Hydrophone array test fixture

Abstract

The application discloses a hydrophone array test fixture, which comprises a base plate and at least two fixture assemblies, the base plate is connected with a test platform for vibration test, and the base plate can vibrate synchronously with the test platform. Each fixture assembly comprises a fixture seat and at least one fixture cover, the fixture seat is fixedly connected with the base plate, the fixture seat can vibrate synchronously with the base plate, the fixture seat is formed with a first clamping groove, the extending direction of the first clamping groove is consistent with the extending direction of the fixture seat, and each fixture cover is connected with the fixture seat. The fixture cover is at least partially located above the first clamping groove, the fixture cover and the first clamping groove form a clamping space, and the clamping space is used for clamping a hydrophone. Through the above arrangement, the vibration test precision of the hydrophone array is improved.

Description

Technical Field

[0001] This application relates to the field of fixtures, and in particular to a hydrophone array test fixture. Background Technology

[0002] A hydrophone is an underwater acoustic signal sensor based on fiber optic and optoelectronic technologies. A hydrophone array is a system composed of multiple hydrophones arranged in a specific geometric configuration. Hydrophone arrays are widely used in underwater communication, exploration, target positioning, tracking and other fields.

[0003] Existing hydrophone arrays require vibration performance testing before use. During the test, clamps are used to fix the hydrophones to the vibration test platform. However, hydrophone arrays usually contain multiple hydrophones. If multiple hydrophones are subjected to independent vibration tests, it will be difficult to keep the vibration test parameters of the multiple hydrophones consistent, resulting in inconsistent test environments among the multiple hydrophones, which in turn reduces the accuracy of the vibration test of the hydrophone array. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a hydrophone array test fixture that can improve the accuracy of vibration testing.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A hydrophone array test fixture includes a base plate and at least two fixture assemblies. The base plate is connected to a test platform for vibration testing and is capable of vibrating synchronously with the test platform. Each fixture assembly includes a fixture seat and at least one fixture cover. The fixture seat is fixedly connected to the base plate and is capable of vibrating synchronously with the base plate. The fixture seat has a first clamping groove, the extension direction of which is consistent with the extension direction of the fixture seat. Each fixture cover is connected to the fixture seat. The fixture cover is at least partially located above the first clamping groove, and the fixture cover and the first clamping groove enclose a clamping space for clamping hydrophones.

[0007] Furthermore, the clamp cover is formed with a second clamping groove for clamping the hydrophone, and both the first and second clamping grooves are arc-shaped grooves; the radius of curvature of the first and second clamping grooves is the same, and the length of the second clamping groove along the extension direction of the clamp seat is less than the length of the first clamping groove.

[0008] Furthermore, the fixture base has multiple sets of mounting points distributed along the extension direction of the fixture base. Each set of mounting points includes a first mounting point and a second mounting point. The first mounting point and the second mounting point are located on both sides of the first clamping groove along the extension direction perpendicular to the fixture base. The fixture cover is connected to two first fasteners along the extension direction perpendicular to the fixture base. The two first fasteners are respectively connected to the first mounting point and the second mounting point of any set of mounting points.

[0009] Furthermore, the clamp cover has a first limiting groove, which is located on one side of the first clamping groove along the extension direction of the clamp seat and communicates with the first clamping groove. The clamp assembly also includes a limiting cover, which is connected to the clamp seat. The limiting cover is at least partially located above the first limiting groove, and the limiting cover and the first limiting groove enclose a limiting space for limiting the optical cable connected to the hydrophone.

[0010] Furthermore, the limiting cover has a second limiting groove for limiting the optical cable. Both the first limiting groove and the second limiting groove are arc-shaped grooves. The radius of curvature of the first limiting groove and the radius of curvature of the second limiting groove are the same. The length of the second limiting groove along the extension direction of the clamp seat is less than the length of the first limiting groove.

[0011] Furthermore, the fixture base is provided with a third mounting point and a fourth mounting point, which are located on both sides of the first limiting groove along the extending direction of the fixture base; the limiting cover is connected to two second fasteners along the perpendicular extending direction of the fixture base, and the two second fasteners are respectively connected to the third mounting point and the fourth mounting point.

[0012] Furthermore, a chamfer is provided at the connection between the first clamping groove and the first limiting groove.

