the ability to dynamically regulate the sound field distribution characteristics of the fouling interface.

[0024] Based on the above, the present invention provides an experimental device that can integrate functions of sound field regulation, behavior observation, and data detection, and is suitable for laboratory research.

[0025] Reference Figures 1-4 , an embodiment of the present invention provides an experimental platform for inhibiting marine organism fouling based on parameter-adjustable ultrasonic vibration, including: An ultrasonic parameter adjustment module, which consists of a signal generator 5, a power amplifier 6, and an oscilloscope 4. The signal generator 5 generates an electrically adjustable signal, which is amplified by the power amplifier 6 and then drives the ultrasonic transducer 8 to vibrate. The oscilloscope 4 monitors the waveform, voltage, and current peak value of the electrical signal in real time to match the resonant frequency of the ultrasonic transducer 8; A vibration conduction module, including an ultrasonic transducer 8 and an experimental platform 9 connected thereto. The experimental platform 9 is used to convert ultrasonic vibration energy into a dynamic sound field; the signal generator 5 is connected to the power amplifier 6, one end of the power amplifier 6 is connected to the oscilloscope 4, and the other end is connected to the ultrasonic transducer 8; An experimental container, which consists of the experimental platform 9 and a plurality of experimental pools 11, and is used to hold seawater and fouling organism samples. The experimental pools 11 are placed on the experimental platform 9; A data acquisition device, including a movable platform 2, on which an industrial camera 3 or an intensity meter 7 is mounted. The industrial camera 3 is connected to a computer 1 through a transmission interface and is used to capture the movement trajectory of fouling organisms in real time. The intensity meter 7 is used to measure the sound field distribution on the surface of the experimental platform 9. The experimental platform 9 is fixed to the base of the movable platform 2 through a bracket 10.

[0026] The experimental platform for inhibiting marine organism fouling based on parametrically adjustable ultrasonic vibration provided by the present invention realizes precise control of the sound field parameters (such as frequency, amplitude, sound intensity, etc.) at the fouling interface through the coordinated use of a signal generator 5, a power amplifier 6, an oscilloscope 4, an ultrasonic transducer 8, and an intensity meter 7. By mounting an industrial camera 3 and an intensity meter 7 on the movable platform 2 and connecting them to a computer 1, synchronous acquisition of the sound field distribution and biological behavior and real-time monitoring of the movement trajectory of fouling organisms are achieved. The influence mechanism of different sound fields on the attachment behavior of marine organisms on anti-fouling surfaces can be systematically studied, effectively solving the problems of difficult ultrasonic parameter regulation and real-time monitoring in open sea experiments. An experimental container array composed of experimental tanks 11 is adopted, and multiple samples can be synchronously tested in a single experiment, effectively solving the problem of insufficient breeding density in the laboratory.

[0027] Specifically, when in use, the number of experimental tanks 11 that can be placed on the experimental platform 9 at one time is 3 - 6.

[0028] Those skilled in the art can adjust the number of experimental tanks 11 according to experimental needs, including but not limited to the number provided in this embodiment.

[0029] In one embodiment, as Figure 2 shown, the intensity meter 7 includes an intensity probe and a data acquisition instrument, and a reading panel is provided on the data acquisition instrument.

[0030] Specifically, the intensity meter 7 is used to measure the sound intensity in each experimental tank 11, and the sound intensity value is displayed through the reading panel to visualize the acoustic parameters.

[0031] In one embodiment, as Figures 3-4 shown, the experimental tank 11 is a PDMS ring, and its bottom is bonded to the experimental platform 9 Preferably, the inner diameter of the experimental tank 11 is 40 mm, the outer diameter is 60 mm, and the thickness is 20 mm.

[0032] Specifically, the PDMS ring is a circular ring, and its bottom is bonded to the experimental platform 9, forming a container with the experimental platform 9 that can hold seawater and fouling organisms.

[0033] Using the PDMS ring as the experimental container aims at the fact that the PDMS ring has good biocompatibility and fouling organisms are easy to attach.

