An underwater sound source

Abstract

The application discloses an underwater sound source, which comprises a shell, a vibrating part, an actuator, a gas storage tank and a gas guide assembly. The shell comprises a first inner cavity, and the shell is provided with a first opening end; the vibrating part is arranged at the first opening end, and the first inner cavity forms a closed cavity; the actuator is arranged inside the first inner cavity and connected with the vibrating part, and the vibrating part is driven to vibrate by the actuator; the gas storage tank is connected with the shell; and the gas guide assembly is connected between the gas storage tank and the shell and used for adjusting the air pressure in the first inner cavity. The underwater sound source provided by the application is additionally provided with the gas storage tank which is communicated with the first inner cavity of the shell, the air pressure in the first inner cavity is adjusted through the gas guide assembly, when the working depth of the underwater sound source is deep, the gas storage tank provides the gas to the first inner cavity, air pressure compensation is carried out, the balance between the air pressure and the water pressure is realized, the underwater sound source can reach a deeper working depth, or the first inner cavity discharges the excess gas through the gas guide assembly, and the underwater sound source can work at a shallower working depth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound wave emission, in particular to an underwater sound source. BACKGROUND

[0002] With the development of modern science and technology, people's way of perceiving the world is more and more diversified and accurate. The development of sound, light, electricity, magnetism, machinery, microelectronics and quantum technologies has brought a brand-new, three-dimensional information interaction world to our eyes. At present, the information interaction in water is mainly based on sound signal interaction. In many fields such as underwater acoustic detection, marine geological exploration and underwater target simulation, high-frequency or low-frequency underwater sound sources are needed to serve as detection targets or test sound sources for performance measurement and performance calibration of underwater acoustic hydrophones and receiving arrays.

[0003] Traditional sound sources are generally completed by piezoelectric transducers made of piezoelectric materials, and the frequency is generally in the medium-high frequency band. The sound source technology using bending and stretching transducers can make the sound source frequency drop to the range of several hundred hertz, and these sound sources generally perform well in shallow water. With the gradual increase of working depth, underwater sound sources face the problem of compensation caused by static water pressure. Moreover, the deeper the depth, the more difficult the compensation. In order to reduce the influence of pressure on the performance of the sound source, a pressure compensation structure needs to be used. In the prior art, a gas bag is usually used for compensation. However, with the increase of depth, the sound compensation ability of the gas in the gas bag decreases rapidly due to the increase of compression degree, and gradually loses the compensation effect. Therefore, the realization of high-depth work faces technical difficulties.

[0004] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. SUMMARY

[0005] The purpose of the present application is to provide an underwater sound source which can realize self-balance of air pressure and water pressure to achieve higher working depth.

[0006] To achieve the above-mentioned purpose of the application, the present application provides an underwater sound source, comprising

[0007] a shell comprising a first inner cavity, the shell being provided with a first open end;

[0008] a vibrating member arranged at the first open end and forming a closed cavity with the first inner cavity;

[0009] an actuator arranged inside the first inner cavity and connected with the vibrating member, the vibrating member being driven to vibrate by the actuator;

[0010] a gas storage tank connected with the shell; and

[0011] A gas guide assembly is connected between the gas tank and the housing for adjusting the gas pressure in the first inner cavity.

[0012] Further, the gas tank is provided with a first gas guide joint connected with the gas guide assembly, and the housing is provided with a second gas guide joint connected with the gas guide assembly, and the second gas guide joint is communicated with the first inner cavity.

[0013] Further, the gas guide assembly comprises a gas guide pipe, a first gas pressure gauge, a second gas pressure gauge, a first electromagnetic valve, a second electromagnetic valve and an exhaust nozzle, two ends of the gas guide pipe are connected with the first gas guide joint and the second gas guide joint respectively, the first gas pressure gauge is installed on the gas guide pipe and located at a side close to the first gas guide joint, the second gas pressure gauge is installed on the gas guide pipe and located at a side close to the second gas guide joint, the first electromagnetic valve and the second electromagnetic valve are both installed on the gas guide pipe and located at sides close to the first gas pressure gauge and the second gas pressure gauge respectively, and the exhaust nozzle is connected with the second electromagnetic valve.