[0013] Furthermore, the fixture seat also includes at least one set of connectors distributed along the extension direction of the fixture seat. Each set of connectors includes a first connector and a second connector. The first connector and the second connector are located on both sides of the fixture seat along a direction perpendicular to the extension direction of the fixture seat. The first connector and the second connector are respectively fixedly connected to the base plate.

[0014] Furthermore, the base plate includes a connecting surface that abuts against the test platform. The connecting surface is located on the side of the base plate opposite to the fixture assembly. The base plate has at least one weight-reducing groove, the opening of which is located on the connecting surface. The extending direction of the weight-reducing groove is consistent with the extending direction of the fixture base. The base plate has mounting holes, and a first connector and a second connector are respectively connected to the mounting holes. The mounting holes and weight-reducing grooves overlap and communicate with each other in the vertical direction.

[0015] Furthermore, the base plate includes multiple sets of connecting holes distributed along the extension direction of the fixture seat, which can be connected to the test platform; the connecting holes and the weight reduction groove do not overlap in the vertical direction, and the connecting holes penetrate the base plate in the vertical direction. The connecting holes and the fixture assembly are spaced apart along the extension direction perpendicular to the fixture seat.

[0016] The aforementioned hydrophone array test fixture has multiple clamping components that can fix multiple hydrophones in the hydrophone array respectively, and the multiple clamping components are connected to the vibration test platform through the base plate. The test platform drives the base to vibrate so that the multiple clamping components can vibrate synchronously, thereby keeping the test environment of the multiple hydrophones in the hydrophone array consistent, which is beneficial to improving the vibration test accuracy of the hydrophone array. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the hydrophone array test fixture provided in the implementation of this application;

[0018] Figure 2 This is a schematic diagram of the fixture cover of the hydrophone array test fixture provided in this application.

[0019] Figure 3 This is a front view of the hydrophone array test fixture provided in the implementation of this application;

[0020] Figure 4 This is a partial structural diagram of the limiting cover and fixture seat of the hydrophone array test fixture provided in this application.

[0021] Figure 5 This is a schematic diagram of the fixture base of the hydrophone array test fixture provided in this application.

[0022] Figure 6 This is a schematic diagram of the base plate of the hydrophone array test fixture provided in this application. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0025] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] like Figure 1 As shown, this application provides a hydrophone array test fixture 100, which includes a base plate 11 and a fixture assembly 12. The base plate 11 is connected to a test platform for vibration testing, so that the base plate 11 can vibrate synchronously with the test platform. The fixture assembly 12 is used to hold hydrophones, and at least two fixture assemblies 12 are provided, so that multiple fixture assemblies 12 can simultaneously hold multiple hydrophones in the hydrophone array. Furthermore, the fixture assembly 12 can be connected to the base plate 11 so that multiple hydrophones in the hydrophone array can vibrate synchronously, thereby ensuring that the test environment of multiple hydrophones in the hydrophone array remains consistent, which is beneficial to improving the accuracy of vibration testing of the hydrophone array.

[0027] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The directions shown are front, back, left, right, up, and down.

[0028] Specifically, each clamp assembly 12 includes a clamp base 121 and at least one clamp cover 122. The clamp base 121 is fixedly connected to the base plate 11 so that the clamp base 121 can vibrate synchronously with the base plate 11. Each clamp cover 122 is connected to the clamp base 121 and can cooperate with the clamp base 121 to fix the hydrophone.

[0029] More specifically, the clamp base 121 forms a first clamping groove 1211, the extension direction of the first clamping groove 1211 being consistent with the extension direction of the clamp base 121. In this application, the extension direction of the clamp base 121 is the left-right direction of the hydrophone array test fixture 100. The first clamping groove 1211 is used to limit the position of the hydrophone. The clamp cover 122 is at least partially located above the first clamping groove 1211. The clamp cover 122 and the first clamping groove 1211 enclose a clamping space 123, which is used to clamp the hydrophone. With this configuration, the hydrophone can be fixed by the first clamping groove 1211 and the clamp cover 122. Furthermore, the clamp cover 122 can improve the clamping stability of the clamp assembly 12 on the hydrophone, thereby preventing the hydrophone from shaking relative to the clamp assembly 12 during vibration testing, and further improving the accuracy of vibration testing of the hydrophone array.

