Mobile acoustic beacon testing device

Abstract

The mobile acoustic beacon testing device comprises a water tank, vertical rods, wheels and T-shaped supports, the four wheels are installed at the bottom of the water tank respectively, a water hole is formed in the position close to the lower end of the water tank, the four parallel vertical rods are welded to the two sides of the upper end of the water tank respectively, and the four T-shaped supports are fixed to the opposite vertical rods on the two sides of the water tank respectively. The T-shaped support comprises a large hoop, a lower rod, a locking button, an upper rod, a cross rod, a small hoop and a three-way connector, the cross rod penetrates through the three-way connector, the center of the cross rod is fixed to the three-way connector, the upper end of the upper rod is fixed to the three-way connector, the lower end of the upper rod slides in the lower rod and is fixed to the upper end of the lower rod through the locking button, and the large hoop is fixed to the lower end of the lower rod; small hoops are fixed at the two ends of the cross rod, T-shaped brackets are fixed on the two corresponding vertical rods through the two small hoops, a standard hydrophone is fixed on the two large hoops of the two adjacent T-shaped brackets, and a product to be tested is fixed on the two large hoops of the two adjacent T-shaped brackets.

Description

Technical Field

[0001] The invention belongs to the field of underwater acoustic measurement and relates to a mobile acoustic beacon testing device. Background Art

[0002] With the continuous development of ultra-short baseline positioning equipment, the demand for real-time tracking of underwater rescue targets (divers, ROV, etc.) in shallow and complex environments is also increasing. The acoustic beacon is a relatively independent device in the ultra-short baseline positioning equipment. It is carried by the underwater target (ROV or diver), receives the control signal of the ultra-short baseline positioning equipment, processes and analyzes the signal data, and generates a response signal. The sound source level of the response signal determines the real-time tracking effect of the ultra-short baseline positioning equipment.

[0003] In order to solve the problem of testing the sound source level of acoustic beacons, effective testing equipment is needed for measurement. The traditional method is to go to a qualified metering station before the delivery of the acoustic beacon, and professional technicians use professional underwater acoustic testing systems for measurement, which is costly and sometimes requires waiting in line for a long time.

[0004] However, during the development phase of acoustic beacons, it is not convenient to test the sound source level of acoustic beacons at the metering station, which affects the development time and cost. The existing method is to estimate the sound source level based on the amplitude of the electrical signal (with large errors), or to go to deeper open waters, such as deep lakes, where there are no strong reflection signals around, and to test them in the far field of underwater sound. This is time-consuming, labor-intensive, and costly. Therefore, designing a mobile acoustic beacon test device has important practical significance. Summary of the invention

[0005] The invention of this application aims to provide a mobile acoustic beacon testing device.

[0006] In order to achieve the invention purpose of this application, this application adopts the following technical solutions:

[0007] The invention discloses a mobile acoustic beacon testing device, which comprises: a water tank, a vertical pole, wheels and a T-bracket, wherein four wheels are respectively mounted on the bottom of the water tank, a water hole is opened at the lower end close to the water tank, four vertical poles parallel to each other are respectively welded on both sides of the upper end of the water tank, and four T-brackets are respectively fixed on the vertical poles opposite to each other on both sides of the water tank, wherein: the T-bracket comprises: a large hoop, a lower pole, a locking button, an upper pole, a cross bar, a small hoop and a tee joint, the cross bar passes through the tee joint and its center is fixed on the tee joint, the upper end of the upper pole is fixed on the tee joint, the lower end of the upper pole slides in the lower pole and is fixed to the upper end of the lower pole through the locking button, a large hoop is fixed at the lower end of the lower pole, small hoop is fixed at both ends of the cross bar, the T-bracket is fixed to the corresponding two vertical poles through two small hoop, a standard hydrophone is fixed on the two large hoop of two adjacent T-brackets, and a product to be tested is fixed on the two large hoop of two adjacent T-brackets.

[0008] The mobile acoustic beacon testing device of the present invention, wherein: the minimum distance between the large hoop for fixing the standard hydrophone and the large hoop for fixing the product to be tested is 1 meter.

[0009] The mobile acoustic beacon testing device of the present invention, wherein: a water tank handle is installed at one end of the water tank.