[0014] Further, the housing comprises a ring-shaped housing and a partition plate connected with the ring-shaped housing, the housing further comprises a second inner cavity, the first inner cavity and the second inner cavity are oppositely located at two sides of the partition plate, and the vibration member is oppositely arranged with the partition plate.

[0015] Further, the ring-shaped housing and the partition plate are integrally formed, and the first inner cavity and the second inner cavity are formed between the ring-shaped housing and the partition plate.

[0016] Further, the gas tank comprises a tank body and a base plate connected with the tank body, the housing is provided with a second open end communicated with the second inner cavity, the base plate is arranged at the second open end, and the second inner cavity forms a closed cavity.

[0017] Further, the housing and the gas tank are both made of hard metal or alloy material.

[0018] Further, the underwater sound source further comprises a control circuit board, the control circuit board is installed on the partition plate and located inside the second inner cavity, and is connected with the first electromagnetic valve and the second electromagnetic valve through signal lines.

[0019] Further, the underwater sound source further comprises a gas pressure sensor and a water pressure sensor, the gas pressure sensor is installed in the first inner cavity and electrically connected with the control circuit board, the water pressure sensor is installed outside the housing and electrically connected with the control circuit board, and is oppositely arranged with the gas pressure sensor.

[0020] Further, the vibration member comprises a radiating plate, and the actuator is fixedly connected with the radiating plate.

[0021] Further, the radiation plate is fixedly connected with the annular shell, and the radiation plate seals the first opening end.

[0022] Further, the vibration member comprises a radiation plate and an elastic support ring outside the radiation plate, an annular space is formed between the radiation plate and the annular shell, the elastic support ring is fixedly connected with the annular shell and the radiation plate respectively, and seals the annular space, and the actuator is fixedly connected with the radiation plate.

[0023] Further, the elastic support ring is made of a high polymer material, and the radiation plate is made of a hard metal or alloy or nylon material.

[0024] Further, the elastic support ring comprises an outer ring, an inner ring and at least one protruding part connected between the outer ring and the inner ring, the outer ring is fixedly connected with the annular shell, and the inner ring is fixedly connected with the radiation plate.

[0025] Compared with the prior art, the underwater sound source provided by the present application has the following beneficial effects: the underwater sound source provided by the present application is provided with a gas storage tank in communication with a first inner cavity of the shell, the gas pressure in the first inner cavity is adjusted through a gas guide assembly, when the working depth of the underwater sound source is deep, the gas storage tank provides gas to the first inner cavity for gas pressure compensation, the balance between the gas pressure and the water pressure is realized, and the underwater sound source can reach a deeper working depth and reliably work at different depths. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the underwater sound source in the first embodiment of the present application;

[0027] Figure 2 is a sectional view of the underwater sound source in the first embodiment of the present application;

[0028] Figure 3 is an explosion view of the underwater sound source in the first embodiment of the present application;

[0029] Figure 4 is a sectional view of the underwater sound source in the second embodiment of the present application;

[0030] Figure 5 is an explosion view of the underwater sound source in the second embodiment of the present application;

[0031] Figure 6 is Figure 4 and Figure 5 is a structural schematic view of the elastic support member. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] As used herein, the terms "comprise," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] Example 1:

[0036] like Figures 1 to 3 As shown, the present invention provides an underwater sound source, including a housing 1, a vibrating member, an actuator 2, an air storage tank 6 and an air guide component 7.

[0037] The housing 1 includes a first inner cavity 101 and is provided with a first open end 102 .

[0038] The vibrating element is disposed at the first open end 102 and seals the first open end 102 , so that the first inner cavity 101 forms a sealed cavity.

[0039] The actuator 2 is arranged inside the first inner cavity 101 and connected to the vibrating element. The vibrating element is driven to vibrate by the actuator 2, that is, the vibrating element follows the longitudinal vibration of the actuator 2 to vibrate and emit sound waves underwater. Figure 1 and Figure 2 In the direction of the central axis A, the vibration direction of the vibrating element is usually consistent with the axial direction of the actuator 2.