[0030] In summary, the hydrophone array test fixture 100 of this application connects multiple fixture assemblies 12 to the vibration test platform via a base plate 11, enabling multiple hydrophones in the hydrophone array to undergo vibration testing simultaneously. Furthermore, the fixture base 121 and fixture cover 122 improve the clamping stability of the hydrophones, preventing them from shaking during vibration testing. This ensures that the test environment for multiple hydrophones remains consistent, thereby improving the accuracy of the vibration test of the hydrophone array.

[0031] It should be noted that the hydrophone array test fixture 100 of this application can also be used for other performance tests, such as the acceleration sensitivity test of hydrophones. The hydrophone array test fixture 100 of this application ensures that the acceleration sensitivity test environment of multiple hydrophones in the hydrophone array remains consistent, thereby improving the accuracy of the acceleration sensitivity test of the hydrophone array. Secondly, this application will use the vibration test of the hydrophone array as an example for illustration.

[0032] like Figure 1 and Figure 2 As shown, in one embodiment, the clamp cover 122 has a second clamping groove 1221 for clamping the hydrophone. Specifically, both the first clamping groove 1211 and the second clamping groove 1221 are arc-shaped grooves. With this configuration, since the hydrophone is typically cylindrical, the arc-shaped first and second clamping grooves 1211 and 1221 facilitate clamping the hydrophone by the clamp cover 122 and the clamp base 121. Furthermore, the arc-shaped grooves also facilitate clamping hydrophones of different sizes, thereby improving the versatility of the clamp assembly 12.

[0033] Specifically, the radius of curvature of the first clamping groove 1211 is the same as that of the second clamping groove 1221. In some embodiments, the radius of curvature of both the first clamping groove 1211 and the second clamping groove 1221 is the same as the radius of the hydrophone to be tested. With this configuration, when the hydrophone is held by the clamping seat 121 and the clamping cover 122, the fit between the first clamping groove 1211 and the hydrophone, as well as the fit between the second clamping groove 1221 and the hydrophone, can be improved, thereby improving the stability of the hydrophone held by the clamping seat 121 and the clamping cover 122, and further improving the accuracy of vibration testing of the hydrophone array.

[0034] More specifically, refer to Figure 3 The length L1 of the second clamping groove 1221 along the extending direction of the clamp base 121 is less than the length L2 of the first clamping groove 1211. This arrangement allows the clamp cover 122 to secure the hydrophone without completely covering the first clamping groove 121, saving material and reducing production costs. Furthermore, it facilitates the mounting of multiple clamp covers 122 on the clamp base 121, further improving the clamping stability of the clamp assembly 12 on the hydrophone.

[0035] like Figure 3 As shown, in one embodiment, the fixture base 121 has multiple sets of mounting points 1212 distributed along the extending direction of the fixture base 121. The mounting points 1212 are used to connect the fixture base 121 and the fixture cover 122. Specifically, each set of mounting points 1212 includes a first mounting point 1212a and a second mounting point 1212b. The first mounting point 1212a and the second mounting point 1212b are located on both sides of the first clamping groove 1211 along the perpendicular extending direction of the fixture base 121, that is, the first mounting point 1212a and the second mounting point 1212b are located on both sides of the first clamping groove 1211 along the left-right direction of the hydrophone array test fixture 100.

[0036] The clamp cover 122 is connected to two first fasteners 124 along a direction perpendicular to the clamp base 121. The two first fasteners 124 are respectively connected to a first mounting point 1212a and a second mounting point 1212b of any set of mounting points 1212. In some embodiments, the first fasteners 124 are bolts. This configuration allows the clamp cover 122 and clamp base 121 to be disassembled and reassembled by removing and installing the first fasteners 124, thus facilitating the assembly and disassembly of the hydrophone in the clamp assembly 12. Secondly, providing multiple sets of mounting points 1212 facilitates the assembly of multiple clamp covers 122 with the clamp base 121, thereby improving the clamping stability of the hydrophone in the clamp assembly 12. Furthermore, multiple sets of mounting points 1212 also allow the clamp cover 122 to be assembled at different mounting positions on the clamp base 121, thus facilitating the clamping of hydrophones of different sizes and improving the versatility of the clamp assembly 12.