[0010] The mobile acoustic beacon testing device of the present invention, wherein: a water tank workbench, a rotating rod and a supporting rod are installed at the other end of the water tank, one side of the water tank workbench is hinged at the upper end of the water tank and parallel to the upper end of the water tank, one end of the two rotating rods are respectively hinged to the water tank below the water tank workbench, one end of the two supporting rods are respectively hinged to the other ends of the two rotating rods, and the other ends of the two supporting rods are respectively hinged to the two sides of the water tank workbench, so that the water tank workbench can be folded around the side wall of the water tank.

[0011] The mobile acoustic beacon testing device of the present invention, wherein: the inner wall of the water tank is made of waterproof porous ceramic material.

[0012] The mobile acoustic beacon testing device of the present invention, wherein: the vertical pole is a pole with scales.

[0013] The mobile acoustic beacon testing device of the present invention, wherein: an AC socket is installed on the side wall of the water tank.

[0014] The mobile acoustic beacon testing device of the present invention has the following beneficial effects

[0015] The mobile acoustic beacon test device of the present invention is not restricted by geographical location and can be carried to a place where the acoustic beacon source level needs to be tested, which greatly improves the test efficiency of the acoustic beacon development stage, thereby saving time and labor costs, and the test effect is smaller than the error of estimating the sound source level by the electrical signal amplitude, and is closer to the actual sound source level. When used, it is not limited to testing the acoustic beacon of underwater targets (ROV or divers), and it also has good application value for the development of underwater acoustic power amplifiers and the sound source level test of related transmitting transducers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of a mobile acoustic beacon testing device of the present application from one angle;

[0017] Figure 2 A three-dimensional schematic diagram of the mobile acoustic beacon testing device of the present application from another angle;

[0018] Figure 3 This is the three-dimensional intention of the T-bracket.

[0019] exist Figures 1 to 3 Among them, number 1 is; number 2 is the vertical pole; number 3 is the water tank workbench; number 4 is the support pole; number 5 is the rotating pole; number 6 is the water tank; number 7 is the wheel; number 8 is the water hole; number 9 is the T-bracket; number 10 is the large hoop; number 11 is the lower pole; number 12 is the locking button; number 13 is the upper pole 1; number 14 is the cross pole; number 15 is the small hoop; number 16 is the three-way joint; number 17 is the AC socket. DETAILED DESCRIPTION

[0020] like Figures 1 to 3As shown, a mobile acoustic beacon test device includes: a water tank 6, a vertical pole 2, wheels 7 and a T-bracket 9. The four wheels are respectively installed at the bottom of the water tank 6. The inner wall of the water tank 6 is made of a waterproof porous ceramic material. A water hole 8 is opened near the lower end of the water tank 6. Four vertical poles 2 parallel to each other are welded on both sides of the upper end of the water tank 6. The vertical poles 2 are rods with scales. Four T-brackets 9 are respectively fixed on the vertical poles 2 opposite to each other on both sides of the water tank 6. The T-bracket 9 includes: a large hoop 10, a lower rod 11, a locking button 12, an upper rod 13, a cross bar 14, a small hoop 15 and a tee joint 16. The cross bar 14 passes through the tee joint 16 and its center is fixed on the tee joint 16. The upper end of the upper rod 13 is fixed on the tee joint 16. The lower end of the upper rod 13 slides in the lower rod 11 and is fixed to the upper end of the lower rod 11 through the locking button 12. The large hoop 10 is fixed to the lower end of the lower rod 11, and small hoops 15 are fixed at both ends of the cross bar 14. The T-bracket 9 is fixed to the corresponding two vertical poles 2 through two small hoops 15. The standard hydrophone is fixed to the two large hoops 10 of two adjacent T-brackets 9. The product to be tested is fixed to the two large hoops 10 of two adjacent T-brackets 9. The minimum distance between the large hoop 10 for fixing the standard hydrophone and the large hoop 10 for fixing the product to be tested is 1 meter.

[0021] A water tank handle 1 is installed at one end of the water tank 6, and a water tank workbench 3, a rotating rod 5 and a support rod 4 are installed at the other end of the water tank 6. One side of the water tank workbench 3 is hinged at the upper end of the water tank 6 and is parallel to the upper end of the water tank 6. One ends of the two rotating rods 5 are respectively hinged to the water tank 6 below the water tank workbench 3, one ends of the two support rods 4 are respectively hinged to the other ends of the two rotating rods 5, and the other ends of the two support rods 4 are respectively hinged to the two sides of the water tank workbench 3, so that the water tank workbench 3 can be folded around the side wall of the water tank 6, and an AC socket 17 is installed on the side wall of the water tank 6.