[0040] The gas storage tank 6 is connected to the housing 1 and includes a third cavity 601. The third cavity 601 is pre-filled with gas before launching. The gas may be high-pressure gas.

[0041] The air guide assembly 7 is connected between the air tank 6 and the shell 1, and is used to adjust the air pressure in the first inner cavity 101 of the shell 1.

[0042] The air tank 6 is in communication with the first inner cavity 101 of the shell 1 through the air guide assembly 7, and the air pressure in the first inner cavity 101 is adjusted through the air guide assembly 7. Specifically, when the working depth of the underwater sound source is deep, the air tank 6 provides air to the first inner cavity 101 to perform air pressure compensation, so that the underwater sound source can reach a deeper working depth; when the working depth of the underwater sound source is shallow, the first inner cavity 101 can be exhausted through the air guide assembly 7 to achieve self-balance of the air pressure and the water pressure.

[0043] The air tank 6 is provided with a first air guide connector 8 connected with the air guide assembly 7, and the shell 1 is provided with a second air guide connector 9 connected with the air guide assembly 7. The first air guide connector 8 is in communication with the third inner cavity 601, and the second air guide connector 9 is in communication with the first inner cavity 101. The air in the third inner cavity 601 is transported to the first inner cavity 101 through the air guide assembly 7 to perform air pressure compensation and achieve self-balance of the air pressure and the water pressure.

[0044] As a preferred embodiment, as shown in Figure 1 The air guide assembly 7 includes an air guide pipe 701, a first air pressure gauge 702, a second air pressure gauge 703, a first electromagnetic valve 704, a second electromagnetic valve 705, and an exhaust nozzle 706. The two ends of the air guide pipe 701 are respectively connected with the first air guide connector 8 and the second air guide connector 9. The first air pressure gauge 702 is installed on the air guide pipe 701 and located on the side close to the first air guide connector 8. The second air pressure gauge 702 is installed on the air guide pipe 701 and located on the side close to the second air guide connector 9. The first electromagnetic valve 704 and the second electromagnetic valve 705 are both installed on the air guide pipe 701 and respectively located on the side close to the first air pressure gauge 702 and the second air pressure gauge 703. The exhaust nozzle 706 is connected with the second electromagnetic valve 705.

[0045] When the external water pressure is greater than the air pressure in the first inner cavity 101 (for example, when the working depth of the underwater sound source is deep), the first electromagnetic valve 704 and the second electromagnetic valve 705 can be opened to make the air in the third inner cavity 601 transmit to the first inner cavity 101 through the air guide pipe 701, so as to increase the air pressure in the first inner cavity 101 and achieve balance of the air pressure and the external water pressure. When the external water pressure is less than the air pressure in the first inner cavity 101 (for example, when the underwater sound source rises to a shallow working depth), the first electromagnetic valve 704 can be closed, and the second electromagnetic valve 705 can be opened. The air in the first inner cavity 101 is transported to the air guide pipe 701, and the excess air is discharged through the exhaust nozzle 706 connected with the second electromagnetic valve 705, so as to achieve balance of the air pressure and the water pressure in the first inner cavity 101.

[0046] As a preferred embodiment, as shown in Figure 2As shown, the shell 1 comprises a ring-shaped casing 103 and a partition plate 104 connected with the ring-shaped casing 103, and further comprises a second inner cavity 105, the first inner cavity 101 and the second inner cavity 105 are respectively located on both sides of the partition plate 104, and the vibration piece is arranged opposite to the partition plate 104. The ring-shaped casing 103 is integrally formed with the partition plate 104, and the first inner cavity 101 and the second inner cavity 105 are respectively formed between the partition plate 104 and the portions of the ring-shaped casing 103 located on both sides of the partition plate 104. The vibration piece is mounted at the first opening end 102 to form a closed cavity in the first inner cavity 101, and when the vibration piece follows the actuator 2 to vibrate longitudinally in water, it will vibrate to emit sound waves in water.

[0047] The gas storage tank 6 comprises a tank body 602 and a base plate 603 connected with the tank body 602, and the shell 1 is provided with a second opening end 106 in communication with the second inner cavity 105, and the base plate 603 is arranged at the second opening end 106 to form a closed cavity in the second inner cavity 105. In this embodiment, the third inner cavity 601 is formed between the tank body 602 and the base plate 603.