[0034] Those skilled in the art can also, according to the technical concept of this embodiment and their experimental needs, replace the PDMS ring with materials for different anti-fouling scenarios such as ships, pipelines or offshore platforms, so as to experiment or monitor the fouling organism attachment under different materials and different sound pressures.

[0035] It should be noted that the PDMS is polydimethylsiloxane; the size and shape of the PDMS ring can be adjusted according to the breeding density required for each experimental tank 11 during the experiment, including but not limited to the size and shape provided in this embodiment. For example, the PDMS ring can be set into a square ring structure, a rectangular ring structure, an oval ring structure, etc.

[0036] In one embodiment, the material of the experimental platform 9 is one of titanium alloy, pure titanium and copper alloy.

[0037] Preferably, the material of the experimental platform 9 is titanium alloy.

[0038] The purpose of using titanium alloy as the experimental platform 9 is that titanium alloy has good biocompatibility and fouling organisms are easy to attach.

[0039] Those skilled in the art can also, according to the technical concept of this embodiment and their experimental needs, replace the material of the experimental platform 9 with materials for different anti-fouling scenarios such as ships, pipelines or offshore platforms, so as to experiment or monitor the fouling organism attachment under different materials and different sound pressures.

[0040] In one embodiment, as Figure 4 shown, the experimental platform 9 is disc-shaped.

[0041] Preferably, the diameter of the disc is 300 mm, the thickness is 3 mm, and the inner hole diameter is 10.5 mm.

[0042] Specifically, during use, the ultrasonic transducer 8 converts the electrical signal into mechanical vibration of the experimental platform 9.

[0043] It should be noted that according to the concept of this embodiment, those skilled in the art can modify the shape and size of the experimental platform 9 according to actual needs, including but not limited to the shape and size provided in this embodiment. For example, if a higher-throughput experiment is needed, the diameter of the experimental platform 9 can be enlarged to place more PDMS rings.

[0044] In one embodiment, as Figure 2 shown, the movable platform 2 is an XYZ movable platform 2, which is provided with a fixture and can be adjusted manually or connected to the computer 1 for control. By controlling the movable platform through the computer, movement in the three axial directions of the X-axis, Y-axis and Z-axis can be achieved.

[0045] Specifically, the fixture clamps the industrial camera 3 or the sound intensity meter 7. During use, by manually adjusting or controlling the computer 1 to move the X-axis, Y-axis, and Z-axis of the movable platform 2, the observation of each experimental pool 11 and the measurement of the sound intensity are realized.

[0046] In one embodiment, as Figure 4 shown, the ultrasonic transducer 8 is installed at the center below the experimental platform 9 and is connected to the experimental platform 9 by a threaded connection.

[0047] Specifically, the experimental pool 11 is placed on the experimental platform 9. Since the sound intensity weakens from the center to the surroundings during the vibration of the experimental platform 9 excited by the ultrasonic transducer 8, the experimental pool 11 can be placed at different positions on the experimental platform 9 to regulate parameters such as the position and distance of the ultrasonic action, and it is beneficial to realize high-throughput experiments and improve the experimental efficiency.

[0048] An embodiment of the present invention also provides a method for using the experimental platform for suppressing marine biofouling based on parameter-adjustable ultrasonic vibration as described above, including the following steps: S1. Uniformly arrange the experimental pools 11 on the experimental platform 9 and add an equal amount of seawater; S2. Start the signal generator 5 and the oscilloscope 4, monitor the peak values of voltage and current through the oscilloscope, and adjust the frequency of the signal generator 5 to match the natural frequency of the ultrasonic transducer 8; S3. Start the power amplifier 6 to drive the ultrasonic transducer 8 to vibrate and generate a dynamic sound field; S4. Clamp and move the sound intensity meter 7 through the fixture of the movable platform 2, measure the sound intensity value in each experimental pool 11, and record the sound field distribution data; S5. After the measurement, remove the sound intensity meter 7, clamp the industrial camera 3 with the movable platform 2, and turn on the computer 1 to connect to the industrial camera 3; add fouling organisms to the experimental pool 11, and observe the behavior trajectory and state of the fouling organisms through the industrial camera 3 or the computer 1 to obtain the biological movement trajectory images; S6. Count the survival number (N_survival) and metamorphosis number (N_metamorphosis) of the fouling organisms after being treated by the ultrasonic device, and calculate the mortality rate (D) and metamorphosis rate (M) according to the following formulas: ; ; where N_total is the initial number of fouling organisms; S7. According to the experimental data, establish a quantitative relationship between the sound intensity value and the mortality rate and metamorphosis rate of the fouling organisms: ; ; where α, β, γ, δ are experimental fitting parameters, all greater than 0; I is the sound intensity value; S8. According to the quantitative relationship between the sound intensity value and the mortality rate and metamorphosis rate of fouling organisms, the comprehensive anti-fouling efficiency (E) is defined as: , and w1 + w2 = 1; wherein, w1 and w2 are weighting coefficients used to balance the contributions of the mortality rate and the metamorphosis rate to the anti-fouling efficiency.