[0022] First, make a test water tank 6, leave a water hole 8, weld a handle 1 and a foldable workbench 3, install four vertical poles 2 with scales on both sides, and lay waterproof materials. The test water tank 6 is the core part of the mobile acoustic beacon test device, and its main function is to store water.

[0023] Secondly, by installing the wheels 7, the mobile acoustic beacon testing device can be easily moved from one place to another, making the use of the system more flexible.

[0024] Then, the bottom and side surfaces of the inner wall of the water tank 6 are made of porous ceramic material, and multiple layers of materials with different thicknesses and densities are used to effectively reduce the reflection and interference of sound waves and improve the accuracy of the test.

[0025] Then, the product to be tested or the standard hydrophone is fixed to the bottom of the T-bracket 9 and locked by the large hoop 10 , and the T-bracket 9 is connected to the vertical poles 2 with scales on both sides of the top of the water tank 6 through the small hoop 15 .

[0026] Adjust the distance between the product to be tested and the standard hydrophone to 1m, and ensure that they are on the same horizontal measuring plane, and lock the T-bracket 9 with the retractable poles with scales on both sides of the top of the water tank 6 with ring hoops.

[0027] Finally, fill the water tank with water, place the measuring equipment (such as filter and oscilloscope, etc.) on the workbench 3, and power on for testing and recording.

[0028] The above is only one embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A mobile acoustic beacon testing device, comprising: A water tank (6), a vertical pole (2), a wheel (7) and a T-shaped bracket (9), wherein four wheels are respectively mounted on the bottom of the water tank (6), a water hole (8) is opened at the lower end near the water tank (6), four vertical poles (2) parallel to each other are welded on both sides of the upper end of the water tank (6), and four T-shaped brackets (9) are respectively fixed on the vertical poles (2) opposite to each other on both sides of the water tank (6), characterized in that: the T-shaped bracket (9) comprises: a large hoop (10), a lower pole (11), a locking button (12), an upper pole (13), a cross bar (14), a small hoop (15) and a three-way joint (16), the cross bar (14) passes through the three-way joint (16) and its center The upper end of the upper rod (13) is fixed on the three-way joint (16), the lower end of the upper rod (13) slides in the lower rod (11) and is fixed to the upper end of the lower rod (11) through a locking button (12), a large hoop (10) is fixed to the lower end of the lower rod (11), small hoops (15) are fixed to the two ends of the cross bar (14), a T-shaped bracket (9) is fixed to the corresponding two vertical poles (2) through two small hoops (15), a standard hydrophone is fixed to the two large hoops (10) of two adjacent T-shaped brackets (9), and a product to be tested is fixed to the two large hoops (10) of two adjacent T-shaped brackets (9).

2. The mobile acoustic beacon testing device according to claim 1, characterized in that: The minimum distance between the large hoop (10) for fixing the standard hydrophone and the large hoop (10) for fixing the product to be tested is 1 meter.

3. The mobile acoustic beacon testing device according to claim 2, characterized in that: A water tank handle (1) is arranged at one end of the water tank (6).

4. The mobile acoustic beacon testing device according to claim 3, characterized in that: A water tank workbench (3), a rotating rod (5) and a support rod (4) are arranged at the other end of the water tank (6); one side of the water tank workbench (3) is hinged to the upper end of the water tank (6) and is parallel to the upper end of the water tank (6); one end of the two rotating rods (5) is respectively hinged to the water tank (6) below the water tank workbench (3); one end of the two support rods (4) is respectively hinged to the other end of the two rotating rods (5); the other end of the two support rods (4) is respectively hinged to the two sides of the water tank workbench (3), so that the water tank workbench (3) can be folded around the side wall of the water tank (6).

5. The mobile acoustic beacon testing device according to claim 4, characterized in that: The inner wall of the water tank (6) is made of a waterproof porous ceramic material.

6. The mobile acoustic beacon testing device according to claim 5, characterized in that: The vertical pole (2) is a pole with scales.

7. The mobile acoustic beacon testing device according to claim 6, characterized in that: An AC socket (17) is mounted on the side wall of the water tank (6).

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