[0048] The shell 1 and the gas storage tank 6 are made of hard metal or alloy material, for example, stainless steel or aluminum alloy material, which has certain pressure resistance and is not easy to deform or compress even at a high depth underwater. The actuator 2 is preferably an inertial actuator, and further preferably an electromagnetic inertial actuator, which moves longitudinally along the axis A. In this embodiment, the inertial actuator is used to drive the vibration piece to move to radiate sound waves underwater.

[0049] The actuator 2 is not directly connected with the shell 1, which greatly reduces the reaction force on the shell 1 when the sound is emitted, avoiding causing vibration of the shell 1. When the underwater sound source is mounted on the ship body, the force acting on the ship body will be much smaller, so that the noise caused by the excitation of the ship body is greatly reduced when the underwater sound source is fixed on the outside of the ship body.

[0050] Further, as shown in Figure 2 and Figure 3 The underwater sound source further comprises a control circuit board 10, a gas pressure sensor 11 and a water pressure sensor 12. The control circuit board 10 is mounted on the partition plate 104 and located inside the second inner cavity 105. Since the gas pressure in the second inner cavity 105 will not change due to charging and discharging, the internal gas pressure is more stable, which can reduce the risk of water leakage, and also will not affect the normal work of the electronic components on the control circuit board 10 due to pressure, which can effectively ensure the safety of the control circuit board 10. The control circuit board 10 is connected with the first electromagnetic valve 704 and the second electromagnetic valve 705 through a signal line 13, and can control the action of the electromagnetic valve.

[0051] The air pressure sensor 11 is installed in the first inner cavity 101 and electrically connected with the control circuit board 10, and the water pressure sensor 12 is installed outside the shell 1 and electrically connected with the control circuit board 10. Preferably, it is arranged opposite to the air pressure sensor 11, and the detected water pressure is more consistent with the actual water pressure at the depth of the underwater sound source. The air pressure sensor 11 detects the air pressure in the first inner cavity 101, and the water pressure sensor 12 detects the water pressure at the working depth of the underwater sound source.

[0052] When the air pressure detected by the air pressure sensor 11 is lower than the water pressure detected by the water pressure sensor 12, it sends a signal to the control circuit board 10, and then the control circuit board 10 controls the first electromagnetic valve 704 and the second electromagnetic valve 705 to open through the signal line 13, so that the gas in the third inner cavity 601 of the gas storage tank 6 is transported to the first inner cavity 101 of the shell 1 through the air guide pipe 701, the air pressure in the first inner cavity 101 is compensated, and the internal and external pressures are balanced; when the air pressure detected by the air pressure sensor 11 is equal to the water pressure detected by the water pressure sensor 12, it sends a signal to the control circuit board 10, and then the control circuit board 10 controls the first electromagnetic valve 704 and the second electromagnetic valve 705 to close through the signal line 11, stopping the air pressure compensation of the first inner cavity 101, so as to balance the air pressure and the water pressure.

[0053] When the air pressure detected by the air pressure sensor 11 is higher than the water pressure detected by the water pressure sensor 12, it sends a signal to the control circuit board 10, and then the control circuit board 10 controls the first electromagnetic valve 704 to close and the second electromagnetic valve 705 to open through the signal line 13, so that the gas in the first inner cavity 101 is transported to the air guide pipe 701, and then the excess gas is discharged through the exhaust nozzle 706 connected with the second electromagnetic valve 705, so as to balance the internal and external pressures; when the air pressure detected by the air pressure sensor 11 is equal to the water pressure detected by the water pressure sensor 12, it sends a signal to the control circuit board 10, and then the control circuit board 10 controls the second electromagnetic valve 705 to close through the signal line 13, stopping the exhaust of the first inner cavity 101, so as to balance the air pressure and the water pressure.

[0054] In this embodiment, as shown in Figure 2 and Figure 3 The vibration member includes a radiation plate 3, the actuator 2 is fixedly connected with the radiation plate 3, the radiation plate 3 is fixedly connected with the annular shell 103 and seals the first open end 102. The vibration member with this structure can emit high-frequency sound waves when the underwater sound source vibrates underwater, and the vibration frequency of the high-frequency sound waves is between 500 Hz and 5000 Hz.