[0037] In some implementations, one end of the hydrophone in the hydrophone array is connected to an optical cable. During hydrophone vibration testing, to prevent damage to the optical cable due to swaying, the clamp cover 122 of this application has a first limiting groove 1213. The first limiting groove 1213 is located on one side of the first clamping groove 1211 along the extension direction of the clamp base 121 and communicates with the first clamping groove 1211. With this configuration, the optical cable can be limited by the first limiting groove 1213.

[0038] Specifically, the fixture assembly 12 also includes a limiting cover 125, which is connected to the fixture base 121. The limiting cover 125 is at least partially located above the first limiting groove 1213. The limiting cover 125 and the first limiting groove 1213 enclose a limiting space 126, which is used to limit the optical cable. With this configuration, the limiting space 126 can restrict the swaying of the optical cable, thereby preventing excessive swaying of the optical cable during hydrophone vibration testing and avoiding damage to the optical cable. It can also prevent the reduction of the accuracy of the hydrophone vibration test due to the swaying of the optical cable, thus improving the accuracy of the hydrophone array vibration test.

[0039] As an optional implementation, the limiting cover 125 has a second limiting groove (not shown) for limiting the optical cable, and both the first limiting groove 1213 and the second limiting groove are arc-shaped grooves. With this configuration, since the optical cable is typically cylindrical, the arc-shaped first limiting groove 1213 and the second limiting groove facilitate the clamping of the optical cable by the limiting cover 125 and the clamping seat 121. Furthermore, the arc-shaped grooves also facilitate the clamping of optical cables of different sizes, thereby improving the versatility of the clamping assembly 12.

[0040] Specifically, the radius of curvature of the first limiting groove 1213 is the same as that of the second limiting groove. In some embodiments, the radius of curvature of both the first limiting groove 1213 and the second limiting groove is the same as the radius of the optical cable. With this configuration, when the limiting cover 125 and the clamping seat 121 clamp the optical cable, the fit between the first clamping groove 1211 and the hydrophone can be improved, as can the fit between the second limiting groove and the hydrophone. This improves the stability of the clamping seat 121 and the limiting cover 125 in clamping the hydrophone, and further improves the accuracy of vibration testing of the hydrophone array.

[0041] More specifically, the length L3 of the second limiting groove along the extension direction of the clamp base 121 is less than the length L4 of the first limiting groove 1213. This arrangement allows the limiting cover 125 to be used to fix the hydrophone without completely covering the first limiting groove 1213, saving material on the limiting cover 125 and reducing production costs. Secondly, it facilitates the assembly of multiple limiting covers 125 on the clamp base 121, further improving the clamping stability of the clamp assembly 12 on the optical cable.

[0042] like Figure 3 and Figure 5 As shown, in one embodiment, the clamp base 121 has a third mounting point 1215 and a fourth mounting point 1216, which are located on both sides of the first limiting groove 1213 along the extending direction of the clamp base 121. Specifically, the limiting cover 125 is connected to two second fasteners 127 along a direction perpendicular to the extending direction of the clamp base 121, and the two second fasteners 127 are respectively connected to the third mounting point 1215 and the fourth mounting point 1216. In some embodiments, the second fasteners 127 are bolts. With this configuration, the limiting cover 125 can be removed and installed by disassembling and assembling the second fasteners 127, which facilitates the assembly and disassembly of the optical cable on the clamp assembly 12.

[0043] In some embodiments, multiple third mounting points 1215 and multiple fourth mounting points 1216 are provided, and the multiple third mounting points 1215 and multiple fourth mounting points 1216 are distributed along the extending direction of the clamp base 121. Multiple limiting covers 125 are also provided. With this configuration, the multiple limiting covers 125 are connected to the clamp base 121, which can improve the clamping stability of the clamp assembly 12 on the optical cable, thereby further improving the accuracy of vibration testing of the hydrophone array.

[0044] like Figure 5 As shown, in one embodiment, a chamfer 1214 is provided at the connection between the first clamping groove 1211 and the first limiting groove 1213. It should be noted that a protrusion is provided at the connection between the hydrophone and the optical cable. The chamfer 1214 can provide space to accommodate the protrusion, which helps to improve the fit between the hydrophone and the optical cable in the clamping assembly 12, thereby improving the clamping stability of the clamping assembly 12 on the hydrophone and the optical cable, and thus improving the accuracy of vibration testing of the hydrophone array.