[0049] By using the usage method provided by the present invention, parameters such as the ultrasonic frequency and power can be adjusted through the signal generator 5, the oscilloscope 4, and the power amplifier 6, so as to achieve precise control of the sound field parameters at the fouling interface. The industrial camera 3 and the sound intensity meter 7 are carried by the movable platform 2 and cooperate with the computer 1 to realize the synchronous acquisition of the sound field distribution and the biological behavior and the real-time monitoring of the movement trajectory of the fouling organisms, effectively solving the problems that it is difficult to adjust the ultrasonic parameters and conduct real-time monitoring in the actual sea experiment; In addition, the killing effect of ultrasonic treatment on fouling organisms is directly quantified through the mortality formula, and the proportion of development and metamorphosis among the surviving larvae is measured through the metamorphosis rate formula, reflecting the long-term inhibition of the ultrasonic on the biological life cycle. The anti-fouling efficiency at different sound intensities and frequencies can be accurately evaluated; the relationship between the metamorphosis rate and the mortality rate and the sound intensity is described by a function to integrate the mortality rate and the metamorphosis rate; different scenario requirements are adapted through the weighting coefficients to meet the requirements of the complex marine environment.

[0050] During use, the contributions of the mortality rate and the metamorphosis rate to the anti-fouling efficiency can be balanced through the weighting coefficients. For example: if the killing effect is emphasized, w1 = 0.7 and w2 = 0.3 can be set; if the development inhibition is emphasized, w1 = 0.4 and w2 = 0.6 can be set. The weighting coefficients can be adjusted according to actual needs, including but not limited to the solutions provided in this embodiment.

[0051] In one embodiment, in step S2, the oscilloscope 4 can display the waveform of the electrical signal, the peak values of the voltage and the current on the screen, and adjust the frequency of the signal generator 5 so that after the peak values of the current and the voltage reach the maximum value, they match the natural frequency of the ultrasonic transducer 8; the natural frequency of the ultrasonic transducer 8 is 20 - 40 kHz.

[0052] Preferably, the natural frequency of the ultrasonic transducer 8 is 40 kHz.

[0053] Specifically, the oscilloscope 4 displays the electrical signal on the screen in the form of a waveform, and at the same time can display the peak values of the current and the voltage of the electrical signal and the phase angle. By changing the output signal frequency, the peak values of the current and the voltage are changed. When the frequency is adjusted so that the peak values of the voltage and the current reach the maximum, the frequency of the electrical signal matches the natural frequency of the ultrasonic transducer 8 at this time.

[0054] In one embodiment, the fitting parameters are determined by the nonlinear least squares method, and the fitting error ≤ 5%.