[0055] Radiation plate 3 is a hard plate made of metal or alloy or nylon material, which provides elasticity by itself, has large rigidity and small displacement. Radiation plate 3 is a circular flat plate, and can also be designed into a rectangle or other polygon according to requirements, which is not limited in the application. The contour size of radiation plate 3 corresponds to the contour size of first opening end 102, which facilitates the direct connection of radiation plate 3 with shell 1. When radiation plate 3 vibrates, it pushes the external water to vibrate and radiate sound waves outward. In the embodiment, a plurality of mounting holes 301 are arranged in a ring around the periphery of radiation plate 3, and ring-shaped shell 103 is rigidly and fixedly connected with radiation plate 3 through connecting members such as screws installed in mounting holes 301. Actuator 2 is also rigidly and fixedly connected with radiation plate 3 through connecting members such as screws, which is firm and not easy to fall off.

[0056] When actuator 3 longitudinally vibrates, it pushes radiation plate 3 to vibrate in water. Since radiation plate 3 provides elasticity by itself, has large rigidity and small displacement, it can only emit high-frequency sound waves.

[0057] Before the underwater sound source is launched, a certain air pressure needs to be pre-filled into first inner cavity 101 and third inner cavity 601. When the underwater sound source is launched, the water pressure on radiation plate 3 gradually increases with the increase of depth. When reaching the working depth, the water pressure outside and the air pressure of the pre-stored air in first inner cavity 101 reach balance. When reaching a deeper working depth, the air pressure of first inner cavity 101 is compensated through the cooperation of air tank 6 and air guide assembly 7, so that the water pressure outside and the air pressure of the gas in first inner cavity 101 reach balance. When reaching a shallower working depth, the excess gas in first inner cavity 101 is discharged through air guide assembly 7, so that the water pressure outside and the air pressure of the gas in first inner cavity 101 reach balance.

[0058] Embodiment two:

[0059] An underwater sound source based on embodiment one, the difference is that:

[0060] As shown in Figure 4 and 5 , the vibrating member includes radiation plate 3 and elastic support ring 4 located outside radiation plate 3. Ring-shaped space 5 is formed between radiation plate 3 and ring-shaped shell 103, and elastic support ring 4 is fixedly connected with ring-shaped shell 103 and radiation plate 3 respectively and seals ring-shaped space 5. Actuator 2 is fixedly connected with radiation plate 3. The vibrating member with the structure can make the underwater sound source vibrate to emit low-frequency sound waves in water, and the vibration frequency of the low-frequency sound waves is between 10 Hz and 500 Hz.

[0061] The radiating plate 3 is a rigid plate made of metal, alloy, or nylon. Its dimensions are smaller than those of the first open end 102. An annular gap 5 is formed between the radiating plate 3 and the annular housing 103. An elastic support ring 4 is fixedly connected to the annular housing 103 and the radiating plate 3, respectively, sealing the annular gap 5. The actuator 2 is rigidly fixed to the radiating plate 3 via screws and other fasteners, ensuring a secure connection that resists falling off. When the radiating plate 3 vibrates, the elastic support ring 4 provides elastic support, significantly reducing the resonant frequency of the moving body formed by the radiating plate 3 and actuator 2, enabling the radiation of very low-frequency sound waves.

[0062] The elastic support ring 4 is made of polymer material, preferably rubber material, which provides elastic support, small rigidity, high elasticity and large displacement. Figure 6 As shown, the elastic support ring 4 includes an outer ring 401, an inner ring 402, and at least one protrusion 403 connected between the outer ring 401 and the inner ring 402. Preferably, the protrusion 403 protrudes along the normal direction of the radiation plate 3 and is annular. The elastic support ring 4 is not limited to including only one protrusion 403 and may also include multiple protrusions 403. The outer ring 401 is fixedly connected to the annular housing 103 by vulcanization, and the inner ring 402 is fixedly connected to the radiation plate 3 by vulcanization, which ensures a firm connection and is not easily detached.