[0045] like Figure 5 As shown, in one embodiment, the fixture base 121 further includes at least one set of connectors 1217 distributed along the extending direction of the fixture base 121. Each set of connectors 1217 includes a first connector 1217a and a second connector 1217b. The first connector 1217a and the second connector 1217b are located on both sides of the fixture base 121 along a direction perpendicular to the extending direction of the fixture base 121, and the first connector 1217a and the second connector 1217b are respectively fixedly connected to the base plate 11. This fixed connection method can prevent shaking between the base plate 11 and the fixture base 121, which is beneficial to improving the accuracy of vibration testing of the hydrophone array. Secondly, placing the first connector 1217a and the second connector 1217b on both sides of the fixture base 121 can improve the connection stability between the fixture base 121 and the base plate 11, further improving the accuracy of vibration testing of the hydrophone array.

[0046] like Figure 6 As shown, as an optional implementation, the base plate 11 has mounting holes 111, and the first connector 1217a and the second connector 1217b are respectively connected to the mounting holes 111. In some embodiments, bolts pass through the first connector 1217a and the second connector 1217b and are respectively connected to the mounting holes 111, thereby fixing the first connector 1217a and the second connector 1217b to the base plate 11, which is beneficial for fixing the clamp seat 121 to the base plate 11.

[0047] like Figure 1 As shown, in one embodiment, the base plate 11 includes a connecting surface 112 that abuts against the test platform. The connecting surface 112 is located on the side of the base plate 11 away from the clamp assembly 12. The test platform drives the base plate 11 to vibrate through the connecting surface 112, and then drives the clamp assembly 12 to vibrate through the base plate 11, thereby driving the hydrophone to vibrate, which is beneficial for the vibration test of the hydrophone.

[0048] In this embodiment, the base plate 11 is provided with at least one weight-reducing groove 113. This arrangement reduces the weight of the base plate 11, thereby reducing the overall weight of the hydrophone array fixture and improving the ease of use of the hydrophone array test fixture 100.

[0049] Specifically, the opening of each weight-reducing groove 113 is located on the connecting surface 112, and the extending direction of the weight-reducing groove 113 is consistent with the extending direction of the fixture base 121. This arrangement reduces the connection area between the connecting surface 112 and the test platform, thus avoiding excessively large connection areas that would lead to excessively high machining accuracy requirements for the connecting surface 112. This simplifies the machining process of the base plate 11 and improves the machining efficiency of the base plate 11.

[0050] It should be noted that when the vibration test platform drives the base plate 11 to vibrate, the test platform and the connecting surface 112 need to have a high degree of fit. Therefore, the connecting surface 112 needs to be machined with high horizontal precision. When the connection area between the connecting surface 112 and the test platform is large, the overall machining precision requirement of the connecting surface 112 is high. Therefore, by reducing the connection area between the connecting surface 112 and the test platform, the machining precision requirement of the connecting surface 112 can be reduced, thereby simplifying the machining process of the base plate 11.

[0051] More specifically, the mounting hole 111 and the weight-reducing groove 113 overlap and connect in the vertical direction. This arrangement prevents interference between the bolt and the connecting surface 112 when the bolt passes through the mounting hole 111, thereby preventing interference between the bolt and the test platform and facilitating the connection between the base plate 11 and the test platform.

[0052] like Figure 1 and Figure 6 As shown, in one embodiment, the base plate 11 includes multiple sets of connecting holes 114 distributed along the extension direction of the fixture seat 121, which can be connected to the test platform. In some embodiments, the base plate 11 is fixedly connected to the test platform by bolts passing through the connecting holes 114 and connecting to the test platform, thereby facilitating vibration testing of the hydrophone array.

[0053] Specifically, the connecting hole 114 and the weight-reducing groove 113 do not overlap in the vertical direction, and the connecting hole 114 penetrates the base plate 11 in the vertical direction. This arrangement can prevent the bolts from passing through the weight-reducing groove 113 to connect with the test platform, which would reduce the connection stability between the base plate 11 and the test platform, thereby improving the stability of the test platform driving the base plate 11 to vibrate.

[0054] More specifically, each set of connecting holes 114 and clamp assembly 12 is spaced apart along a direction perpendicular to the extension of clamp base 121. This arrangement can improve the connection stability between the base plate 11 and the test platform, thereby improving the stability of the vibration of the base plate 11 driven by the test platform, which in turn helps to improve the vibration stability of the clamp assembly 12 driven by the base plate 11, thus improving the accuracy of vibration testing of hydrophone arrays.