[0055] Although terms such as computer, mobile platform, industrial camera, oscilloscope, signal generator, power amplifier, sound intensity meter, ultrasonic transducer, experimental platform, bracket, and experimental pool are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters, characterized in that: include: The ultrasonic parameter adjustment module is composed of a signal generator, a power amplifier and an oscilloscope. The signal generator generates an electrical signal with adjustable frequency, which is amplified by the power amplifier to drive the ultrasonic transducer to vibrate. The oscilloscope monitors the waveform, voltage and current peak of the electrical signal in real time to match the resonant frequency of the ultrasonic transducer. A vibration conduction module, comprising an ultrasonic transducer and an experimental platform connected thereto, wherein the experimental platform is used to convert ultrasonic vibration energy into a dynamic sound field; the signal generator is connected to a power amplifier, one end of the power amplifier is connected to an oscilloscope, and the other end is connected to the ultrasonic transducer; The experimental container is composed of an experimental platform and a plurality of experimental pools, and is used to carry seawater and contaminated biological samples, wherein the experimental pools are placed on the experimental platform; The data acquisition device includes a movable platform on which an industrial camera or a sound intensity meter is mounted. The industrial camera is connected to a computer via a transmission interface to capture the movement trajectory of fouling organisms in real time, and the sound intensity meter is used to measure the sound field distribution on the surface of the experimental platform; The experimental platform is fixed on the base of the movable platform through a bracket.

2. The experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters according to claim 1 is characterized by: The sound intensity meter comprises a sound intensity probe and a data acquisition instrument, and the data acquisition instrument is provided with a reading panel.

3. The experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters according to claim 1 is characterized by: The experimental pool is a PDMS ring, the bottom of which is bonded to the experimental platform.

4. The experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters according to claim 1 is characterized by: The material of the experimental platform is one of titanium alloy, pure titanium and copper alloy.

5. The experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters according to claim 1 is characterized by: The experimental platform is in the shape of a disc.

6. The method for inhibiting marine biofouling based on ultrasonic vibration with adjustable parameters according to claim 1 The platform is characterized by: The movable platform is an XYZ movable platform, on which a fixture is arranged, and can be controlled by manual adjustment or by connecting with a computer, and the movable platform can be controlled by the computer.

7. The experimental platform for inhibiting marine biofouling based on adjustable ultrasonic vibration parameters according to claim 1 is characterized by: The ultrasonic transducer is installed at the center below the experimental platform and is connected to the experimental platform through threads.

8. A method for using the marine biofouling inhibition experimental platform based on parameter-adjustable ultrasonic vibration according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Arrange the experimental pools evenly on the experimental platform and add an equal amount of seawater; S2, start the signal generator and the oscilloscope, monitor the peak values ​​of the voltage and current through the oscilloscope, and adjust the frequency of the signal generator to match the natural frequency of the ultrasonic transducer; S3, start the power amplifier to drive the ultrasonic transducer to vibrate and generate a dynamic sound field; S4. Clamp and move the sound intensity meter through the movable platform fixture to measure the sound intensity value in each experimental pool and record the sound field distribution data; S5. After the measurement, the sound intensity meter is removed, the industrial camera is clamped on the movable platform, and the computer is turned on to connect the industrial camera; fouling organisms are added to the experimental pool, and the behavior trajectory and state of the fouling organisms are observed through the industrial camera or computer to obtain the biological movement trajectory image; S6. Count the number of surviving (N_surviving) and metamorphosing (N_metamorphosing) fouling organisms after treatment with the ultrasonic device, and calculate the mortality rate (D) and metamorphosing rate (M) according to the following formula: ; ; Among them, N_total is the initial number of fouling organisms; S7. Based on the experimental data, establish the quantitative relationship between the sound intensity value and the mortality rate and metamorphosis rate of fouling organisms: ； ； Among them, α, β, γ, and δ are experimental fitting parameters, all greater than 0; I is the sound intensity value; S8. Based on the quantitative relationship between sound intensity and the mortality and metamorphosis rate of fouling organisms, the comprehensive antifouling efficiency (E) is defined as: , and w1+w2=1; Among them, w1 and w2 are weight coefficients, which are used to balance the contribution of mortality rate and metamorphosis rate to antifouling efficiency.

9. The method for using the marine biofouling inhibition experimental platform based on adjustable parameter ultrasonic vibration according to claim 8 is characterized in that: In step S2, the frequency of the signal generator is adjusted so that the peak value of the current and voltage reaches a maximum value and matches the natural frequency of the ultrasonic transducer; the natural frequency of the ultrasonic transducer is 20-40kHz.

10. The experimental platform for inhibiting marine biofouling based on parameter-adjustable ultrasonic vibration according to claim 8 is characterized by: The fitting parameters are determined by nonlinear least square method, and the fitting error is ≤5%.

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