[0063] When the actuator 2 vibrates up and down, the radiation plate 3 vibrates accordingly, and the protrusion 403 of the elastic support ring 4 provides elastic support and displacement. Since the elastic support ring 4 provides elastic support, has low stiffness, high elasticity and large displacement, it can emit low-frequency sound waves.

[0064] The above is only a specific embodiment of the present invention, and any other improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. An underwater sound source, characterized in that: include a housing comprising a first inner cavity, said housing being provided with a first open end; a vibrating member disposed at the first open end and forming the first inner cavity into a closed cavity; An actuator is provided inside the first inner cavity and connected to the vibrating element, and the vibrating element is driven to vibrate by the actuator; a gas storage tank connected to the shell; as well as, an air guide assembly connected between the air storage tank and the housing, and configured to adjust the air pressure in the first inner cavity; The housing includes an annular shell and a partition connected to the annular shell, the housing also includes a second inner cavity, the first inner cavity and the second inner cavity are relatively located on both sides of the partition, and the vibrating member is arranged opposite to the partition; The underwater sound source further includes a control circuit board mounted on the partition and located inside the second inner cavity.

2. The underwater sound source according to claim 1, wherein: The gas storage tank is provided with a first gas guide joint connected to the gas guide component, and the shell is provided with a second gas guide joint connected to the gas guide component, and the second gas guide joint is communicated with the first inner cavity.

3. The underwater sound source according to claim 2, characterized in that The air guide assembly includes an air guide pipe, a first pressure gauge, a second pressure gauge, a first solenoid valve, a second solenoid valve and an exhaust nozzle. The two ends of the air guide pipe are respectively connected to the first air guide joint and the second air guide joint. The first pressure gauge is installed on the air guide pipe and is located on a side close to the first air guide joint. The second pressure gauge is installed on the air guide pipe and is located on a side close to the second air guide joint. The first solenoid valve and the second solenoid valve are both installed on the air guide pipe and are respectively located on a side close to the first pressure gauge and the second pressure gauge. The exhaust nozzle is connected to the second solenoid valve.

4. The underwater sound source according to claim 1, wherein: The annular shell and the partition are integrally formed, and the first inner cavity and the second inner cavity are formed between the annular shell and the partition.

5. The underwater sound source according to claim 4, characterized in that: The gas storage tank includes a tank body and a base plate connected to the tank body. The shell is provided with a second open end communicating with the second inner cavity. The base plate is provided at the second open end and forms the second inner cavity into a closed cavity.

6. The underwater sound source according to claim 5, characterized in that The shell and the gas storage tank are both made of hard metal or alloy material.

7. The underwater sound source according to claim 3, characterized in that: The control circuit board is connected to the first solenoid valve and the second solenoid valve through signal lines.

8. The underwater sound source according to claim 7, characterized in that: The underwater sound source also includes an air pressure sensor and a water pressure sensor. The air pressure sensor is installed in the first inner cavity and is electrically connected to the control circuit board. The water pressure sensor is installed outside the shell and is electrically connected to the control circuit board. It is arranged opposite to the air pressure sensor.

9. The underwater sound source according to any one of claims 1 to 8, characterized in that: The vibration member includes a radiation plate, and the actuator is fixedly connected to the radiation plate.

10. The underwater sound source according to claim 9, characterized in that: The radiation plate is fixedly connected to the annular housing, and the radiation plate seals the first opening end.

11. The underwater sound source according to claim 9, characterized in that The vibrating member includes a radiation plate and an elastic support ring located outside the radiation plate, an annular gap is formed between the radiation plate and the annular shell, the elastic support ring is fixedly connected to the annular shell and the radiation plate respectively, and seals the annular gap, and the actuator is fixedly connected to the radiation plate.

12. The underwater sound source according to claim 11, characterized in that The elastic support ring is made of polymer material, and the radiation plate is made of hard metal, alloy or nylon material.

13. The underwater sound source according to claim 11, characterized in that The elastic support ring includes an outer ring, an inner ring and at least one protrusion connected between the outer ring and the inner ring. The outer ring is fixedly connected to the annular shell, and the inner ring is fixedly connected to the radiation plate.

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