[0055] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A hydrophone array test fixture, characterized in that, include: A base plate, which is connected to a test platform for vibration testing, and the base plate is capable of vibrating synchronously with the test platform; At least two clamping assemblies, each clamping assembly comprising: A clamping seat is fixedly connected to the base plate. The clamping seat is capable of vibrating synchronously with the base plate. The clamping seat has a first clamping groove, and the extending direction of the first clamping groove is consistent with the extending direction of the clamping seat. At least one clamp cover, each clamp cover being connected to the clamp seat; the clamp cover is at least partially located above the first clamping groove, the clamp cover and the first clamping groove enclosing a clamping space for clamping a hydrophone.

2. The hydrophone array test fixture according to claim 1, characterized in that, The clamp cover has a second clamping groove for clamping the hydrophone, and both the first clamping groove and the second clamping groove are arc-shaped grooves; the radius of curvature of the first clamping groove and the radius of curvature of the second clamping groove are the same; The length of the second clamping groove along the extension direction of the clamping seat is less than the length of the first clamping groove.

3. The hydrophone array test fixture according to claim 2, characterized in that, The clamp base has multiple sets of mounting points distributed along the extension direction of the clamp base. Each set of mounting points includes a first mounting point and a second mounting point. The first mounting point and the second mounting point are located on both sides of the first clamping groove along the extension direction perpendicular to the clamp base. The clamp cover is connected to two first fasteners along the extension direction perpendicular to the clamp base. The two first fasteners are respectively connected to the first mounting point and the second mounting point of any set of mounting points.

4. The hydrophone array test fixture according to claim 1, characterized in that, The clamp cover is provided with a first limiting groove, which is located on one side of the first clamping groove along the extension direction of the clamping seat and communicates with the first clamping groove. The clamp assembly further includes a limiting cover, which is connected to the clamp seat. The limiting cover is at least partially located above the first limiting groove. The limiting cover and the first limiting groove enclose a limiting space, which is used to limit the optical cable connected to the hydrophone.

5. The hydrophone array test fixture according to claim 4, characterized in that, The limiting cover has a second limiting groove for limiting the optical cable. Both the first limiting groove and the second limiting groove are arc-shaped grooves. The radius of curvature of the first limiting groove and the radius of curvature of the second limiting groove are the same. The length of the second limiting groove along the extension direction of the fixture seat is less than the length of the first limiting groove.

6. The hydrophone array test fixture according to claim 4, characterized in that, The fixture base is provided with a third mounting point and a fourth mounting point, and the third mounting point and the fourth mounting point are located on both sides of the first limiting groove along the extending direction of the fixture base; The limiting cover is connected to two second fasteners along the extension direction perpendicular to the clamp seat, and the two second fasteners are respectively connected to the third mounting point and the fourth mounting point.

7. The hydrophone array test fixture according to claim 4, characterized in that, A chamfer is provided at the connection between the first clamping groove and the first limiting groove.

8. The hydrophone array test fixture according to claim 1, characterized in that, The clamp seat further includes at least one set of connectors distributed along the extension direction of the clamp seat. Each set of connectors includes a first connector and a second connector. The first connector and the second connector are located on both sides of the clamp seat along a direction perpendicular to the extension direction of the clamp seat. The first connector and the second connector are respectively fixedly connected to the base plate.

9. The hydrophone array test fixture according to claim 8, characterized in that, The base plate includes a connecting surface that abuts against the test platform. The connecting surface is located on the side of the base plate opposite to the fixture assembly. The base plate has at least one weight-reducing groove. The opening of each weight-reducing groove is located on the connecting surface. The extending direction of the weight-reducing groove is consistent with the extending direction of the fixture seat. The base plate has mounting holes, and the first connector and the second connector are respectively connected to the mounting holes; the mounting holes and the weight reduction groove overlap and communicate with each other in the vertical direction.

10. The hydrophone array test fixture according to claim 9, characterized in that, The base plate includes multiple sets of connecting holes distributed along the extending direction of the fixture seat, the connecting holes being able to connect to the test platform; the connecting holes do not overlap with the weight reduction groove in the vertical direction, and the connecting holes penetrate the base plate in the vertical direction; The connecting holes and the clamp assembly are spaced apart along a direction perpendicular to the extension of the clamp seat.

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